Research on GPS Receiver Antenna Gain and Signal Carrier-to-Noise Ratio
In this paper, the gain and gain pattern of GPS receiver’s antenna and the carrier-to-noise ratio of received signal are described. The concept of C/N 0 pattern is introduced. The relationship between the C/N 0 pattern and gain pattern is derived. The time variation and direction variation of atmospheric loss were determined initially. The concept of C/N 0 anomaly and the C/N 0 anomaly pattern were introduced. It would be shown that the orientation of passive interference could be determined with the C/N 0 anomaly pattern.
KeywordsGPS antenna gain pattern carrier-to-noise ratio C/N0 anomaly
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