子波高分辨谱估计方法及其在毫米波雷达目标一维距离成像中的应用
WAVELET HIGH RESOLUTION SPECTRUM ESTIMATION METHOD AND ITS APPLICATIONS IN mmW RADAR TARGET PROFILE
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摘要: 文中研究了一种子波谱估计方法。将该方法用于实际的毫米波雷达目标一维距离成像背景之下,在信号采样频率、采样数据长度相同时,可以获得像分辨率高于相同条件下FFT方法的一维距离像,从而可以对一维距离像进行高分辨地分析,在实际应用中具有一定的意义。Abstract: This paper studies a method using wavelet transform to estimate the signals spec-trum.The method is applied to the practical MMW radar targets echo signals,and on the condition of the same sampling frequency and sampling data length,it can achieve one dimen-sional range profile with profiles resolution superior to FFTs,so the one dimensional range profile of targets can be analyzed with high resolution,there is certain significance in the prac-tice.
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张亮.毫米波导引头目标识别与实时处理研究:[博士学位论文].长沙:国防科技大学研究生院,1997.[2]王建忠.小波理论及其在物理和工程中的应用.数学进展, 1992,21(3),289316.[3]赵松年.子波变换与子波分析.北京:电子工业出版社, 1996,第二章,第三章.[4]Combes J M,Grossman A,Tchamitchian P.Eds.,Wavwlets:Time-Frequency Methods and Phase Space.Berlin:Springer,IPTI,1989,298-304.
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