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三、MSK、TFM、GMSK调制方式的性能MSK、TFM、GMSK三种调制方式用于移动无线通信系统中的数据传输时,由于移动通信中对信号带外辐射功率的限制是十分严格的,比如,信号在邻近信道所辐射的功率和所需信道的信号功率相比必须衰减70～80dB以上。为了分析比较,我们将MSK、
Third, the MSK, TFM, GMSK modulation performance of the three MSK, TFM, GMSK three modulation methods used in mobile wireless communications systems in the data transmission, due to the mobile communication signal to the band outside the radiation power limit is very strict, such as , The signal power radiated in adjacent channels must be attenuated by more than 70 to 80 dB as compared with the signal power of the desired channel. For analysis and comparison, we will MSK,