文档介绍：摘要
在现有的短波通信系统中，信号的调制方式是多种多样的，例如 PSK、FSK、
FM 等。本文在分析各种调制方式的基础上，重点研究了一种近年来发展很快的
高效的调制技术——连续相位调制（CPM）。与其它调制技术相比，它具有较高
的带宽和功率利用率，这也令它在通信资源日益紧张的今天得到了越来越多的关
注。
本文主要由两部分组成。第一部分首先介绍了 CPM 信号的调制解调的原理，
在此基础上对 CPM 信号特性加以分析研究；然后针对一种 CPM 信号形式，在
DSP-TMS320VC33 硬件平台中实现了其调制与捕获，并分析了其性能；最后提出
了一种多进制 CPM 信号的解调方法，结合 Matlab 仿真，验证了方案的可行性，
并给出其优缺点。第二部分首先对军标规定的短波并行体制标准加以深入研究；
其次分析说明了并行体制的发送端各个模块的实现过程，并在
DSP-TMS320C6000 硬件平台中完成了整个发送端的调试；最后分析了在发送端
实现过程中的重点难点。

关键词：连续相位调制解调短波并行体制仿真 DSP
Abstract
In HF communications system ， there are a great variety of modulation
methods,such as PSK,FSK,FM and so the base of analyzing these methods,
Continuous Phase Modulation (CPM), an efficient modulation which developed very
quickly in recent years, is mainly researched in this thesis. Compared with other
modulations, CPM is of a higher bandwidth and power efficiency, which makes it gain
more and more attention now.
The key point of this thesis lies in two parts. In the first part, on the base of the
CPM signal’s modulation and demodulation principle, the characters of CPM signal
are the modulation and capture about one kind of CPM signal is
realized in the hardware platform of DSP-TMS320VC33, and its performance is
analyzed. Finally one demodulation method of the multiple system CPM signal is
proposed. On the base of the Matlab simulation, the feasibility of this method is proved,
and its advantage and disadvantage are given. In the second part, firstly HF parallel
system standard is researched. Secondly each module of the parallel system’s
transmitter is analyzed and the entire transmitter is realized in the hardware platform of
DSP-TMS320C6000. Finally the keystone and difficulty in the realization process are
also discussed.

Keywords: CPM demodulation HF parallel system simulation DSP