| 双通道雷达数据采集系统的设计与实现 |
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| 引用本文： | 李鹏,赵文武,张旭峰,王国庆.双通道雷达数据采集系统的设计与实现[J].电子测量技术,2007,30(4):122-124. |
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| 作者姓名： | 李鹏 赵文武 张旭峰 王国庆 |
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| 作者单位： | 国防科技大学,长沙,410073 |
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| 摘 要： | 针对雷达信号处理领域需要将雷达回波模拟信号数字化的需求,本文采用A/D专用芯片并行采样、FIFO数据缓存和FPGA时序控制的方法,设计并实现了一种双通道雷达数据采集系统,采样频率为220 MHz.系统实现简单,工作稳定.对系统进行的性能测试表明,I、Q双通道采集到的信号相位一致性能较好,A/D有效位数为6位以上,满足实际应用的需要,适用于高速数字信号处理领域.
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| 关 键 词： | A/D转换 数据采集 信噪比 有效位数 |
Design and implementation of a dual-channel radar data acquisition system |
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| Li Peng,Zhao Wenwu,Zhang Xufeng,Wang Guoqing.Design and implementation of a dual-channel radar data acquisition system[J].Electronic Measurement Technology,2007,30(4):122-124. |
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| Authors: | Li Peng Zhao Wenwu Zhang Xufeng Wang Guoqing |
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| Affiliation: | National University of defense Teehnology,Changsha 410073 |
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| Abstract: | Regarding the requirement of digitizing the radar echo, this paper presents a method, which includes A/D special chip sampling; FIFO buffers and FPGA controlling, to realize a dual-channel radar data acquisition system with 220MHz sample frequency. This system can be accomplished easily and work stably. The result of performance test shows that the inter-channel consistency of dual-channel sampling circuit is perfect and the ENOB of ADC is more than 6 bits, which satisfies the application requirement. The system can be applied in the field of high-speed digital signal processing. |
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| Keywords: | A/D converter data acquisition SNR ENOB |
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