Analysis on the Performance of Anti-Narrowband Interference of GNSS Receiver in Time Domain

摘要

Starting from the actual demand for eliminating narrowband interference signals common in GNSS receiver, this brief has described basic principles of adaptive filter first based on LMS algorithm, and then analyzed the performance of anti-narrowband interference receiver with bilateral interpolation filter based on above principles. Finally, simulation results shows that compared with that without interference suppression processing, when JSR is 35 dB, the Eb/N0 can improve by 5 dB by this method; and when compared with theoretical values without interference, the Eb/N0 deteriorates by 1 dB. With the increase of interference strength, the interference suppression effect by this method is more significant.