As frequency divided multiplex access is widely adopted in communication satellite system, strict frequency spectrum limits on modulator is mandated.
通信卫星的频分复用机制，对卫星通信系统的发送信号频谱成型提出了严格的要求。
In this paper we suggested the width modulation-another modulation method of Walsh function in the multiplex system.
本文提出了沃尔什函数作多路复用传输时的另一种调制制式——宽度调制。
Thus, the SDM, as a multiplex system parallel to FDM and TDM, can be perfectly applied to telemetry.
因此SDM作为一个与FDM和TDM相平行的多路复用系统是完全能用于遥测中的。
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