Title :
Performance of combined SAW convolver/serial-search acquisition for DSSS system with single-tone jamming
Author :
Jiming, Lin ; Yin Suozhu ; Wenbo, Li
Author_Institution :
Indt. of Commun., Guilin Inst. of Electron. Technol., Guangxi, China
Abstract :
A new combined matched-filter serial search PS code acquisition scheme based on surface acoustic wave (SAW) convolver preamble processing is presented in which the correct detection of preambles results in a residual uncertainty of just a few code chips, to be searched sequentially and tracked. The performance for this scheme in AWGN and single-tone interference channel is studied, considering the noise in the local reference generator. The conclusion shows that the presence of noise in the reference signal has a stronger influence on preamble processing and mean acquisition time of a system than merely reinforcing the channel noise power
Keywords :
Gaussian channels; convolution; digital filters; interference suppression; jamming; matched filters; noise; pseudonoise codes; radiofrequency interference; search problems; spread spectrum communication; surface acoustic wave convolution; synchronisation; tracking filters; AWGN channel; DSSS system; channel noise power; code chips; combined SAW convolver/serial-search acquisition; combined matched-filter serial search PS code acquisition scheme; detection; local reference generator; mean acquisition time; noise; performance; reference signal; residual uncertainty; single-tone interference channel; single-tone jamming; surface acoustic wave convolver preamble processing; AWGN; Acoustic noise; Acoustic signal detection; Acoustic waves; Additive white noise; Convolvers; Gaussian noise; Interference channels; Surface acoustic waves; Uncertainty;
Conference_Titel :
Communication Technology Proceedings, 1996. ICCT'96., 1996 International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-2916-3
DOI :
10.1109/ICCT.1996.545200
