星上自适应交换收发系统设计

The Design of Adaptive Satellite On-Board Switching Transceiver System

研制高性能卫星信号再生转发器是通信卫星的发展趋势,星上自适应交换技术是使新一代通信卫星具备宽带信号再生转发能力的关键技术之一。星上交换收发系统需要在毫米波段实现对宽带信号的放大、变频和滤波,为了保证通信质量,要尽量降低处理过程中带来的非线性失真。同时考虑到星上的使用环境,设计时要降低系统的体积、重量和功耗。本文介绍了星上自适应交换收发系统的关键技术,阐述该收发系统的设计方案和实现方法。

Effective regenerative transponder is the development trend of communication satellites. On-board switch is one of the keys to the next communication satellites.On-board switch transceiver system processes wide-band signal with amplifier,transducer and filter on millimeter-band.To guarantee the quality of communication,it’s importent to reduce non-linear distortion brought by the transponder.At the same time,considering the service invironment of the on-board switch,it’s necessary to reduce the volume,weight and the power consume when designing.To solve above problem,this paper demonstrates the key technology in the system design and introduces the design and execution plans of on-board switch transceiver system.