如何对同一目标的多传感器获得的不同波段的图像数据进行有效融合 ,提高对检测目标检测的识别率 ,抑制每个传感器的检测噪声 ,降低检测信息不确定性 ,这是数据融合研究的重要课题之一 .本文介绍了一种基于小波变换的融合方法 ,并应用于四幅不同波段的 SAR图像的融合 ,取得了良好效果 . How to effectively fuse the image data of different wavelength bands obtained by the same target multi-sensor to improve the recognition rate of the detection target, suppress the detection noise of each sensor and reduce the uncertainty of detection information is an important issue in data fusion research This paper introduces a fusion method based on wavelet transform, and applies to four different bands of SAR image fusion, and achieved good results.