Non - linearamplifier on the transmIt 'signal of the impact is closely related with the modulation method.
非线性放大器对发射信号的影响,与调制方式密切相关。
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The advantage of the switching amplifier is the high efficiency, but the distortion is still bigger than the linearamplifier because of the switching working and it's non-linear.
As for the non-linear negative feedback program, it is mainly composed of the main amplifier and nonlinear feedback loop, and it has adaptive performance.