论文部分内容阅读
SDH数字微波通信系统是指利用微波传输的一种通信方式。通常把频率为300MHz-300GHz的射频信号称为微波信号,利用微波作为载体,采用数字调制方式的通信称为微波通信。在SDH数字微波通信系统中普遍采用分体式微波设备,分体式微波设备射频部分(ODU)在室外,中频、信号处理、复接等单元(IDU)在室内,之间通过中频电缆连接。分体式微波设备容量相对较小,安装维护方便,便于快速建网,是目前应用最广泛的微波设备。
SDH digital microwave communication system refers to the use of microwave transmission of a communication. Usually the frequency of 300MHz-300GHz RF signal is called the microwave signal, the use of microwave as a carrier, the use of digital modulation communication is called microwave communication. Split-type microwave equipment is commonly used in SDH digital microwave communication systems. The radio frequency part (ODU) of the split-type microwave equipment is connected indoors and outdoors through intermediate frequency cables by means of indoor, intermediate frequency, signal processing and multiplexing units (IDUs). Split microwave equipment capacity is relatively small, easy installation and maintenance, easy to quickly build the network, is currently the most widely used microwave equipment.