双门限自适应调整PN码捕获及其性能分析

Design and analysis of DS code acquisition based on double threshold adaptive decision

基于双重驻留搜索策略提出了一种双门限自适应调整的直接序列扩频伪随机(PN)码捕获方法,并分析了其主要性能。理论分析和计算机仿真结果表明:此方法的性能优于恒虚警概率(CFAR)检验,可以适应通信环境的变化。

An acquisition of pseudo-noise(PN) sequences using double adaptive threshold decision was presented for DSSS system in this paper. And, its performance based on double dwell acquisition was analyzed. It has better performance than CFAR and can be used in various mobile communications environment, which has been proved by theoretical analysis and computer simulations.