太赫兹科学与电子信息学报
太赫玆科學與電子信息學報
태혁자과학여전자신식학보
Information and Electronic Engineering
2014年
6期
832-836,841
,共6页
信道编码%分组交织%盲估计%非码长整数倍
信道編碼%分組交織%盲估計%非碼長整數倍
신도편마%분조교직%맹고계%비마장정수배
channel coding%convolutional interleave%blind estimation%non-multiple of code-word length
针对与线性分组码级联的矩阵交织器，提出了一种矩阵交织参数盲估计方法。首先构造数据矩阵，确定交织深度的整数倍；再进行一维假设确定交织偏差；最后对交织深度和交织宽度进行二维搜索，对数据进行解交织，确定这2个参数，实现了矩阵交织不同交织深度下参数的盲估计。该方法适用于任何交织深度下矩阵交织器参数估计，尤其适用于未被研究过的交织深度不等于码长整数倍的情况。仿真表明：在误码率为0.001时，无论交织深度是否为码长的整数倍，所提算法的参数估计速度均较快，且检测概率可达98%。
針對與線性分組碼級聯的矩陣交織器，提齣瞭一種矩陣交織參數盲估計方法。首先構造數據矩陣，確定交織深度的整數倍；再進行一維假設確定交織偏差；最後對交織深度和交織寬度進行二維搜索，對數據進行解交織，確定這2箇參數，實現瞭矩陣交織不同交織深度下參數的盲估計。該方法適用于任何交織深度下矩陣交織器參數估計，尤其適用于未被研究過的交織深度不等于碼長整數倍的情況。倣真錶明：在誤碼率為0.001時，無論交織深度是否為碼長的整數倍，所提算法的參數估計速度均較快，且檢測概率可達98%。
침대여선성분조마급련적구진교직기，제출료일충구진교직삼수맹고계방법。수선구조수거구진，학정교직심도적정수배；재진행일유가설학정교직편차；최후대교직심도화교직관도진행이유수색，대수거진행해교직，학정저2개삼수，실현료구진교직불동교직심도하삼수적맹고계。해방법괄용우임하교직심도하구진교직기삼수고계，우기괄용우미피연구과적교직심도불등우마장정수배적정황。방진표명：재오마솔위0.001시，무론교직심도시부위마장적정수배，소제산법적삼수고계속도균교쾌，차검측개솔가체98%。
For linear block code which takes the matrix interleave in channel coding, a new method is proposed to estimate blindly the interleave parameters. It determines firstly the multiple of interleave depth by constructing data matrix, then does one-dimensional hypothesis for the interleave offset. At last, two-dimensional hypothesis for the interleave depth and interleave width is taken in order to deinterleave the intercepted data, and to achieve the blind estimation of all interleave parameters. The method is applicable to any case of matrix interleaver for interleaver depth estimation, especially for the kind that the interleaver depth is not equal to an integer multiple of the code length which has not been studied so far. Simulation results show that, the detection probability can reaches 98% even though the bit error rate is 0.001. Meanwhile, the algorithm has a fast detection speed no matter what the interleaver depth is.
