最小码距为4比特、长度为12比特的复合正交码集的生成方法  

Coding Method of Bi-orthogonal Aggregation with the Minimum Distance of 4bits and the Code Length of 12bits

作　　者：于敏芳[1] 曾连连[1] 张明哲[1] 

机构地区：[1]北京空间飞行器总体设计部,北京100094

出　　处：《遥测遥控》2013年第3期48-52,共5页Journal of Telemetry,Tracking and Command

摘　　要：航天器遥控是地面操控航天器的命令通道。由于通信环节存在误码率,会造成虚、漏、误三种错命令,其中误命令概率的要求比其他两种错误概率要求更高。误命令的概率与码集的最小码距有很大关系,最小码距越大,误命令的概率越低。利用拉丁方阵构造出最小码距为4比特、长度为12比特的复合正交码集,并给出编码过程的数学表达式及其证明。该编码方法便于使用计算机编程实现指令码集的自动生成。The spacecraft telecommand is defined as the command channel for the ground controller.There are three miscommands received by the spacecraft due to the error bit brought by the communication process.The requirement of mis-command probability is higher than those of leaking-command and empty-command probabilities.The mis-command probability is relative to the minimum distance of command aggregation.The method given in this paper uses the Latin-matrix to design the bi-orthogonal codeword set with the minimum distance of 4bits and the code length of 12bits.And more the method is expressed as mathematics formulas,and has been proved.This coding method makes it possible to implement the automatic generation of the codeword set by the computer program.

关 键 词：双正交码 码距 

分 类 号：TN911[电子电信—通信与信息系统]