| 一种线性调频信号参数估计实时系统的设计 |
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| 引用本文： | 华旭东,臧小刚,唐斌.一种线性调频信号参数估计实时系统的设计[J].信息技术,2007,31(5):159-161,165. |
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| 作者姓名： | 华旭东 臧小刚 唐斌 |
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| 作者单位： | 上海交通大学电子系,上海,200240 |
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| 摘 要： | 首先简要分析了线性调频信号的特点和参数估计方法,提出了一种基于相关解调、STFT和最大似然估计的参数估计方法。该方法结合了各种方法的优点,在计算量小的情况下得到了比较高的估计精度,通过分析指出使用该方法设计的系统是在现有硬件条件下可实现的实时参数估计系统,并给出了该方法的具体步骤和方针结果。
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| 关 键 词： | 线性调频信号 解线性调频 短时傅里叶变换 最大似然估计 |
| 文章编号： | 1009-2552（2007）05-0159-03 |
| 修稿时间： | 2006-10-17 |
Design of real - time parameter estimation system for LFM signal |
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| HUA Xu-dong,ZANG Xiao-gang,TANG Bin.Design of real - time parameter estimation system for LFM signal[J].Information Technology,2007,31(5):159-161,165. |
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| Authors: | HUA Xu-dong ZANG Xiao-gang TANG Bin |
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| Institution: | Electronic Engineering Department, Shanghai Jiaotong University, Shanghai 200240, China |
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| Abstract: | In this paper, firstly, the features and method of parameter estimation of LFM signal are summed up. Then an estimation method based on autocorrelation, STFT and MLE is proposed. This method combines the advantages of these methods and gets high precision with reduction of computation. Simulation result shows that the system based on this method is a realizable real - time estimation system. The procedures and charts of this method are given. |
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| Keywords: | LFM signal deehirping STFT maximum likelihood |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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