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董高云, 孙军峰. CRC查表法的推广及其在iLOCK联锁系统中的应用[J]. 铁路计算机应用, 2015, 24(1): 40-45.
引用本文: 董高云, 孙军峰. CRC查表法的推广及其在iLOCK联锁系统中的应用[J]. 铁路计算机应用, 2015, 24(1): 40-45.
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DONG Gaoyun, SUN Junfeng. CRC table look-up method’s extension and its application in iLOCK Interlocking System[J]. Railway Computer Application, 2015, 24(1): 40-45.
Citation: DONG Gaoyun, SUN Junfeng. CRC table look-up method’s extension and its application in iLOCK Interlocking System[J]. Railway Computer Application, 2015, 24(1): 40-45.
shu

CRC查表法的推广及其在iLOCK联锁系统中的应用

CRC table look-up method’s extension and its application in iLOCK Interlocking System

    摘要
  • 摘要: 通过整数字节的CRC查表算法,改进了CRC编码校验算法的效率;同时经过推导证明,可以将传统的16 bit或32 bit的整数字节CRC查表法,推广至小于16 bit或32 bit的任意位数信息位的非整数字节。随后将这两种CRC查表法,应用到iLOCK计算机联锁系统中的冗余编码运算中,提高了冗余编码计算的运算效率及iLOCK系统的整体性能。

     

    Abstract: The efficiency of CRC Code Verification Algorithm was improved by CRC Table Lookup Algorithm of integer byte. The derivation showed that the traditional CRC Table Lookup Algorithm for 16 bit or 32 bit of integer byte could be extended to less than 16 bit or 32 bit of non integer byte of arbitrary. Two kinds of CRC Table Lookup Algorithm were successfully applied to the redundant coding calculation in iLOCK Interlocking System, greatly improved the efficiency of the redundant coding calculation. So the total performance of iLOCK System was improved.

     

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