提高1553B总线通信完整性的编码设计

针对总线指令不响应条件下1553B总线监控器不能正确划分相邻消息界面和总线消息传输误码检错能力不够高的1553总线通信完整性问题,提出并设计了改变指令字和状态字的同步头编码方式和增加消息垂直奇校验的编码方案,提升了总线消息监控和传输的通信完整性.定量分析表明满足高完整性通信要求的新编码1553B总线,其通信性能总体上也得到了提高.

Coding Design to Improve the Communication Integrity of 1553B

To solve 1553B bus communication integrity problems that the monitor can not exactly divide the boundary of adjacent messages in the case of no responding command and the error detection ability is not enough strong in the message transmission,a new coding scheme which changes command and status word of synchronization field codes and increases message vertical parity is designed.The integrity of the communication of bus message monitoring and transmission is enhanced with the new coding scheme.Quantitative analysis shows that the communication performance of the new coding 1553B bus that meets the requirements of high integrity communication applications is improved overall.