Title :
An interference suppression algorithm based on a novel MDCFT method for DSSS system
Author :
An Yingjie ; Tian Bin ; Sun Yongjun
Author_Institution :
State Key Lab. of Integrated Service Networks, Xidian Univ., Xian
Abstract :
Focusing on the interference suppression of Linear Frequency Modulation (LFM) with non-integral parameters in Direct Sequence Spread Spectrum (DSSS), this paper presents a Novel Modified Chirp-Fourier Transform (NMDCFT), which efficiently overcomes the mismatching of MDCFT in non-integral parameters. An efficient algorithm with low computational complexity based on this transform for the jamming migration is proposed. The theory analysis and simulating results show that the algorithm can efficiently deal with mono-component LFM, multi-component LFM, and the mixture of multi-component LFM and multi-component sinusoid jamming.
Keywords :
Fourier transforms; computational complexity; frequency modulation; interference suppression; spread spectrum communication; computational complexity; direct sequence spread spectrum; interference suppression algorithm; jamming migration; linear frequency modulation; multi-component sinusoid jamming; novel modified chirp-fourier transform; theory analysis; Algorithm design and analysis; Chirp modulation; Computational complexity; Discrete transforms; Fourier transforms; Interference suppression; Jamming; Sampling methods; Signal processing algorithms; Spread spectrum communication;
Conference_Titel :
Signal Processing, 2008. ICSP 2008. 9th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2178-7
Electronic_ISBN :
978-1-4244-2179-4
DOI :
10.1109/ICOSP.2008.4697503
