| 基于Laguerre滤波的雷达通道均衡方法 |
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| 引用本文： | 冉涌,陈立万,李洪兵,陈强.基于Laguerre滤波的雷达通道均衡方法[J].火力与指挥控制,2011,36(10). |
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| 作者姓名： | 冉涌 陈立万 李洪兵 陈强 |
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| 作者单位： | 1. 电子科技大学电子工程学院,成都,610054
2. 重庆三峡学院,重庆,404100 |
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| 摘 要： | 传统雷达通道均衡采用自适应FIR滤波器作为均衡器,当理想脉冲响应序列很长时,其逼近效果不理想,计算量大。Laguerre滤波器兼具FIR和IIR结构的优点,通过在单位圆内固定一极点保证了系统的稳定,又因为引入了全通滤波环节,使其能够用较少的阶数逼近长脉冲序列响应。推导了Laguerre滤波器的自适应算法,并将其应用于雷达通道均衡中,仿真实验也证明了它与传统的FIR结构相比,用更少的系数获得了更优的对消比,达到了更好的均衡效果。
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| 关 键 词： | 通道均衡 Laguerre滤波 长脉冲序列 对消比 |
Adaptive Equalization for Channels of Digital Array Radar Based on Laguerre Filters |
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| RAN Yong,CHEN Li-wan,LI Hong-bing,CHEN Qiang.Adaptive Equalization for Channels of Digital Array Radar Based on Laguerre Filters[J].Fire Control & Command Control,2011,36(10). |
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| Authors: | RAN Yong CHEN Li-wan LI Hong-bing CHEN Qiang |
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| Institution: | RAN Yong1,CHEN Li-wan2,LI Hong-bing2,CHEN Qiang2(1.School of Electronic Engineering,University of Electronic Science and Technology,Chengdu 610054,China,2.Chongqing Three Gorges College,Chongqing 404100,China) |
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| Abstract: | Adaptive FIR filters are used as the equalizer in traditional radar channel equalization.However,it has poor performance and low efficiency when the ideal impulse response sequence is long.Laguerre filters combine the advantages of FIR and IIR structures,which ensure the system's stability through the fixation of a pole in unit circle,and have lower order because of the introduction of the all-pass filters.In this paper,the Laguerre adaptive filter algorithm is derived and applied in the radar channel equal... |
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| Keywords: | channel equalization Laguerre filters long-pulse sequence cancellation ratio |
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