摘要
准同步数字序列(PDH)微波室外单元作为准同步数字序列系统的射频收发单元,主要实现收发信号的变频和功率变换,为系统收发中频提供无线的收发通道。文章详细介绍了系统频率规划、工作原理、总体设计、具体技术指标及实现。
Pseudo-synchronous Digital Hierarchy （PDH） microwave outdoor units （ODU） , as the RF transceiver unit of PDH system, mainly realizes the frequency conversion and power conversion of the transceiver signal, and provides the transceiver channels for the system to send and receive the Intermediate Frequency（IF）. This paper expounds the frequency plan, working principle, overall design, specific technical indicators and the implementation of the system.
出处
《电子技术（上海）》
2013年第10期81-84,共4页
Electronic Technology
