Analysis of a differentially coherent spread-spectrum acquisition receiver

M. Zarrabizadeh, E. Sousa
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引用次数: 3

Abstract

Differentially coherent detectors for acquisition of BPSK direct sequence spread-spectrum signals on an AWGN channel are analyzed. Under the random code sequence assumption, an exact analysis of the differentially-coherent detection performance for both full period correlation (FPC) and partial period correlation (PPC) is carried out and the results are compared with those of classical non-coherent detection. Finally the mean acquisition times for both single-dwell and multiple-dwell acquisition schemes are compared with their non-coherent counterparts. An improvement of 5 dB in the performance of the receiver is achieved.
差分相干扩频采集接收机的分析
分析了差分相干检测器在AWGN信道上采集BPSK直接序列扩频信号的方法。在随机码序列假设下,对全周期相关(FPC)和部分周期相关(PPC)的差分相干检测性能进行了精确分析,并与经典非相干检测结果进行了比较。最后,将单驻留和多驻留捕获方案的平均捕获时间与非相干捕获方案进行了比较。接收机的性能提高了5db。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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