| 一种数字化DS/BPSK扩频接收机 |
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| 引用本文： | 李三中.一种数字化DS/BPSK扩频接收机[J].北京航空航天大学学报,1998,24(5):499-501. |
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| 作者姓名： | 李三中 |
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| 作者单位： | 北京航空航天大学 电子工程系 |
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| 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.
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| 关 键 词： | 接收机 伪随机码 数字锁定环 |
| 收稿时间： | 1997-04-14 |
Design of a Digital DS/BPSK Receiver |
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| Li Sanzhong,Zhang Qishan.Design of a Digital DS/BPSK Receiver[J].Journal of Beijing University of Aeronautics and Astronautics,1998,24(5):499-501. |
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| Authors: | Li Sanzhong Zhang Qishan |
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| Institution: | Beijing University of Aeronautics and Astronautics,Dept. of Electronic Engineering |
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| 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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| Keywords: | receiver pseudorandom codes digital phase locked loops |
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