| 十二通道GPS信号发生器的硬件设计 |
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| 作者姓名： | 陆娟 常青 张其善 张军 |
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| 作者单位： | 北京航空航天大学电子工程系 北京100083
(陆娟，常青，张其善)，北京航空航天大学电子工程系 北京100083(张军) |
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| 基金项目： | 国家自然科学基金资助项目 (批准号 :60 0 2 70 0 1 ) |
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| 摘 要： | 分析十二通道 GPS信号发生器的系统结构 ,提出由计算机完成信号处理、PCI板卡完成信号调制的设计形式 ,并详细介绍 PCI板卡上 DSP和 FPGA的具体设计方法和各器件的选择考虑 ,分析 NCO主要参数的计算方法以及数字量化带来的系统误差
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| 关 键 词： | 信号发生器 数字调制 GPS DSP FPGA |
Hardware Design of a Twelve-Channel Digital GPS Simulator |
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| Authors: | Lu Juan Chang Qing Zhang Qishan Zhang Jun |
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| Institution: | Lu Juan Chang Qing Zhang Qishan Zhang Jun |
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| Abstract: | With the purpose of testing the performance of GPS receivers,a high dynamic GPS signal simulator is needed that can be used to simulate the real GPS signals under all kinds of the conditions.In this paper,the system structure of the high dynamic GPS simulator,and the hardware design scheme is described in which a computer is used to accomplish the signal processing and the PCI board is used to finish the signal modulation.The selections of all the devices in the PCI card are discussed and the detailed designs of DSP and FPGA are introduced.The calculation methods of NCO moudle's parameters is presented and the system errors coming from digitalization is analysed too. |
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| Keywords: | Subject terms Signal generators Digital modulation GPS DSP FPGA |
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