微波成象中多采样率信号预处理方法
AN EFFICIENT MUL TIRATE PREPROCESSING TECHNIQUE FOR MICROWAVE IMAGING
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摘要: 在实际微波成象系统中,其模糊成象窗口往往远大于目标成象窗口。据此我们提出一种有效的成象前多采样率预处理方法。它可以很好地压缩原始频域数据,降低成象处理数据量和对计算机存储空间的要求,提高数字成象处理效率。为验证该方法的可行性,文中最后给出了对微波暗室采集数据的处理结果。Abstract: A effective multirate preprocessing technique for microwave imaging is presented. This technique has the advantages of largely compressing the original collected spectral data and reducing computational complexity of some imaging alogrithms. Also, the preprocessed spectral data is suitable for off-line superresolution imaging processing.
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