Method, apparatus, system for clipping signal and signal radiation system

The present invention discloses a method for clipping a signal, comprising: sampling the input signal and from the detected exceeds the preset threshold of the maximum signal peak point, maximum peak point which will signal to the signal sampling point as a center clipped signal to be ; the maximum peak point of the signal with a preset clipping coefficient obtained by multiplying the clipping noise signal; the signal plus noise superimposing the cut reverse be clipped signal clipping process is completed. The present invention also discloses a signal clipping apparatus, system, and signal transmission system. Signal clipping method, apparatus, system and signal transmission system of the present invention, a clipping process to achieve a maximum peak removal point signal of the input signal, which is simple in logic design, may be achieved than the peak signal in the case where the hardware resource optimization inhibition, thereby reducing the power amplifier output power and efficiency of the pressure.