北京航空航天大学学报 ›› 1998, Vol. 24 ›› Issue (5): 499-501.

• 论文 •    下一篇

一种数字化DS/BPSK扩频接收机

李三中, 张其善   

  1. 北京航空航天大学 电子工程系
  • 收稿日期:1997-04-14 出版日期:1998-05-31 发布日期:2010-11-18
  • 作者简介:28岁 博士生 100083 北京

Design of a Digital DS/BPSK Receiver

Li Sanzhong, Zhang Qishan   

  1. Beijing University of Aeronautics and Astronautics,Dept. of Electronic Engineering
  • Received:1997-04-14 Online:1998-05-31 Published:2010-11-18

摘要: 介绍一种新型数字化DS/BPSK(Direct Spread/Binary Phase Shife Keying)扩频接收机的设计.该接收机采用专用数字相关器为核心的硬件设计,并结合数字处理算法完成扩频信号的解调.技术上采用串并组合的伪码捕获、科斯特环载波跟踪、延迟锁定环伪码跟踪等方式,可通过软件算法灵活实现.该接收机具有综合性能强,及软件接口灵活的特点,可有效地应用于基于码分多址的多目标测控系统中.

Abstract: The design of a new digital DS/BPSK receiver is introduced and its key problems and fundmental principles involved are described in the paper.The dedicated large-scale intergrated circuit, combined with digital signal processing algorithm is adopted to implement demodulation of spread spectrum signal. It applies serial-parrallel combined PN code acquisiton, Costas phase-locked tracking loop and delay-lock tracking loop techniques. The receiver is characterized by excellent overall performance as well as flexible hardware and software interface.It can be efficiently used in multi-objects telemetry and control system based on code division multiple access.

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