[1]李跃华,李兴国.基于子波变换谱估计的频率步进毫米波雷达目标成像[J].南京理工大学学报(自然科学版),1999,(02):41-44.
 Li Yuehua Li Xingguo.The Imaging of Target Range Profiles of Step Frequency MMW Radar Based on Spectrum Estimation with Wavelet Transformation[J].Journal of Nanjing University of Science and Technology,1999,(02):41-44.
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基于子波变换谱估计的频率步进毫米波雷达目标成像()
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
期数:
1999年02期
页码:
41-44
栏目:
出版日期:
1999-04-30

文章信息/Info

Title:
The Imaging of Target Range Profiles of Step Frequency MMW Radar Based on Spectrum Estimation with Wavelet Transformation
作者:
李跃华李兴国
南京理工大学电子工程与光电技术学院, 南京210094
Author(s):
Li Yuehua Li Xingguo
School of Electronic Engineering and Optoelectronic Technology,NUST, Nanjing210094
关键词:
雷达信号 图象处理 估计 子波变换
Keywords:
radar signals image processing spect roscopy est imat ions wavelet t ransform
分类号:
TN957.52
摘要:
根据子波变换所具有良好的时间-频率局域性和逼近性,研究基于子波变换谱估计的频率步进毫米波雷达目标成像方法。由于选用了波动性、衰减性和带通性能好的已调高斯函数作为子波基函数构成一组特性较理想的带通滤波器,对信号进行正交处理,其子波变换同时给出了同相和正交分量。通过信号的功率谱估计,从而获得更好的雷达目标一维距离像。仿真结果表明,这种方法是有效的
Abstract:
Based on the t ime frequency localizat ion and approach of wavelet t ransform, a study is made on the imaging of targ et rang e prof iles of step frequency MMW radar w ith w avelet. The band-pass filtering funct ion is implemented using modulated Gaussian w avelet transform. T he signal can be orthogonalized the wavelet transform can provide the in-phase and quadrature vector. The method can obtain good range profiles. The simulative result s indicate that spect rum estimation based on w avelet transformat ion has bet ter dist inguishing rate.

参考文献/References:

1 Sinsky A I . Error analysis of a quadrature coher ent detector processor. IEEE Trans, 1974, AES( 10) : 880~ 883
2 崔锦泰.小波分析导论.西安: 西安交通大学版社, 1995. 89~ 120
3 Mallat S A. Theo ry fo r mutiresolution signal decomposition: the wavelet representation. IEEE T rans PAMI, 1989, 11( 7) : 674~ 693
4 Mallat S. Sing ularit y detection and processing with w avelet. IEEE Trans on IT , 1992, 38( 2) :617~ 643
5 Wechner D R. High resolution radar. Boston : Artech House, 1987. 42~ 182

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备注/Memo

备注/Memo:
李跃华 男 38 岁 副教授
更新日期/Last Update: 2013-03-29