Title :
Frequency-Space Domain Anti-Jamming Algorithm Assisted with Probability Statistics
Author :
Yongxing Du ; Yong Gao ; Jiangfan Liu ; Xiaoli Xi
Author_Institution :
Sch. of Autom. & Inf. Eng., Xi´an Univ. of Technol., Xi´an, China
Abstract :
Global positioning system (GPS) signal is weak and vulnerable. Using the frequency-domain notching filter cascaded with space domain filter can improve the anti-jamming ability of the GPS receiver. However, when the narrowband jamming falls in the wideband one, it is difficult to detect the narrowband jamming spurs correctly by fast Fourier (FFT) transform. In this paper, the probability statistics algorithm is proposed to help detect narrowband interference location in frequency spectrum. Numerical results show that the proposed algorithm performs well.
Keywords :
Global Positioning System; fast Fourier transforms; jamming; radio receivers; radiofrequency interference; spatial filters; statistical analysis; FFT transform; GPS receiver; fast Fourier transform; frequency spectrum; frequency-domain notching filter; frequency-space domain antijamming algorithm; global positioning system; narrowband interference location detection; narrowband jamming; probability statistics algorithm; space domain filter; Filtering algorithms; Frequency-domain analysis; Global Positioning System; Interference; Narrowband; Probability; Wideband; anti-jamming; frequency filtering; probability statistics algorithm; spatial filtering;
Conference_Titel :
Information Technology and Applications (ITA), 2013 International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4799-2876-7
