With the SAR signal processing developing to the direction of high resolution and real-time processing, it has become a critical factor that providing high quality raw signal to image formatting stage.
随着SAR成像处理，向着高分辨率和实时化方向发展，能否为成像处理阶段提供高质量的原始信号，是系统设计成败的一个关键因素。
参考来源 - SAR实时信号预处理和高分辨率实时成像处理系统的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
原始信号原先是一个简单的正弦波。
尤其在对原始信号进行低次数平均的情况下，本降噪方法更具优越性。
The advantage of the method can be seen particularly as used to the data with low average times.
通过各频带的能量分析，才能获得较准确的频率特性，同时也可以得到原始信号的局部特征。
Through the energy analysis of different frequency bands, we can attain the blasting vibration signals' frequency identity and original signals' part character.
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