loading page

An effective method to reject interferences for GPS receivers
  • ZHAO Shen,
  • DAI weihua,
  • Huang Zhigang
Hunan University of Technology and Business

Corresponding Author:[email protected]

Author Profile
DAI weihua
National Digital Switching System Engineering and Technological Research Center
Author Profile
Huang Zhigang
National Key Laboratory on Blind Signal Processing
Author Profile


An improved time-frequency domain (TFD) method is proposed to reject interferences for Global Positioning System (GPS) receivers. The conditional TFD methods generally detect interferences through spectrum analysis, and reject them by filtering. Actually, the detection- rejection accuracy is always within the limit of the spectrum resolution. The present TFD method combines the FFT technique with an adaptive notch filter (ANF). Some initialized interference frequencies are detected first by FFT, and further updated by ANF. Numerical simulation results show that the present method could hence the anti- jamming capability of GPS receivers.