摘要
测控应答机是航天器测控通信分系统的核心组成部分,配合地面测控网完成对航天器的测距测速,以及传输遥控、遥测等信息的任务。各类航天器测控通信分系统所采用的测控应答机,其工作频率、工作带宽、码速率、调制体制、编码体制和测距体制各不相同。采用软件无线电技术,利用软件可重配置、可重编程以及多频带多模式的特点,可实现测控应答机的通用化和小型化。本文介绍了软件无线电技术在测控应答机中的应用方法及研究进展,介绍了软件无线电应答机的抗辐照设计,最后介绍了自主无线电技术在未来深空探测应答机中的应用前景。
TT＆C transponder is core part of spacecraft C＆T subsystem and it can finish the tasks of measuring range ＆ velocity of a spacecraft, transmitting telecommand ＆ telemetry information, etc. in cooperation with ground TT＆C network. TT＆C transponders in different spacecraft C＆T subsystems have various operating frequency, operating bandwidth, bit rate, modulation system, coding system and ranging system. Universalization and miniaturization of TT＆C transponders can be realized by taking advantage of software reconfiguration, reprogramming and multi-band multi-mode characteristics of software defined radio （SDR） technology. This article introduced application methods and research progress of SDR technology in TT＆C transponders. Radiation resistant design of SDR TT＆C transponders is also described. Finally the article introduced the application prospect of autonomous radio technology in future deep space TT＆C transponders.
出处
《中国新通信》
2016年第6期52-54,共3页
China New Telecommunications
