题目：Innovative Radio Frequency Interference Detection Techniques for GNSS Receivers

报告人：孙克文 教授 通信所

时间：4月2日（周三）下午2:30

地点：逸夫楼508

简介： Radio Frequency Interference (RFI) detection in Global Navigation Satellite System (GNSS) is very important for both civil and military applications. A novel Choi-Williams transform (CWT) based time-frequency (TF) analysis algorithm has been proposed in the interference detection for GNSS receivers. The Choi-Williams kernel function is introduced to the Cohen’s class in order to attenuate the cross terms of the state of the art TF analysis interference detection techniques such as spectrogram and Wigner-Ville distribution (WVD). The proposed method is tested on Galileo E1 Open Service (OS) signals in sweep interference scenarios compared to the traditional TF approaches, improved TF localization properties and interference detection sensitivity have been achieved with the developed technique, verifying its effectiveness and validity for interference detection for GNSS receivers.

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