一种改进小波变换相关法去除机载雷达图像斑点噪声的应用

A Correlative Method of Suppress Speckle in Airborne SAR Images Based on Wavelet Transform

ZHANG Hong-fei^1,2, ZHENG Zi-cai³, ZHAO Kai^1,2, CHEN Ren-yuan⁴, WANG Sheng-yuan^1,2

1. Northeast Institute of Geography and Agricultural Ecology, Changchun 130012, China; 2. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China; 3. Department of Science and Engineering, Tongliao Vocational College, Tongliao 028045, Inner Mongolia Autonomous Region, China; 4. China Electronics Technology Group Corporation No.38 Research Institute, Hefei 230031, China

Received:2005-09-02 Revised:1900-01-01 Online:2006-01-26 Published:2006-01-26
Contact: ZHANG Hong-fei

Abstract

Abstract: This paper covers a correlative method of suppressing speckle in high resolution airborne SAR images. Firstly, the advantage of the wavelet transform is pointed out. Secondly, we studied the characteristic of the high resolution airborne SAR images and presented a method based on wavelet transform. We use the complex wavelet transform in this method. Finally, the experiment results show that this technique presents superior results than those obtained from other methods.

Key words: speckle noise, high resolution airborne SAR images, wavelet transform, complex wavelet transform

CLC Number:

TP391.41

ZHANG Hong-fei, ZHENG Zi-cai, ZHAO Kai, CHEN Ren-yuan, WANG Sheng-yuan. A Correlative Method of Suppress Speckle in Airborne SAR Images Based on Wavelet Transform[J].J4, 2006, 44(01): 78-82.

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A Correlative Method of Suppress Speckle in Airborne SAR Images Based on Wavelet Transform

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