zero-crossing method造句

• We achieve phase measurement using zero - crossing method
  用过零测相法实现了相位计算。
• As to the software , it realized feature extraction and target identification from the seismic signals of representative moving targets using the zero - crossing method in time domain
  软件采用时域上的过零算法对典型地面运动目标(如车辆、人员)的地震动信号进行特征提取，目标识别。