公开(公告)号：US4412185A

公开(公告)日：1983-10-25

申请号：US274214

申请日：1981-06-16

Applicant: Roger E. J. Gerard

Inventor： Roger E. J. Gerard

IPC: H03F1/32 ,  H03F1/38 ,  H03F1/26

CPC classification number: H03F1/3235 ,  H03F1/38 ,  H03F2201/3212

Abstract: A feedforward amplifier is designed to exhibit particularly linear transfer characteristics in which distortion signals introduced by the amplifier itself are monitored and the phase and amplitude characteristics of respective adaptive equalizers are modified to reduce any distortions at these points. A reference signal is injected directly into a main amplifying element so that it appears at the output terminal as though it were an amplified induced distortion. The characteristics of the amplifier are adaptively modified to eliminate the reference signal from the output signal.

Abstract translation: 前馈放大器被设计为表现出特别的线性传输特性，其中由放大器本身引入的失真信号被监视，并且相应的自适应均衡器的相位和幅度特性被修改以减少这些点处的任何失真。 将参考信号直接注入主放大元件，使其出现在输出端，就好像它是放大的诱导失真一样。 自适应地修改放大器的特性，以消除输出信号的参考信号。