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A new technology of signal processing for medical ultrasonic imaging, thecoherent processing, is introduced. The technology makes use of the coherence betweensignals of different channels and, thus, improves the space resolution. 本文介绍一种新的医学超声成象处理方法──相干处理这种方法保留和利用了不同通道中信号的相干性,因此能增强图象的空间分辨率,改进图象的质量 For analyzing marine underwater noise system by using multiinputs-output model analytical method of contribution of inputs to output in the sense of network and time domain was given.Secondly,normalizing processing for input output covariance matrix was derived.Finally,processing of patial coherence of contribution of inputs to output was presented.Application of the method to real data can see. 本文通过对采用多输入输出模型的舰艇水下噪声系统的分析 ,给出时域处理的输入对输出贡献网络解的方法 ;其次 ,给出输入输出协方差矩阵的归一化处理 ;最后给出输入对输出贡献的偏相干处理。方法对实际数据的应用可参见文献[3]。 |
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