A Technique for Suppressing Periodic Linear Frequency Modulation Interference in PN Spread-Spectrum Systems

Author

Huan, Hao ; Tao, Ran

Author_Institution

Dept. of Electron. Eng., Beijing Inst. of Technol., Beijing, China

fYear

2010

fDate

17-19 Sept. 2010

Firstpage

557

Lastpage

559

Abstract

First, this paper analyzes the performance of the linear frequency modulation (LFM) interference in PN spread-spectrum communication systems. Second, in the light of suppressing the side-lobe of periodic LFM in fractional Fourier transform (FRFT) domain, a method combined transform-domain and time-domain is proposed, this method improves the processing gain and makes the distribution of the signal suppressed approximately Gaussian which is helpful for code acquisition. Finally, the simulation results show the method is valid.

Keywords

Fourier transforms; frequency modulation; interference suppression; spread spectrum communication; PN spread-spectrum communication systems; code acquisition; fractional Fourier transform domain; periodic LFM; periodic linear frequency modulation interference suppression; processing gain; side-lobe; signal distribution; time-domain; transform-domain; Bandwidth; Fourier transforms; Interference; Signal processing algorithms; Signal to noise ratio; Time domain analysis; Time frequency analysis; fractional Fourier transform; interference; periodic frequency modulation; suppressing;

fLanguage

English

Publisher

ieee

Conference_Titel

Pervasive Computing Signal Processing and Applications (PCSPA), 2010 First International Conference on

Conference_Location

Harbin

Print_ISBN

978-1-4244-8043-2

Electronic_ISBN

978-0-7695-4180-8

Type

conf

DOI

10.1109/PCSPA.2010.140

Filename

5636077