Noun:

1. the amplitude level of the desired signal

signalityn.意义重大；重要signaln.信号；标志v.(发信号)通知、表示adj.显著的signal specialty mark通信兵专业标号signal constellations信号星座图signal-wave evelope[电] 讯号波封signal unit alignment信号单元定位signal wiring diagram信号配线图signal - flow graph信号流图signal DOA estimation信号DOA估计signaling information信令信息signal current output信号电流输出signal transfer delay信号传送时延

1. Because each pixel in the array has its own gain value and zero signal level, the image would be very non-uniform without normalization.
   由于阵列中的每个像素有自身的增益值和零信号电平，没有经过标准化处理，图像很难是一致的。