庄灿,齐永,石和荣.基于扩展格雷码的高速数据传输加固设计[J].电子测量技术,2017,40(6):53-57
基于扩展格雷码的高速数据传输加固设计
Thedesin of high speed signals transmission reinforce based on extened golay code
  
DOI:
中文关键词:  误码  加固  扩展格雷码  FPGA
英文关键词:bit error  reinforce  extended golay code  FPGA
基金项目:
作者单位
庄灿 南京电子技术研究所南京210000 
齐永 南京电子技术研究所南京210000 
石和荣 南京电子技术研究所南京210000 
AuthorInstitution
Zhuang Can Nanjing Institute of Electronic Technology, Nanjing 210000, China 
Qi Yong Nanjing Institute of Electronic Technology, Nanjing 210000, China 
Shi Herong Nanjing Institute of Electronic Technology, Nanjing 210000, China 
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中文摘要:
      星载雷达系统由于其工作环境和高速信号传输特性,在数据传输过程中无可避免的会因为各种干扰而出现误码。为了加固高速信号抵抗传输过程中的误码干扰,采用能纠错3位的完备码格雷码,经添加一位奇偶校验位扩展得到的扩展格雷码设计了编译码电路。根据扩展格雷码的生成矩阵和校验矩阵,以及一种硬判决译码算法,基于FPGA实现了扩展格雷码的并行信息编译码器以及串行信息编译码器。行为仿真结果表明该扩展格雷码编码器能正常实现连续编码,同时在模拟星载雷达系统因为干扰而出现的误码时,该译码器能自我纠正编码分组内3个以内的任意误码组合,达到了数据传输加固的目的。
英文摘要:
      In the data transmission process of the spcaceborne radar, it is inevitable to be influenced by various interferences and get bit errors because of its working environment and high speed transmission characteristics. In order to reinforce the high speed signal and protect the process of transmission from disturbing, one of the perfect codes called golay code is taken and it can crrect include 3 error bits. Extended golay code can be created when a parity check bit is added at the end of golay code, by the way, its encode and decode curcuits were designed. Accoeding to the extended golay code generate matrix and parity matrix, as well as a hard decision decoding algorithm, the curcuits were implemented based on FPGA by verilog hardware description language, including parallel encoder/decoder and serial encoder/decoder. Finally, the behavior simulations showed that the extended golay code’s encoder could influently encod, at the same time the decoder could correct any combination within 3 bit errors when simulate the spaceborne radar was interfered and get error bits, it surely achieved the expected goal to reinforce the data transmission process.
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