河北工业科技2017，Vol.34Issue(6)：395-401,7.DOI:10.7535/hbgykj.2017yx06002
基于FFT的突发扩频信号兼容快捕算法
Compatible fast acquisition algorithm for burst spread spectrum signal based on FFT
摘要
Abstract
An improved compatible fast acquisition algorithm for burst spread spectrum signal based on FFT is introduced for the imperfection of the traditional fast acquisition algorithm of burst spread spectrum signal that can't process different synchro-nization-head length adaptively and compatibly.According to the actual application feature of different duration signals,it takes advantage of that the synchronization sequences are aligned at the end and stores the code correlation results in the manner of matrixes.Then parallel processing is used to realize adaptive acquisition compatibly for burst spread spectrum signal.Mean-while,through the FFT operation of matrixes can realize complete coherent accumulation to improve the signal-to-noise ratio. Time-frequency parallel processing is used to improve processing efficiency, so as to make the most of optimizing the acquisitive performance of weak signals.The simulation result proves that the method can realize compatible and fast acquire-ment of different spread spectrum signals.The research pnvides an effective method for compatible and fast acquirement of different synchronization-head low signal-to-noise ratio signals.关键词
信号检测/突发扩频信号/兼容存储/傅里叶变换/并行处理/快速捕获Key words
signal detection/burst spread spectrum signal/compatible storage/FFT/parallel processing/fast acquisition分类
信息技术与安全科学引用本文复制引用
邢亚斌,王振岭,杨再秀..基于FFT的突发扩频信号兼容快捕算法[J].河北工业科技,2017,34(6):395-401,7.基金项目
国家重点研发计划项目(2016YFB0502402) （2016YFB0502402）
