peak signal

例句：

1. 1. The peak signal is the highest point in a waveform.
   峰值信号是波形中的最高点。
2. 2. The peak signal was used to determine the direction of the wind.
   峰值信号被用来确定风的方向。
3. 3.The peak signal was detected at a distance of 50 meters from the source.
   峰值信号在距离源50米处被检测到。