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首页 » 算法 » 非线性放大器对发射信号的影响,与调制方式密切相关。不同的调制方式,所得到的时域波形是不同的,如用于欧洲移动通信的GSM制式,该制式采用了高斯滤波的最小偏移键控(...

非线性放大器对发射信号的影响,与调制方式密切相关。不同的调制方式,所得到的时域波形是不同的,如用于欧洲移动通信的GSM制式,该制式采用了高斯滤波的最小偏移键控(...

于 2022-01-31 发布 文件大小:2.66 MB
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非线性放大器对发射信号的影响,与调制方式密切相关。不同的调制方式,所得到的时域波形是不同的,如用于欧洲移动通信的GSM制式,该制式采用了高斯滤波的最小偏移键控(GMSK),是一种相位平滑变化的恒定包络的调制方式,因此可以用非线性放大器来放大,不存在包络失真问题,也不会因为频谱再生而干扰邻近信道。 -Non-linear amplifier on the transmit signal of the impact is closely related with the modulation method. Different modulation methods, the resulting time-domain waveforms are different, such as for the European GSM mobile communications standard, the standard use of Gaussian minimum shift keying filter (GMSK), is a smooth change in the phase constant envelope modulation, so you can use non-linear amplifier to amplify, there is no envelope distortion, nor because of spectral regrowth and adjacent-channel interference.

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