| FFT-MTD滤波器组优化设计与仿真 |
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| 引用本文： | 周亚飞,赵修斌,邹鲲.FFT-MTD滤波器组优化设计与仿真[J].现代防御技术,2011,39(2). |
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| 作者姓名： | 周亚飞 赵修斌 邹鲲 |
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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 |
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| 基金项目： | 陕西省自然科学基础研究计划项目 |
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| 摘 要： | 介绍了用FFT算法实现雷达信号动目标检测(MTD)的方法,为提升MTD在强杂波环境下的检测性能,对加权FFT优化MTD时窗函数的选取进行了讨论,比较了6种窗函数加权时FFT等效多普勒滤波器组的幅频特性和改善因子,得出了适合于MTD的最佳窗函数,并针对某型雷达信号体制进行了仿真分析和验证,结果表明优化方法增强了MTD在杂波背景下的检测性能.
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| 关 键 词： | 雷达信号处理 快速傅里叶变换 动目标检测 杂波抑制 加窗 |
Optimized Design and Simulation for FFT-MTD Filter Banks |
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| ZHOU Ya-fei,ZHAO Xiu-bin,ZOU Kun.Optimized Design and Simulation for FFT-MTD Filter Banks[J].Modern Defence Technology,2011,39(2). |
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| Authors: | ZHOU Ya-fei ZHAO Xiu-bin ZOU Kun |
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| Institution: | ZHOU Ya-fei,ZHAO Xiu-bin,ZOU Kun(AFEU,Telecommunication Engineering Institute,Shaanxi Xi'an 710077,China) |
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| Abstract: | The method of detecting moving target in radar signal processing system with FFT is introduced.In order to improve the performance of MTD in strong clutter environment,the optimal window for FFT-MTD is discussed.The frequency responses and improving factors of MTD filter banks weighted with 6 kinds of window functions are compared and the optimal window function suitable for MTD is gained.The simulation result indicates that the MTD performance is improved with the optimized design. |
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| Keywords: | radar signal processing fast Fourier transformation(FFT) mouing target detection(MTD) clutter suppression windowing |
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