基于EDAC的低开销星载迫零检测算法  

Low overhead spaceborne ZF detection design based on EDAC

作　　者：高山[1] 王大鸣[1] 

机构地区：[1]信息工程大学通信与信息系统工程学院,河南郑州450002

出　　处：《计算机工程与设计》2015年第1期133-137,共5页Computer Engineering and Design

基　　金：国家863高技术研究发展计划基金项目(2012AA01A502;2012AA01A505)

摘　　要：针对基于传统三模冗余思想设计的星载MIMO检测算法中矩阵乘积运算资源占用率较高的问题,提出一种抗SEU的低开销星载EDAC迫零检测算法。通过在算法的矩阵乘积运算中扩展加入两行(列)"校验和",实现自检错、自纠错功能;采用模块化设计和乘法器核复用的方法,减少资源占用率和系统自恢复时间,整体提高系统的可靠性。仿真与测试结果表明,与基于三模冗余和RPR设计的迫零检测算法相比,该算法以较小的检错纠错延时为代价,提高了抗SEU性能,显著降低了资源占用率。Aiming at the problem that the matrix multiplication computation of spacebome MIMO detection algorithm based on the triple modular redundancy costs lots of resources, a design of anti-SEU spacebome error detection and correction zero-forcing detector was pro- posed. Two rows of ＂checksum＂ were added into the operation of matrix multiplication to achieve the function of self-error test and self- error correction. Besides, it can reduce resource utilization and system power consumption while improve overall system reliability. Com- pared with the traditional ones ushn_g triple modular redundancy and reduced-precision redundancy techniques, this design improves the ca- pability of resistance to SEU performance and significantly reduces the hardware resource consumption rate with a small cost of latency.

关 键 词：单粒子翻转 自检错 自纠错 迫零检测 可靠性 三模冗余 

分 类 号：TN927[电子电信—通信与信息系统]