The traditional methods of increasing the dynamic range of the receivers , such as sensitivity time control ( stc ) , automatic gain control ( agc ) , and band - pass intermediate frequency ( if ) limiting , are researched . it is pointed out the limitation of the traditional technologies in increasing the dynamic range in wideband digital ew ( 3 )研究了動態(tài)范圍的相關(guān)參數(shù),分析了擴大接收機動態(tài)范圍的常規(guī)方法,如靈敏度時間控制、自動增益控制、中頻限幅器和對數(shù)放大器等,并分別指出常規(guī)方法應用于寬帶數(shù)字ew接收機的局限性。
Sensitivity time control (STC) is used to attenuate the very strong signals returned from nearby ground clutter targets in the first few range gates of a Radar receiver. Without this signal attenuation, the receiver would routinely saturate due to the strong signals.