| GPS信号模拟器中x/sin(x)数字滤波器的设计和实现 |
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| 作者姓名： | 朱宇虹 常青 张其善 |
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| 作者单位： | 北京航空航天大学电子信息工程学院 北京100083
(朱宇虹，常青)，北京航空航天大学电子信息工程学院 北京100083(张其善) |
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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： | 结合一个实际 GPS信号模拟器数字中频系统的指标要求 ,介绍用 matlab设计窄带 x/sin( x)数字滤波器的方法 ,并在 Xilinx公司的 FPGA中实现所设计的 7阶 FIR滤波器 ,所设计的滤波器输出延迟为 8个时钟周期 ,后仿真的最高速度大于 1 2 0 MHz
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| 关 键 词： | 数字滤波器 D/A转换器 GPS信号模拟器 |
Design and Implementation of x/sin(x)Digital Filter in A GPS Signal Simulator System |
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| Authors: | Zhu Yuhong Chang Qing Zhang Qishan |
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| Institution: | Zhu Yuhong Chang Qing Zhang Qishan |
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| Abstract: | A narrow band FIR digital filter for compensating the x/sin(x) spectrum distortion occurring in D/A converters has been designed with the help of matlab.This filter was designed according to the requirement of a GPS signal simulator system.The designed 7-tap filter was implemented in a Xilinx's FPGA.The simulation results show that the sampling rate could be over 120MHz,and the latency of the filter was only 8 clock cycles. |
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| Keywords: | Digital filter Digital-to-analog coverter GPS signal simulator |
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