signal amplitude

例句：

1. 1. The radar system uses a high-frequency signal to detect and track objects in the air.
   雷达系统使用高频信号来探测和跟踪空中物体。
2. 2.The amplitude of the signal is measured in decibels.
   信号的振幅以分贝为单位测量。
3. 3. In communication systems, signal amplitude is crucial for maintaining clear audio quality.
   在通信系统中，信号幅度对于保持清晰的音频质量至关重要。