| 幂变换在一维距离像目标识别中的作用分析 |
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| 引用本文： | 徐海丽,王洋.幂变换在一维距离像目标识别中的作用分析[J].现代雷达,2011,33(9):37-41. |
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| 作者姓名： | 徐海丽 王洋 |
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| 作者单位： | 南京电子技术研究所,南京,210039 |
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| 摘 要： | 幂变换是一种一维距离像非线性预处理方法,服从任意概率分布的随机变量经幂变换后更接近于高斯分布,为选用基于高斯分布的分类器提供了方便,因此对提高识别率有一定的作用。文中分析了在应用中为得到好的识别效果幂变换系数如何取值的问题。取不同的幂变换系数对多批飞机在不同噪声环境下的距离像进行幂变换,然后用径向基函数分类器进行分类。根据实测数据处理后的结果分析,为了提高识别率,应根据信号的信噪比选择幂变换系数对距离像进行预处理。
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| 关 键 词： | 幂变换 一维距离像 径向基函数分类器 |
Performance of Power Transform in High Resolution Range Profiles Target Identification |
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| XU Hai-li,WANG Yang.Performance of Power Transform in High Resolution Range Profiles Target Identification[J].Modern Radar,2011,33(9):37-41. |
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| Authors: | XU Hai-li WANG Yang |
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| Institution: | XU Hai-li,WANG Yang(Nanjing Research Institute of Electronics Technology,Nanjing 210039,China) |
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| Abstract: | Power transform is a nonlinear pretreatment method.Random variables which are obedient to any probability distribution are more close to Guass distribution after power transform,so that classifiers based on Guass distribution can be used.The recognition rate of high resolution range profiles can be improved obviously.It is mainly analysed that how we should decide the power transform coefficient in order to get good recognition results.The range profiles in different noise condition are processed using diff... |
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| Keywords: | power transform coefficient high resolution range profiles radial basis function classifier |
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