High speed Chirp BOK square law detection and equalization in multipath channel
Liang Dong-shen · Jisuanji yingyong yanjiu · 2013
In order to improve anti-multipath interference debility of linear frequency modulation( Chirp) binary orthogonal keying( BOK),this paper proposed an algorithm emploied square law detection and equalization. Square law detection could resist the influence on pulse compression caused by frequency offset and phase offset,to low complexity and enhance robust,its performance reduction was less than 0. 2 dB in the condition of high frequency offset and doppler frequency shift extension.This paper analyzed the equalization model of BOK square law detection,demonstrated the feasibility of the equalization and corroborated the performance of equalization and detection in multipath channel with high frequency offset and doppler frequency shift extension. The simulation results indicate that introducing square law detection and equalization can efficiently improve system performance.