The results demonstrate the cross correlation filter not only can suppress random noise in GPR signal but also confirm exactly the onset of reflection wave.
结果表明：应用该文所介绍的处理方法不但能有效压制探地雷达信号中的随机干扰而且能精确确定反射波的起跳点。
To obtain photoelectric signal of the photoelectric speed sensor, tracking to filtering narrow band random base-wave which is output, voltage wave beforehand transaction and application are expounded.
阐述了光电式速度传感器获取光电信号，跟踪滤波输出的随机窄带基波信号、波形预处理及应用。
According to the signal can be divided into sine wave signal, function (wave) signals, pulse signals and random signal generator, and other four major categories.
按信号波形可分为正弦信号、函数(波形)信号、脉冲信号和随机信号发生器等四大类。
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