Three methods for analyzing and processing the laser scattering signal of bubbles in water, the thresholddetection, noise elimination processing and power spectral estimation, are put forward.
提出了阈值检测、降噪处理和功率谱估计三种分析和处理水中气泡激光散射信号的方法。
2
The selection of the optimal threshold of signaldetection.
信号检测的最佳门限选择;
3
Watermark signal of the right channel whose magnitude is limited below the audible threshold, is used to control the detection threshold.