research overview
- My research interests lie at the intersection of satellite navigation receiver technologies and the application of navigation satellite signals for remote sensing of the space environment, atmosphere, and Earth surface.
- Contact Info
Morton, Jade Austin Professor of Aerospace Engineering Sciences
Positions
- Professor, Center for Aerospace Structures (CAS)
- Faculty Fellow, College of Engineering and Applied Science
- Professor, Aerospace Engineering Sciences
- Faculty Fellow, Aerospace Engineering Sciences
- Faculty Director, College of Engineering and Applied Science
Research Areas
Research
Publications
selected publications
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book
-
chapter
- Fundamentals and Overview of GNSS Receivers. 309-338. 2020
- GNSS Receiver Signal Tracking,. 339-376. 2020
- Introduction, Early History, and Assured PNT. 3-43. 2020
- Ionospheric Effects, Monitoring, and Mitigation Techniques. 879-938. 2020
- Fusion of radar sensing, data communications, and GPS interoperability via software-defined OFDM architecture. 269-310. 2018
- Multifunctional Software-Defined Radar Sensors for Detection, Imaging, and Navigation. 151-167. 2013
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conference proceeding
- Characterization and impact analysis of radio frequency interference for GNSS reflectometry 2020
- Coherent GNSS reflection signal processing for precision altimetry applications 2020
- Detection of coherent GNSS-R measurements using a Support Vector Machine 2020
- GPS signal land reflection coherence dependence on water extent and surface topography using CYGNSS measurements 2020
- Carrier phase tracking architecture for positioning in LTE networks under channel fading conditions. 2605-2617. 2020
- Coherent GPS reflections over ocean surface 2020
- Coherent and semi-coherent spaceborne GNSS-R for land surface altimetry applications. 3901-3908. 2020
- Detecting ionospheric irregularity based on ROT variation using Android devices cloud system. 1850-1872. 2020
- GNSS Multi-frequency Carrier Tracking with Cycle Slip Detection and Mitigation Under Strong Ionosphere Scintillation. 2795-2802. 2020
- Improved Automatic Detection of GPS Satellite Oscillator Anomaly Using a Machine Learning Algorithm. 3567-3580. 2020
- Performance of cycle slip filtering algorithm during ionosphere scintillation 2020
- Preliminary assessment of CICERO radio occultation by comparing with COSMIC I data 2020
- Time lags in Ionospheric Scintillation Response to Geomagnetic Storms: Alaska Observations. 3493-3501. 2020
- Time lags in ionospheric scintillation response to geomagnetic storms: Alaska observations. 3494-3501. 2020
- Conjugate transfer function compensation of ionospheric refractive effects. 259-262. 2020
- Geomagnetic storm induced mid-latitude ionospheric plasma irregularities and their implications for GPS positioning over North America: a case study. 234-238. 2020
- Improved time-of-arrival estimation algorithm for cellular signals in multipath fading channels. 1358-1364. 2020
- Triple-Frequency GNSS Cycle Slip Detection Performance in the Presence of Diffractive Ionosphere Scintillation. 263-269. 2020
- Update on BeiDou Navigation Satellite System and PNT System. 392-398. 2020
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GPS L1CA/BDS B1I NLOS Signal Measurements and Modeling in Dense Urban Area.
236-248.
2020
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Hybrid carrier tracking and position determination using the low elevation satellite signals.
289-299.
2020
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Ionosphere Scintillation-Induced Phase Transitions in Triple-Frequency GPS Measurements.
912-919.
2020
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Performance Benefit from Dual-Frequency GNSS-based Aviation Applications under Ionospheric Scintillation: A New Approach to Fading Process Modeling.
889-899.
2020
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Machine learning based Automatic Detection of Ionospheric Scintillation-like GNSS Oscillator Anomaly Using Dual Frequency Signals.
Proceedings of the Annual Precise Time and Time Interval Systems and Applications Meeting, PTTI.
366-373.
2020
- Expected and unexpected findings in mining massive GNSS data for ionospheric effects 2020
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A Two-parameter Multi-frequency GPS Signal Simulator for Strong Equatorial Ionospheric Scintillation: Modeling and Parameter Characterization.
3408-3426.
2019
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Automatic Detection of Ionospheric Scintillation-like GNSS Oscillator Anomaly Using a Machine Learning Algorithm.
3390-3400.
2019
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Coherent Components of GNSS-R Signal Observed from CYGNSS Raw IF Data.
3319-3326.
2019
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Kinematic PPP Errors Associated with Ionospheric Plasma Irregularities during the 2015 St. Patrick's Day Storm.
3666-3674.
2019
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Ocean Vector Wind Retrieval from Delay-Doppler Maps using Ambiguous Stare Processing.
3309-3318.
2019
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Performance Comparison of Time-of-Arrival Estimation Techniques for LTE Signals in Realistic Multipath Propagation Channels.
2241-2253.
2019
- A MACHINE LEARNING FRAMEWORK FOR REAL DATA GNSS-R WIND SPEED RETRIEVAL. 8707-8710. 2019
- Coherent Reflections Using Closed-Loop PLL Processing of CYGNSS IF Data. 8737-8740. 2019
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Discrepancies Between Provided DCB Estimates and Equivalent Formulations in CAS DCB Product.
989-996.
2019
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Mountaintop GNSS-R and GNSS-RO Experiment: New Results and Insights.
655-661.
2019
- A new method to estimate ionospheric irregularity drift velocity using ROT variation and spaced GNSS reference stations 2019
- A two-parameter GNSS signal simulator for strong equatorial ionospheric scintillation 2019
- Automatic detection and characterization of ionospheric scintillation-like GNSS satellite and receiver oscillator anomaly 2019
- Characterization of coherence properties of signals of opportunity over land surface 2019
- Comparison of MGEX products for differential GNSS signal bias estimation 2019
- Measurement of ionospheric and atmospheric structures using navigation satellite signals captured with software-defined systems 2019
- Mountaintop GNSS-RO and GNSS-R experiment: new results and insights 2019
- Robust estimation of diffraction-induced phase transitions and cycle slips during strong ionospheric scintillation 2019
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Characterization and Mitigation of Interference between GNSS Radio Occultation and Reflectometry Signals for Low Altitude Occultations.
2848-2858.
2018
- Hybrid carrier tracking and position determination using low elevation satellite signals. 4125-4133. 2018
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Implementation and Performance Evaluation of a Vector-based Receiver during Strong Equatorial Scintillation on Dynamic Platforms.
3611-3622.
2018
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Robust Closed-loop Tracking of Airborne Low-Elevation GPS Radio-Occultation Signals.
4125-4133.
2018
- MOUNTAINTOP OCEAN REFLECTOMETRY WITH DUAL FREQUENCY GPS SIGNALS: EXPERIMENT AND PRELIMINARY RESULTS. 7680-7683. 2018
- SIMULATION STUDY OF THE COMMON SURFACE SCENARIO IN GNSS-REFLECTOMETRY. 3165-3168. 2018
- High-latitude ionospheric scintillations during geomagnetic disturbances 2018
- Scintillation Monitoring and Feature Analysis Using Multi-Frequency GNSS Receivers 2018
- An Improved Adaptive Multi-Frequency GPS Carrier Tracking Algorithm for Navigation in Challenging Environments. 899-907. 2018
- An improved Adaptive Multi-Frequency GPS carrier tracking algorithm for navigation in challenging environments. 899-907. 2018
- Application of Machine Learning to the Characterization of GPS Ll Ionospheric Amplitude Scintillation. 1159-1166. 2018
- Simulation and Tracking Algorithm Evaluation for Scintillation Signals on LEO Satellites Traveling Inside the Ionosphere. 1143-1150. 2018
- An Adaptive Inter-frequency Aiding Carrier Tracking Algorithm for the Mountain-top GPS Radio Occultation Signal. 412-419. 2018
- An adaptive inter-frequency aiding carrier tracking algorithm for the Mountain-top GPS radio occultation signal. 412-419. 2018
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Ionosphere Scintillation Effects on GPS Measurements, a New Carrier-Smoothing Technique, and Positioning Algorithms to Improve Accuracy
2018
- A New GNSS Scintillation Model. 3879-3887. 2017
- An Adaptive Carrier Tracking Algorithm for Low Altitude Mountain-based GPS Radio Occultation Measurement. 3767-3774. 2017
- Long-Term Analysis of Carrier Phase Residual Variations Using Geometry-Ionosphere-Free Combination of Triple-Frequency GPS Observations. 4122-4138. 2017
- Robust GPS Carrier Tracking Algorithms during Strong Equatorial Scintillation for Dynamic Platforms. 4112-4121. 2017
- Scintillation Simulation on Equatorial GPS Signals for Dynamic Platforms. 1644-1657. 2017
- Spaced Multi-GNSS Receiver Array as Ionosphere Radar for Irregularity Drift Velocity Estimation during High Latitude Ionospheric Scintillation. 3389-3401. 2017
- Experimental Radar-Enabled Navigation with UWB System in Indoor Environments 2017
- Radar Communications via Random Sequence Encoding 2017
- A comparative study of time-domain and joint time-frequency-domain methods for ionospheric irregularity drift velocity estimation from a GNSS receiver array during high latitude ionospheric scintillation 2017
- Simulation study of GPS phase scintillation 2017
- Statistical characterization of GNSS signal carrier Doppler frequency deviations during ionospheric scintillation 2017
- Ionospheric Scintillation Observations in Singapore using a High Gain Antenna and SDR. 866-875. 2017
- Mountain-top Radio Occultation with Multi-GNSS Signals: Experiment and Preliminary Results. 490-499. 2017
- Automatic GPS Phase Scintillation Detector Using a Machine Learning Algorithm. 1160-1172. 2017
- Ionospheric Scintillation Effects on GPS Pseudorange and Carrier Phase Measurements and An Adaptive Algorithm to Limit Position Errors During Scintillation. 971-988. 2017
- Joint estimation of ionosphere TEC, receiver inter-frequency biases, and carrier ambiguities using 3-frequency GPS measurements 2017
- BeiDou Signal Parameters Characterization During Strong Equatorial Ionospheric Scintillation. 2654-2661. 2016
- Equatorial Amplitude Scintillation Spectrum Analysis and Fading Characteristics on GPS Signals. 1680-1687. 2016
- Performance Evaluations of an Equatorial GPS Amplitude Scintillation Detector Using a Machine Learning Algorithm. 195-199. 2016
- A Comparative Study of Ionospheric Irregularity Drift Velocity using a GNSS Receiver Array and SuperDARN at High Latitude. 532-539. 2016
- Spatial Gradient Based TEC Estimation Algorithm with Code Noise Multipath Correction Evaluation Using Simultaneous Incoherent Scatter Radar Measurements. 140-150. 2016
- A Comparative Study of Triple Frequency GPS Scintillation Signal Amplitude Fading Characteristics at Low Latitudes. 3819-3825. 2015
- GPS Multi-Frequency Carrier Phase Characterization During Strong Equatorial Ionospheric Scintillation. 3787-3796. 2015
- Spaced Receiver Array for Ionospheric Irregularity Drift Velocity Estimation Using Multi-band GNSS Signals. 3449-3458. 2015
- A Comparative Analysis of GPS Ionospheric Scintillations Observed in Northern and Southern Equatorial Anomaly Regions in 2013-2014. 25-47. 2015
- Analysis of receiver multi-frequency response to ionospheric scintillation in Ascension Island, Hong Kong, and Singapore. 10-16. 2015
- GPS Based TEC Estimation Algorithm Evaluation Using Simultaneous Incoherent Scatter Radar Measurements. 78-84. 2015
- GPS Carrier Parameters Characterization During Strong Equatorial Ionospheric Scintillation. 521-529. 2015
- Characteristics of Low-latitude Signal Fading Across the GPS Frequency Bands. 1203-1212. 2014
- Implementation and Performance Analysis of A Multi-Frequency GPS Signal Tracking Algorithm. 2747-2753. 2014
- Redblade: Miami University's Multi-functional Autonomous Robot. 559-568. 2014
- Spatial Characterization of High Latitude Ionosphere Scintillation Using An Array of Software Receiver Measurements. 1499-1507. 2014
- Multi-Constellation GNSS Observations of Equatorial Ionospheric Scintillation 2014
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Regional Ionospheric TEC Gradients Estimation Using a Single GNSS Receiver.
Lecture Notes in Electrical Engineering.
363-373.
2014
- Simultaneous Indoor Localization and Detection with Multi-Carrier Radar. 881-886. 2014
- USRP based OFDM Radar systems for Doorway Detection. 875-880. 2014
- Comparative Studies of High-latitude and Equatorial Ionospheric Scintillation Characteristics of GPS Signals. 37-42. 2014
- Extending Integration Time for Galileo Tracking Robustness Under Ionosphere Scintillation. 59-72. 2014
- Simulation Study of the Effect of Orbital Errors on Open-Loop Tracking in GPS Radio Occultation. 82-86. 2014
- Triple Frequency GPS Signal Tracking During Strong Ionospheric Scintillations over Ascension Island. 43-49. 2014
- Algorithms and Results of Tracking BeiDou Signals During Strong Ionospheric Scintillation Over Ascension Island. 730-735. 2014
- Performance Analysis of L2 and L5 CNAV Broadcast Ephemeris for Orbit Calculation. 761-768. 2014
- Experimental Study of Two-channel UWB-OFDM Radar for Indoor Navigation with INS Integration. 756-761. 2013
- GNSS Receiver Carrier Tracking Loop Impact on Ionosphere Scintillation Signal C/N-0 and Carrier Phase Estimation. 3248-3254. 2013
- Ionosphere TEC and TEC gradients estimation using a regional GNSS network. 1875-1880. 2013
- On the Correlation Between Ionospheric Scintillation and Geomagnetic Field Activities. 77-83. 2013
- Quantitative Spectrum Analysis on High Latitude and Equatorial Ionosphere Scintillation. 1833-1839. 2013
- Reconnaissance Using Adaptive Multi-Carrier Radar 2013
- Short-Range Rotational SAR Imaging of Indoor Environments Using UWB OFDM Sensor 2013
- A Comparison of GNSS-based Ionospheric Scintillation Observations in North and South Hong Kong. 694-705. 2013
- GPS Receiver Ionosphere Error Correction Based on Spatial Gradients and IGS Satellite DCBs. 685-693. 2013
- High Latitude and Equatorial Ionosphere Scintillation Spectrum Analysis. 401-405. 2013
- International Collaborative Navigation Research. 1104-1109. 2013
- Ionosphere Scintillation Receiver Performances Based on High Latitude Experiments. 743-751. 2013
- On Detecting Underground Nuclear Explosions with GNSS and Radio Astronomical Observations. 52-61. 2013
- High Latitude Ionosphere Scintillation Characterization. 579-584. 2013
- Performance Analysis of A USRP Based GPS and GLONASS Signal Recording and Playback System. 136-145. 2013
- L Band Ionosphere Scintillation Impact on GNSS Receivers 2013
- Performances of GPS Signal Observables Detrending Methods for Ionosphere Scintillation Studies. 3435-3443. 2012
- Spatial Characterization of High Latitude Ionosphere Scintillations. 3459-3464. 2012
- Doorway Identification and Classification Using Software-Defined UWB OFDM Radar. Proceedings of the IEEE National Aerospace and Electronics Conference. 250-254. 2012
- Cognitive Radar for Indoor Positioning with a Software-Defined UWB OFDM System 2012
- A USRP-Based GNSS and Interference Signal Generator and Playback System. 470-478. 2012
- A multiple-frequency GPS software receiver design based on a vector tracking loop. 495-505. 2012
- Tirne-Frequency Analysis of Ionosphere Scintillations Observed by A GNSS Receiver Array. 274-281. 2012
- An Improved Ionosphere Scintillation Event Detection and Automatic Trigger for A GNSS Data Collection System. 1563-1569. 2012
- GPS Carrier Phase Detrending Methods and Performances for Ionosphere Scintillation Studies. 1462-1467. 2012
- Detection of Behind-the-Wall Targets with Adaptive UWB OFDM Radar: Experimental Approach. IEEE National Radar Conference - Proceedings. 945-950. 2011
- A USRP2-Based Multi-Constellation and Multi-Frequency GNSS Software Receiver for Ionosphere Scintillation Studies. 1033-1042. 2011
- Measurement and Analysis of Artificially-Generated and Natural Ionosphere Scintillations Effects on GNSS Signals. 950-958. 2011
- A Variable Gain Adaptive Kalman Filter-Based GPS Carrier Tracking Algorithm for Ionosphere Scintillation Signals. 3107-3114. 2010
- An Efficient Algorithm for Short Delay Time Multipath Estimation and Mitigation. 152-160. 2010
- GPS Carrier Signal Parameters Estimation Under Ionosphere Scintillation. 3277-3283. 2010
- A Unique Software GPS Receiver and Simulator Platform for Clock Error Measurement and Simulation. 2923-2930. 2010
- An Event Driven GPS Data Collection System for Studying Ionospheric Scintillation. 3903-3909. 2010
- GPS Carrier Phase Spectrum Estimation for Ionosphere Scintillation Studies. 608-616. 2010
- High Latitude Ionosphere Scintillations at GPS L5 Band. 597-607. 2010
- Multi-Domain Analysis of the Impact of Natural and Man-made Ionosphere Scintillations on GNSS Signal Propagation. 617-625. 2010
- Predicting GLONASS Satellite Orbit Based on an Almanac Conversion Algorithm for Controlled Ionosphere Scintillation Experiment Planning. 3118-3124. 2010
- REDBLADE: MIAMI UNIVERSITY'S MULTI-FUNCTIONAL AUTONOMOUS ROBOT. 304-313. 2010
- A Software-Based Receiver Sampling Frequency Calibration Technique and its Application in GPS Signal Quality Monitoring. 512-521. 2010
- Characterization of GNSS Signal Parameters under Ionosphere Scintillation Conditions using Software-based Tracking Algorithms. 363-374. 2010
- Processing GPS L2C Signals under Ionospheric Scintillations. 830-841. 2010
- GPS Signal Propagation Mode Impact on Receiver Position Errors. 426-432. 2010
- Passive and Active Analysis in DSR-Based Ad Hoc Networks. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering. 623-638. 2009
- Efficient Sparse Target Tracking Algorithm for Navigation with UWB-OFDM Radar Sensors. 14-17. 2009
- Robot Localization Using RF and Inertial Sensors. 343-348. 2008
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Analysis of EEG data using an adaptive periodogram technique.
Proceedings of the International Conference on Biomedical Engineering and Informatics. International Conference on Biomedical Engineering and Informatics.
353-357.
2008
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An ANOVA-based GPS multipath detection algorithm using multi-channel software receivers.
1316-1323.
2008
- On co-existence of in-band UWB-OFDM and GPS signals: Tracking performance analysis. 1061-1067. 2008
- Feasibility study of a multi-carrier dual-use imaging radar and communication system. 193-196. 2007
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Feasibility study of a multi-carrier dual-use imaging radar and communication system.
1473-1476.
2007
- Calibrating Non-GPS Navigation Sensors for Use in Robot Localization. 1137-1146. 2007
- GPS Interference Sources Angle of Arrival Estimation Using an Adaptive Periodogram Technique. 398-404. 2007
- On Coexistence of In-Band UWB-OFDM and GPS Signals. 378-385. 2007
- Miami Metro GPS Team. 3089-3093. 2006
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A software approach to access ultra-wide band interference on GPS receivers.
551-557.
2004
- Application of a neural network model to GPS ionosphere error correction. 538-542. 2004
-
Morphology of nighttime ion, potassium and sodium layers in the meteor zone above Arecibo.
Journal of Atmospheric and Solar: Terrestrial Physics.
1245-1257.
2003
- An approach to develop component-based control software for flexible manufacturing systems. Proceedings of the ... American Control Conference. American Control Conference. 4708-4713. 2002
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journal article
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Coherent GNSS Reflection Signal Processing for High-Precision and High-Resolution Spaceborne Applications.
IEEE Transactions on Geoscience and Remote Sensing.
831-842.
2021
-
GPS L1CA/BDS B1I Multipath Channel Measurements and Modeling for Dynamic Land Vehicle in Shanghai Dense Urban Area.
IEEE Transactions on Vehicular Technology.
14247-14263.
2020
-
Performance comparison of time-of-arrival estimation techniques for LTE signals in realistic multipath propagation channels.
Navigation (Washington).
691-712.
2020
-
GNSS signal phase, TEC, and phase unwrapping errors.
Navigation (Washington).
865-873.
2020
-
GNSS Carrier Phase Cycle Slips Due to Diffractive Ionosphere Scintillation: Simulation and Characterization.
IEEE Transactions on Aerospace and Electronic Systems.
3632-3644.
2020
-
Kalman Filter-Based Robust Closed-Loop Carrier Tracking of Airborne GNSS Radio-Occultation Signals.
IEEE Transactions on Aerospace and Electronic Systems.
3384-3393.
2020
-
Automatic detection of ionospheric scintillation-like GNSS satellite oscillator anomaly using a machine-learning algorithm.
Navigation (Washington).
651-662.
2020
-
Generalized Multifrequency GPS Carrier Tracking Architecture: Design and Performance Analysis.
IEEE Transactions on Aerospace and Electronic Systems.
2548-2563.
2020
-
Multipath Estimating Delay Lock Loop for LTE Signal TOA Estimation in Indoor and Urban Environments.
IEEE Transactions on Wireless Communications.
5518-5530.
2020
-
Global View of Ionospheric Disturbance Impacts on Kinematic GPS Positioning Solutions During the 2015 St. Patrick's Day Storm.
Journal of Geophysical Research: Space Physics.
2020
-
Characterization and mitigation of interference between GNSS radio occultation and reflectometry signals for low-altitude occultations.
Navigation (Washington).
537-546.
2020
-
Low-latitude GNSS ionospheric scintillation dependence on magnetic field orientation and impacts on positioning.
Journal of Geodesy.
2020
-
Efficient Weighted Centroid Technique for Crowdsourcing GNSS RFI Localization Using Differential RSS.
IEEE Transactions on Aerospace and Electronic Systems.
2471-2477.
2020
-
A two-parameter multifrequency GPS signal simulator for strong equatorial ionospheric scintillation: modeling and parameter characterization.
Navigation (Washington).
181-195.
2020
-
A State-Based Method to Simultaneously Reduce Cycle Slips and Noise in Coherent GNSS-R Phase Measurements From Open-Loop Tracking.
IEEE Transactions on Geoscience and Remote Sensing.
1-12.
2020
-
Stochastic TEC Structure Characterization.
Journal of Geophysical Research: Space Physics.
10571-10579.
2019
-
Application of Neural Network to GNSS-R Wind Speed Retrieval.
IEEE Transactions on Geoscience and Remote Sensing.
9756-9766.
2019
-
Planetary Boundary Layer Height Detection Using Mountaintop-Based GNSS Radio Occultation Signal Amplitude.
IEEE Transactions on Geoscience and Remote Sensing.
4332-4348.
2019
-
A Hybrid Correlation Model for the Spaced-Receiver Technique.
Radio Science.
281-297.
2019
-
On Inconsistent ROTI Derived From Multiconstellation GNSS Measurements of Globally Distributed GNSS Receivers for Ionospheric Irregularities Characterization.
Radio Science.
215-232.
2019
-
Introduction to the special issue on the BeiDou navigation system.
Navigation (Washington).
3-5.
2019
-
A compact multi-frequency GNSS scintillation model.
Navigation (Washington).
563-569.
2018
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GPS navigation data bit decoding error during strong equatorial scintillation.
GPS Solutions.
2018
-
A Multifrequency GPS Signal Strong Equatorial lonospheric Scintillation Simulator: Algorithm, Performance, and Characterization.
IEEE Transactions on Aerospace and Electronic Systems.
1947-1965.
2018
-
Artificial Ionospheric GPS Phase Scintillation Excited During High-Power Radiowave Modulation of the Ionosphere.
Radio Science.
775-789.
2018
-
Ionospheric Scintillation Simulation on Equatorial GPS Signals for Dynamic Platforms.
Navigation (Washington).
263-274.
2018
-
A Semi-Open Loop GNSS Carrier Tracking Algorithm for Monitoring Strong Equatorial Scintillation.
IEEE Transactions on Aerospace and Electronic Systems.
722-738.
2018
-
New Results on Ionospheric Irregularity Drift Velocity Estimation Using Multi-GNSS Spaced-Receiver Array During High-Latitude Phase Scintillation.
Radio Science.
228-240.
2018
-
Monitoring and Mitigation of Ionospheric Anomalies for GNSS-Based Safety Critical Systems.
IEEE: Signal Processing Magazine.
96-110.
2017
-
Performance Evaluation of an Automatic GPS Ionospheric Phase Scintillation Detector Using a Machine-Learning Algorithm.
Navigation (Washington).
391-402.
2017
-
Generalized GNSS Signal Carrier Tracking-Part II: Optimization and Implementation.
IEEE Transactions on Aerospace and Electronic Systems.
1798-1811.
2017
-
Generalized GNSS Signal Carrier Tracking: Part I-Modeling and Analysis.
IEEE Transactions on Aerospace and Electronic Systems.
1781-1797.
2017
-
A comparative study of ionospheric irregularity drift velocity derived from a GNSS receiver array and Poker Flat Incoherent Scatter Radar measurements during high-latitude ionospheric scintillation.
Journal of Geophysical Research: Space Physics.
6858-6881.
2017
-
Automatic Equatorial GPS Amplitude Scintillation Detection Using a Machine Learning Algorithm.
IEEE Transactions on Aerospace and Electronic Systems.
405-418.
2017
-
Equatorial Scintillation Amplitude Fading Characteristics Across the GPS Frequency Bands.
Navigation (Washington).
267-281.
2016
-
Iterative subspace alternating projection method for GNSS multipath DOA estimation.
IET Radar, Sonar and Navigation.
1260-1269.
2016
-
High-Latitude Ionospheric Irregularity Drift Velocity Estimation Using Spaced GPS Receiver Carrier Phase Time-Frequency Analysis.
IEEE Transactions on Geoscience and Remote Sensing.
6099-6113.
2015
-
Comparison of the effect of high-latitude and equatorial ionospheric scintillation on GPS signals during the maximum of solar cycle 24.
Radio Science.
886-903.
2015
-
Studies of the ionospheric turbulence excited by the fourth gyroharmonic at HAARP.
Journal of Geophysical Research: Space Physics.
6646-6660.
2015
-
Performance Analysis of L2 and L5 CNAV Broadcast Ephemeris for Orbit Calculation.
Navigation (Washington).
121-130.
2015
-
GPS phase scintillation at high latitudes during geomagnetic storms of 7-17 March 2012-Part 1: The North American sector.
Annales Geophysicae: atmospheres, hydrospheres and space sciences.
637-656.
2015
-
GPS phase scintillation at high latitudes during geomagnetic storms of 7-17 March 2012-Part 2: Interhemispheric comparison.
Annales Geophysicae: atmospheres, hydrospheres and space sciences.
657-670.
2015
-
Target scene frequency diversity exploitation with ultra-wideband orthogonal frequency division multiplexing radar.
IET Radar, Sonar and Navigation.
1247-1254.
2014
-
GPS Discrimination of Traveling Ionospheric Disturbances from Underground Nuclear Explosions and Earthquakes.
Navigation (Washington).
125-134.
2014
-
Performance evaluation of MSK and OFDM modulations for future GNSS signals.
GPS Solutions.
163-175.
2014
-
Characterization of high-latitude ionospheric scintillation of GPS signals.
Radio Science.
698-708.
2013
-
A Computationally Efficient Iterative MLE for GPS AOA Estimation.
IEEE Transactions on Aerospace and Electronic Systems.
2707-2716.
2013
-
Oscillator Frequency Offset Impact on Software GPS Receivers and Correction Algorithms.
IEEE Transactions on Aerospace and Electronic Systems.
2158-2178.
2013
- Comparative Studies of GPS Multipath Mitigation Methods Performance. IEEE Transactions on Aerospace and Electronic Systems. 1555-1568. 2013
- Real-Time UWB-OFDM Radar-Based Navigation in Unknown Terrain. IEEE Transactions on Aerospace and Electronic Systems. 1453-1466. 2013
-
GPS Carrier Phase Spectrum Estimation for Ionospheric Scintillation Studies.
Navigation (Washington).
113-122.
2013
-
A USRP2-based reconfigurable multi-constellation multi-frequency GNSS software receiver front end.
GPS Solutions.
89-102.
2013
-
An Analysis of Low-Latitude Ionospheric Scintillation and Its Effects on Precise Point Positioning.
Journal of Global Positioning Systems.
22-32.
2012
-
Ionospheric detection of the 25 May 2009 North Korean underground nuclear test.
Geophysical Research Letters.
2011
-
Ionosphere geomagnetic field: Comparison of IGRF model prediction and satellite measurements 1991-2010.
Radio Science.
2011
-
Magneto-ionic polarization and GPS signal propagation through the ionosphere.
Radio Science.
2011
-
Incoherent scatter radar observation of E-region vertical electric field at Arecibo.
Geophysical Research Letters.
2011
-
Radar and GPS System Inter-Operability with UWB-OFDM Signals.
IEEE Transactions on Aerospace and Electronic Systems.
265-274.
2011
-
Higher-order ionospheric error at Arecibo, Millstone, and Jicamarca.
Radio Science.
2010
-
Functional Bandwidth Criterion for Adaptive Array Performance.
IEEE Transactions on Aerospace and Electronic Systems.
1226-1234.
2010
-
GPS Multipath Detection with ANOVA for Adaptive Arrays.
IEEE Transactions on Aerospace and Electronic Systems.
1171-1184.
2010
-
Assessment of the Higher Order Ionosphere Error on Position Solutions.
Navigation (Washington).
185-193.
2009
-
Intelligent Sensing and Classification in Ad Hoc Networks: A Case Study.
IEEE Aerospace and Electronic Systems Magazine.
23-30.
2009
-
Mistiming Performance Analysis of the Energy Detection Based ToA Estimator for MB-OFDM.
IEEE Transactions on Wireless Communications.
3980-3984.
2009
-
Intelligent Sensing and Classification in DSR-Based Ad Hoc Networks.
IEICE Transactions on Information and Systems.
818-825.
2009
-
Assessment of second-order ionosphere error in GPS range observables using Arecibo incoherent scatter radar measurements.
Radio Science.
2009
-
False AlarmRate Estimation for Information-Theoretic-Based Source Enumeration Methods.
Eurasip Journal on Advances in Signal Processing.
2009
-
Miami Redblade III: A GPS-aided Autonomous Lawnmower.
Journal of Global Positioning Systems.
115-124.
2008
-
Gravity wave propagation in a nonisothermal atmosphere with height varying background wind.
Geophysical Research Letters.
2007
-
GPS civil signal self-interference mitigation during weak signal acquisition.
IEEE Transactions on Signal Processing.
5859-5863.
2007
-
A case study of mesospheric gravity wave momentum flux and dynamical instability using the Arecibo dual beam incoherent scatter radar.
Geophysical Research Letters.
2006
-
Incoherent scatter radar study of photochemistry in the E-region.
Geophysical Research Letters.
2005
-
Neural network development for the forecasting of upper atmosphere parameter distributions.
Advances in Space Research.
2480-2485.
2005
-
Software approach to access UWB interference on GPS receivers.
IEEE Aerospace and Electronic Systems Magazine.
28-33.
2005
-
Aspect sensitivity of VHF echoes from field aligned irregularities in meteor trails and thin ionization layers.
Atmospheric Chemistry and Physics.
685-692.
2004
-
A state-based modelling approach to develop component-based control software for flexible manufacturing systems.
International Journal of Computer Integrated Manufacturing.
292-306.
2003
-
Observations of the Diurnal Tide from Space.
Journal of the Atmospheric Sciences.
3077-3093.
1994
-
Radar measurements of dynamics and layering processes in the 80–150 km region at Arecibo.
Advances in Space Research.
153-160.
1994
-
COMPARISON OF HRDI WIND MEASUREMENTS WITH RADAR AND ROCKET OBSERVATIONS.
Geophysical Research Letters.
1259-1262.
1993
-
GLOBAL MESOSPHERIC TIDAL WINDS OBSERVED BY THE HIGH-RESOLUTION DOPPLER IMAGER ON BOARD THE UPPER-ATMOSPHERE RESEARCH SATELLITE.
Geophysical Research Letters.
1263-1266.
1993
-
Effects of the 13–14 March 1989 geomagnetic storm on the E region Tidal Ion Layer structure at Arecibo during AIDA.
Journal of Atmospheric and Solar: Terrestrial Physics.
467-485.
1993
-
Observations of ion and sodium layer coupled processes during AIDA.
Journal of Atmospheric and Solar: Terrestrial Physics.
487-498.
1993
- Further evidence for a 6-hour tide above Arecibo. Journal of Atmospheric and Solar: Terrestrial Physics. 459-465. 1993
- Observation of ion layer motions during the AIDA campaign. Journal of Atmospheric and Solar: Terrestrial Physics. 447-457. 1993
-
REMOTE-SENSING OF MESOSPHERIC WINDS WITH THE HIGH-RESOLUTION DOPPLER IMAGER.
Planetary and Space Science.
1599-1606.
1992
- An upper E-region quarter diurnal tide at Arecibo?. Journal of Geophysical Research. 10047-10051. 1988
-
Coherent GNSS Reflection Signal Processing for High-Precision and High-Resolution Spaceborne Applications.
IEEE Transactions on Geoscience and Remote Sensing.
831-842.
2021
editor of
Teaching
courses taught
-
ASEN 3300 - Aerospace Electronics and Communications
Primary Instructor - Spring 2020
Provides the fundamentals of electronics and communications widely used in aerospace engineering. Includes analog instrumentation electronics, data acquisition, digital electronics and radio communication. Offered spring only. -
ASEN 5210 - Remote Sensing Seminar
Primary Instructor - Fall 2018
Covers subjects pertinent to remote sensing of the Earth, including oceanography, meteorology, vegetation monitoring, and geology. Emphasizes techniques for extracting geophysical information from satellite data. Course requirement for Remote Sensing Certificate. Formerly ASEN 6210. -
ASEN 6090 - Advanced Global Navigation Satellite Systems: Software and Applications
Primary Instructor - Fall 2019
Focuses on high-precision applications of Global Navigation Satellite Systems (GNSS) and the software tools that are needed to achieve these precisions. Topics include precise orbital determination, reference frames, atmospheric delays, relativity, clock models, ambiguity resolution, and scientific applications. Recommended prerequisite: ASEN 5090 or instructor consent required. -
ASEN 6091 - Global Navigation Satellite System (GNSS) Receiver Architecture
Primary Instructor - Fall 2019
Investigates the overall architecture of satellite navigation receivers: including both the analog radio frequency conditioning (antenna to the analog-to-digital converter) and the various signal processing algorithms. Such treatment of the operation of the receiver will provide insight into the trade-offs that go into GNSS as well as the more broad generic spread spectrum receiver design. Recommended prerequisite: ASEN 5090. -
ASEN 6519 - Special Topics
Primary Instructor - Spring 2019
Reflects upon specialized aspects of aerospace engineering sciences. Course content is indicated in the online Schedule Planner. May be repeated up to 9 total credit hours. Recommended prerequisite: varies. -
ATOC 7500 - Special Topics in Atmospheric and Oceanic Sciences
Primary Instructor - Fall 2018
Acquaints students with current research in atmospheres, oceans, and climate. Topics may vary each semester. May be repeated up to 9 total credit hours. Students may register for more than one section of this course in the same semester.
Background
education and training
- M.S., Miami University-Hamilton 2000
- Ph.D., Pennsylvania State University 1991
- M.S., Case Western Reserve University 1987
- B.S., Nanjing Univ of Sci & Tech (China) 1983
awards and honors
International Activities
global connections related to teaching and scholarly work (in recent years)
- Africa Continent
- Americas Transnational Region
- Asia Continent
- Australia Country
- Brazil Country
- Canada Country
- Chile Country
- China Country
- Europe Continent
- France Country
- Germany Country
- India Country
- Italy Country
- Japan Country
- Netherlands Country
- Nigeria Country
- North Korea Country
- Norway Country
- Peru Country
- Puerto Rico
- Russian Federation Country
- Singapore Country
- South Korea Country
- Spain Country
- United Kingdom Country
- United States of America Country
- western Africa Transnational Region