| 基于Z域的时变加权参差MTI滤波器设计方法的研究 |
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| 引用本文： | 朱德智,闫冯军.基于Z域的时变加权参差MTI滤波器设计方法的研究[J].中国电子科学研究院学报,2009,4(3). |
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| 作者姓名： | 朱德智 闫冯军 |
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| 作者单位： | 中国电子科技集团公司第38研究所,合肥,230031 |
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| 摘 要： | 动目标显示（MTI）是提高雷达在杂波背景下的检测概率的一种重要方法，而参差MTI还具有能改善盲速的优点，但是由于其采样是参差的，因而难以得到其性能函数的解析表达式。根据数字雷达的特点，提出了一种基于Z域的参差MTI滤波器的性能分析方法，推导了其传输函数的解析表达式，并应用传输函数得到了一种时变加权MTI滤波器权系数的计算方法。
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| 关 键 词： | 参差MTI 传输函数 时变加权 |
Research on the Method to Design Time Varying Weighting Stagger MTI Filter Based on Z-domain |
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| ZHU De-zhi,YAN Feng-jun.Research on the Method to Design Time Varying Weighting Stagger MTI Filter Based on Z-domain[J].Journal of China Academy of Electronics and Information Technology,2009,4(3). |
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| Authors: | ZHU De-zhi YAN Feng-jun |
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| Affiliation: | The 38th Research Institute of CETC;Hefei 230031;China |
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| Abstract: | Moving Target Indicator(MTI) is one of the important methods to improve the detectability of radars in clutter background.And stagger MTI filters have advantage of improving the performance of blind speed.However,it is difficult for MTI to get performance function due to sampling.In this paper,we deduce the analytical expression of transfer functions of stagger MTI filters based on Z-domain according to digital radar's characteristics.Furthermore,a new method of calculating the weight of time varying weight... |
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| Keywords: | stagger MTI filter transfer function time varying weighting |
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