| 接收相参雷达相干检波改进设计与仿真 |
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| 引用本文： | 周亚飞,赵修斌,胡健生.接收相参雷达相干检波改进设计与仿真[J].兵工自动化,2010,29(10):6-8. |
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| 作者姓名： | 周亚飞 赵修斌 胡健生 |
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| 作者单位： | 空军工程大学,电讯工程学院,陕西,西安,710077;武警工程学院,陕西,西安,710086 |
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| 基金项目： | 陕西省自然科学基础研究计划项目，军队装备维修科学研究与改革项目 |
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| 摘 要： | 为提高传统雷达信号处理系统的性能,提出雷达中频信号数字正交解调和相参信号的提取方法。对接收相参雷达相干检波进行改进研究,采用中频采样和数字正交解调代替模拟相干检波器,采用数字混频滤波提取发射信号初始相位,并采用某型接收相参雷达实际采集信号进行了仿真验证。仿真结果表明：改进后雷达信号处理效果有明显提升,改进方案对早期雷达数字化改造和现代雷达信号处理系统设计具有借鉴意义。
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| 关 键 词： | 接收相参雷达 中频采样 正交解调 混频滤波 数控振荡器 |
| 收稿时间： | 2010/12/7 0:00:00 |
Quadrature Demodulation Improving Design and Simulation for Coherent-on-Receive Radar |
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| Zhou Yafei,Zhao Xiubin,Hu Jiansheng.Quadrature Demodulation Improving Design and Simulation for Coherent-on-Receive Radar[J].Ordnance Industry Automation,2010,29(10):6-8. |
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| Authors: | Zhou Yafei Zhao Xiubin Hu Jiansheng |
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| Affiliation: | Zhou Yafei1,Zhao Xiubin1,Hu Jiansheng2(1.College of Telecommunication Engineering,Engineering University of PLA Air Force,Xi’an 710077,China;2.College of Armed Police Engineering,Xi’an 710086,China) |
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| Abstract: | In order to improve the performance of signal processing system in traditional radar,the IF digital quadrature demodulation and the coherent signal getting method is introduced The improving method of coherent detection for coherent-on-receive radar is studied,analog coherent detector is replaced by IF sampling and digital quadrature demodulation,digital mixer and filter is used to get the original phase of transmitting signal.Simulation is made with real signal of coherent-on-receive radar,and the result i... |
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| Keywords: | coherent-on-receive radar IF sampling quadrature demodulation mixer and filter numerical controlled oscillator |
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