自动发信功率控制(ATPC)在微波电路设计时的几项考虑

Considerations on Automatic Transmitting Power Control (ATPC)in Microwave

自动发信功率控制（ＡＴＰＣ）是ＳＤＨ微波系统的一项重要技术，它是微波发信机的输出功率在ＡＴＰＣ的控制范围内自动地跟踪接收电平的变化而变化。当传播发生严重衰落时，启动ＡＴＰＣ，对电路传输性能和可用度有一定的改善作用。从 ＡＴＰＣ的特点、优点、分类及其工作原理分析入手，并结合已建成的ＳＤＨ微波电路运行情况，提出ＡＴＰＣ在微波电路设计时应考虑的事项。

Automatic transmitting power control (ATPC) is a key technology in SDH microwave system, it is that microwave transmitter output power automatically changes in ATPC control range with the change of electrical level. The application of ATPC will improve circuit transmission performance and availability when propagation had been faded greatly. By analyzing features, advantages and varieties of ATPC as well as operating principles, combined with the operating situation of established SDH microwave circuit, it presents consideration issues on microwave circuit design.