desired signal

基本解释

Normal mode noise can seriously affect measurements unless steps are taken to minimize the amount added to the desired signal.
如果不采取措施将叠加到信号上的串模噪声减到最小，串模噪声会对测量产生严重的影响。
The desired signal in the auxiliary antennas may cause angle measurement error by using conventional adaptive sidelobe cancellation method.
使用常规自适应旁瓣对消方法，辅助天线中的期望信号会导致测角误差；
It is noted that the minimum mean square error (MMSE) detector often loses phase to lock a desired signal when the desired signal dips into a deep fade.
在实际通信系统中当信号处于深衰落时，最小均方误差（ MMSE）检测器经常失去对信号的相位跟踪。

Electrodes attached to the brain of a host "encoder" rat in Brazil processed the motor-oriented mental activity for a desired behavior, such as pressing a lever on cue, and converted it into a signal that was then received by a "decoder" rat as far away as Duke's US campus.
ENGADGET

期望信号
In the above-mentioned adaptive algorithms, the desired signal is assumed to be known to the receiver.
以上自适应方法的不足是需要期望信号。
有用信号