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引用本文：

马薇薇,黄其华,安建平.基于DSP+FPGA的扩频接收机快捕技术[J].电讯技术，2003，43（4）：68 - 71. [点击复制]
.Fast Acquisition in PN Code Receiver with DSP+FPGA Technology[J].，2003，43（4）：68 - 71. [点击复制]

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基于DSP+FPGA的扩频接收机快捕技术

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摘要:

提出一种在接收信号具有显著的多普勒频移的不确定性条件下,采用全数字的、适宜于扩频码和载波快速同步的新型扩频接收机结构。该接收机能在极短时间内建立快速同步,有效地实现实时突发通信。

关键词: 直接序列扩频,接收机,DSP,FPGA,BPSKDS

DOI：10.3969/j.issn.1001-893X.

修订日期：2002-10-22

基金项目:

Fast Acquisition in PN Code Receiver with DSP+FPGA Technology

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Abstract:

In order to accommodate the platform dynamics, the effects of Doppler must be taken into account. This paper brings forward a new kind of digital and practical PN code receiver. In software, with the advanced DSP FPGA technology and the algorithm of FFT to synchronize Doppler, the authors implement a in coherent carrier demodulating receiver, so that the system may achieve PN acquisition and demodulate data timely, and engineers can renovate or upgrade the software on the chips without remodeling the hardware.

Key words: DSSS,Receiver,DSP,FPGA,BPSK/DS