Based on acoustic characteristics of cough, using the short time zero crossing ratio ( ZCR) identifies the suspicious coughs in order to get the threshold of short time energy.
利用过零率来定位可疑咳嗽,从而确定能量阈值。
The ispLSI design of constant false alarm ratio threshold judgement circuit
恒虚警率门限判决电路的ispLSI设计
The simulation results show that the semi-soft threshold denoising method reduces the noise effectively, improves the ratio of signal and noise, retains the detail of image and obtains the minimum mean square deviation. It finds some application in engineering.
仿真结果表明:半软阈值去噪方法有效地抑制了噪声,提高了信噪比,同时保留了图像细节,获得了最小的均方差,具有一定的应用价值。
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