In experimental results, one observes clearly the gradual saturation of simple waves and high frequency modulations on the sawtooth waveform.
在实验结果中，还观察到简单波逐渐饱和的情况以及叠加于锯齿波上的大量高频调制部分。
Because of limited frequency band of channel, spread spectrum and MFSK modulations can not resolve that high speed transmission is in contradiction with limited frequency band.
当进行高速水下通信时，由于水下信道的频带有限，扩频和MFSK调制方式无法解决高速率信息传输和可利用信道频带窄的矛盾。
By using the language of MATLAB7.0, the function called by signal is processed to all kinds of modulations, and also the frequency...
利用MATLAB7.0语言编制脚本文件，对信号调用相应的函数进行各种调制，并且对其进行频谱分析。
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