高动态环境下B1C捕获算法研究  

Research on B1C Acquisition Algorithm in High Dynamic Environment

作　　者：王西夺 冀云成 刘文魁 吴涛[2] WANG Xiduo;JI Yuncheng;LIU Wenkui;WU Tao(CETC Key Laboratory of Aerospace Information Applications,Shijiazhuang 050081,China;Unit 61768,PLA,Sanya 572099,China)

机构地区：[1]中国电子科技集团公司航天信息应用技术重点实验室,河北石家庄050081 [2]中国人民解放军61768部队,海南三亚572099

出　　处：《无线电工程》2020年第9期754-761,共8页Radio Engineering

基　　金：中国电子科技集团公司航天信息应用技术重点实验室基金项目(SXX19629X060)。

摘　　要：针对高动态环境下B1C信号复杂的特点和捕获的复杂性,提出一种基于PMF+FFT的DSB BPSK-Like的捕获算法。从功率损失、资源消耗、采样率等方面,对比分析了SSB BPSK-Like、DSB BPSK-Like和ASPeCT三种BOC去模糊捕获方法,采用DSB BPSK-Like捕获方法进行电路框架搭建和参数设计。仿真分析表明,当输入功率-138 dBm,多普勒范围±45 kHz时,该算法可以有效完成快速捕获。Considering the complex characteristics and acquisition complexity of B1C signals in high dynamic environment,a B1C signal acquisition algorithm based on PMF+FFT and DSB BPSK-Like method is proposed.In terms of the power loss,resource consumption and sampling rate,three BOC unambiguous acquisition methods,SSB BPSK-Like,DSB BPSK-Like and ASPeCT,are compared and analyzed.The DSB BPSK like acquisition method is used for circuit frame construction and parameter design.The simulation results show that the proposed algorithm achieves fast acquisition effectively when the input power is-138 dBm and the Doppler range is±45 kHz.

关 键 词：B1C 高动态 PMF+FFT DSB BPSK-Like 参数设计 

分 类 号：TP301[自动化与计算机技术—计算机系统结构]