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螺旋形交织器交织长度盲识别
引用本文:廖斌,张玉,杨晓静.螺旋形交织器交织长度盲识别[J].电子信息对抗技术,2014(2):14-16.
作者姓名:廖斌  张玉  杨晓静
作者单位:电子工程学院,合肥230037
摘    要:针对螺旋形交织器提出一种交织长度的盲识别方法,根据线性分组码中校验码元与信息码元间的线性相关性和交织器的作用,将截获的数据序列按列数不同排成矩阵,经过高斯约当消元后计算其下三角矩阵中含0列的比例的平均值来实现对交织长度的盲识别。仿真结果表明该方法可以实现对螺旋形交织器交织长度的识别,在误码率不大于0.003时,识别准确率可达80%以上。

关 键 词:螺旋形交织器  线性分组码  盲识别

The Blind Recognition of Interleaving Period of Helical Scan Interleaver
Authors:LIAO Bin  ZHANG Yu  YANG Xiao-jing
Affiliation:( Electronic Engineering Instimte,Hefei 230037, China)
Abstract:The blind recognition of interleaving period of the helical scan interleaver is proposed. Based on properties of linear block code and the interteaver, the data streams are rearranged to matrix with different columns firstly. Then the Gauss-Jordon elimination is used to compute the mean percentage of the zeros in the lower parts of the matrix, and finally the blind recognition of the interleaving period is achieved. The simulation results show the scheme is efficiently and the accuracy of the recognition is above 80% when the bit error rate is less than 0. 003.
Keywords:helical scan interleaver  linear block code  blind recognition
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