| 基于向量优化重组的LFSR重新播种方法 |
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| 引用本文： | 李光宇,梁华国,李扬,虎号.基于向量优化重组的LFSR重新播种方法[J].清华大学学报(自然科学版),2011(Z1):1455-1459. |
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| 作者姓名： | 李光宇 梁华国 李扬 虎号 |
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| 作者单位： | 合肥工业大学计算机与信息学院;宿州学院机械与电子工程学院;南通商贸高等职业学校; |
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| 基金项目： | 国家自然科学基金资助项目(60876028); 高等学校博士学科点专项科研基金资助项目(200803590006); 安徽高校省级自然科学研究重点项目(KJ2010A280); 宿州学院自然科学研究项目(2009yzk04) |
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| 摘 要： | 提出了一种基于向量优化重组的LFSR重新播种方法。针对测试集中测试向量的确定位位数不同的特点,先对测试向量进行奇偶切分,接着进行重组,使新生成的测试向量中确定位大致相等。然后对新测试向量集进行LFSR编码,从而提高测试压缩率。该方案解压电路结构简单,并且种子的位数较少,与目前国内外同类方法相比,具有测试数据压缩率高、解压结构简单及测试时间少等特点。
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| 关 键 词： | LFSR 奇偶切分 优化重组 重新播种 |
LFSR reseeding based on dividing and recombining of test cubes |
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| LI Guangyu,LIANG Huaguo,LI Yang,HU Hao.LFSR reseeding based on dividing and recombining of test cubes[J].Journal of Tsinghua University(Science and Technology),2011(Z1):1455-1459. |
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| Authors: | LI Guangyu LIANG Huaguo LI Yang HU Hao |
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| Institution: | LI Guangyu1,2,LIANG Huaguo1,LI Yang1,3,HU Hao1,2(1.School of Computer and Information,Hefei University of Technology,Hefei 230009,China,2.School of Mechanical and Electronic Engineering,Suzhou University,Suzhou 234000,3.Nantong Vocational Trade and Business School,Nantong 226000,China) |
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| Abstract: | This paper presents a linear feedback shift register(LFSR) reseeding scheme based on dividing and recombining of test cubes.Since the number of specified bits in each test pattern varies widely in a test cube,the test cubes are first divided by separating the odd bits from the even bits.Then,new vectors are created by an optimal recombination of separated segments of patterns to make the number of specified bits in the new vectors roughly equivalent.Finally,vectors were encoded using LFSR.The scheme increas... |
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| Keywords: | linear feedback shift register(LFSR) dividing of parity bits optimal recombination reseeding |
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