Crest factor reduction

A system (200) for crest factor reduction (CFR) includes a peak detector (205) configured to receive an input signal (xk); a running maximum filter (210) configured to generate a scaling factor based on a window gain (Gk) and a filter length, wherein the window gain (Gk) is based on the input signal (xk) and a threshold value (T); a window CFR gain filter (215) configured to generate a gain correction (Fk) based on the scaling factor and the filter length; a delay (225) configured to delay the input signal (xk) to generate a delayed input signal; a multiplier (230) configured to multiply the gain correction (Fk) by the delayed input signal to obtain a peak correction value; and an adder (235) configured to determine an output signal (yk) based on the peak correction value and the delayed input signal. 种用于峰值因数抑制(CFR)的系统(200)包括波峰检测器(205)，其被配置为接收输入信号(x)；运行最大值滤波器(210)，其被配置为根据窗口增益(G)和滤波器长度生成定标因数，其中窗口增益(G)是根据输入信号(x)和阈值(T)得到的；窗口CFR增益滤波器(215)，其被配置为根据定标因数和滤波器长度生成增益校正(F)；延时器(225)，其被配置为对输入信号(x)进行延时处理，生成延时输入信号；乘法器(230)，其