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一、微波技术概述 迄今,尽管中国电信基础建设取得了极大的发展,但是仍无法满足网络迅速发展的迫切需要。因此,无线微波扩频通信以其建设快速简便等优势成为建立广域网连接的另一重要方式,并在一些城市中(如北京)形成一定规模,是国内城市通信基础设施的有效补充,引起了很多网络建设单位的兴趣。 微波扩频通信目前在国内的重要应用领域之一是企事业单位组建Intranet并接入ISP。一般接入速率为64K-2Mbps,使用频段为2.4G-2.4835GHz,该频段属于工业自由辐射频段,也是国内目前唯一不需要无委会批准的自由频段。 微波扩频通信技术特点是利用伪随机码对输入信息进行扩展频谱编码处理,然
I. OVERVIEW OF MICROWAVE TECHNOLOGY So far, despite the tremendous growth of China’s telecommunications infrastructure, it still can not meet the urgent need of rapid network development. Therefore, wireless microwave spread spectrum communication is another important way to establish a WAN connection due to its advantages such as quick and easy construction and has formed a certain scale in some cities (such as Beijing) and is an effective supplement to the domestic urban communications infrastructure, causing a lot of Network construction unit interest. Microwave spread spectrum communication is currently one of the most important application areas in the country is that enterprises and institutions set up Intranet and access ISP. General access rate of 64K-2Mbps, the use of frequency band 2.4G-2.4835GHz, the band belongs to the industrial free radiation band, but also the only country without the approval of the Committee without the free band. Microwave spread spectrum communication technology is the use of pseudo-random code input information for extended spectrum coding process