主字母体制原理及其在航天测控中的应用  

High Alphabet System Basis and Its Implemention in Range Safety Systems

作　　者：左增宏[1] 

机构地区：[1]北京跟踪与通信技术研究所,北京100094

出　　处：《遥测遥控》2008年第1期9-13,共5页Journal of Telemetry,Tracking and Command

摘　　要：介绍一种数字信号调制技术——主字母体制,结合我国航天测控系统安全遥控的现状,探讨其在实际工程中的应用价值和实现方法。提出可以向前兼容、向后扩展的应用思路,设计一套实现方案,对现有系统作最少量的改动。保持系统发射功率、作用距离不变,估算系统的可靠性指标。A new digital signal modulation technique is introduced in this paper,which is the High Alphabet System.Then the Range Safety Systems in our country is reviewed,and the implementation method of this new technique is discussed.A project design is pointed out,which is compatible with the existed systems and can be easily upgraded.In the end,the reliability of this system is estimated on the current conditions of power and operating distance.

关 键 词：航天测控 信号调制 主字母体制 安全控制 

分 类 号：V556[航空宇航科学与技术—人机与环境工程]