1～10GHz微波系统的频谱有效利用研究

Research of spectrum utilization efficiency for radiorelay system in the band 1￣10GHz

简单介绍了我国微波接力通信系统的发展现状，详细分析了我国微波接力通信中存在的一些主要问题。根据ＩＴＵ－ＲＳＭ．１０４６建议关于频谱有效利用的概念，讨论了微波接力通信系统的频谱有效利用的技术和方法，得到一个微波通信系统的频谱利用率不仅与调制方式有关，而且与天线、信号处理、编码、ＲＦ滤波器等有关。在分析讨论的基础上提出了我国微波通信系统频谱有效利用的１２条建议，为微波通信系统的设计和无线电管理部门制定法规及标准提供了科学依据。

The paper describes briefly a present development of microwave communication and also provides a detail analysis about some key shortcomings in China radiorelay system. According to the concepts in Recommendation ITUR SM.1046, and was defined as the spectrum utilization efficiency (SUE). The SUE technology and method for radiorelay system are discussed here. From the discussion, we obtain that the better SUE of asystem is not only relative to the styles of modulation, but the antenna, signal processing, coding and RF filter etc. On the basis of the analysis and discussion, 13 suggestions for SUE in China radiorelay system are offered, which will be helpful in the designing of microwave communication system as well as scientific basis for the decision of spectrum regulations and standards made by radio management sector.