Ionospheric Scintillation Observations in Singapore using a High Gain Antenna and SDR
This paper presents an analysis of ionospheric scintillation data collected using a high gain antenna and software defined radio (SDR) data collection systems. The objective is to investigate GPS carrier phase variations during deep fading, which is often associated with strong equatorial scintillation. The data was collected in Singapore on April 15, 2015. Software-defined RF front ends and commercial ionospheric scintillation monitoring (ISM) receivers are used in this experiment. However, only a mild and a moderate scintillation event were captured during the experiment. Carrier tracking results for both events are discussed. Comparative analysis on the impact of processing methods, multipath effects, and sampling frequency reduction methods on data collected using the high-gain antenna and conventional antenna are presented.