一种新的安控体制研究  

Research on a New Safety Remote Control System

作　　者：徐杨[1] XU Yang(The 54th Research Institute of CETC,Shijiazhuang 050081,China)

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《无线电工程》2020年第4期299-302,共4页Radio Engineering

摘　　要：通过将PCM-BPSK-FM与空间发射飞行终端系统(Space Launch Flight Termination System,SLFTS)的设计进行对比,提出了一种基于SLFTS的安控调制方法。SLFTS体制利用了CPFSK的优点,相比原来使用的BPSK体制,系统性能得到提高。同时针对调制系数对系统性能的影响,提出采用类似主字母预加重的方式对CPFSK频率幅度进行调整,以降低误码率。在不更换硬件平台的基础上,通过更新内部软件实现2种体制指令分别发送,既经济适用,又能满足安控所需的保密性、可靠性、低误码率和低虚指令率等性能需求。By comparing PCM-BPSK-FM with SLFTS,a new safety remote control system based on SLFTS is proposed,which employs CPFSK that is superior to BPSK.To solve the problem of influence from modulation index,a method similar to pre-emphasis in high alphabet system is employed to adjust the amplitude of frequency of CPFSK to lower the BER.By updating the software instead of the hardware,two types of system commands can be sent respectively,which is cost effective and satisfies the requirement of safety remote control for high security and reliability as well as lower BER and lower spoof command ratio.

关 键 词：PCM-BPSK-FM 空间发射飞行终端系统 安控 连续相位频移键控 调频 

分 类 号：TN91[电子电信—通信与信息系统]