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blast算法
相关语句
  blast algorithm
     Block BLAST algorithm for MIMO single-carrier frequency-domain-equalization
     用于MIMO单载波频域均衡的块BLAST算法
短句来源
     Based on the principle of V-BLAST signal detection, this paper proposes a block-based layered detection algorithm, named block BLAST algorithm, for MIMO SC-FDE system.
     本文基于V-BLAST信号检测的原理,对MIMO-SC-FDE系统提出了以块为单位进行分层检测的块BLAST算法
短句来源
     Simulation results demonstrate that the block BLAST algorithm gets a much better BER performance than the ordinary detection algorithm in MIMO SC-FDE.
     仿真实验结果显示,块BLAST算法取得了大大优越于MIMO-SC-FDE常规检测算法的误码性能。
短句来源
     According to the amount of the sequence, first this analyses and compare detailedly about Smith-Waterman algorithm, FASTA algorithm, BLAST algorithm, MUMmer algorithm and genetic algorithm in twin-sequence alignment. Then this paper summarizes CLUSTAL algorithm and star-alignment algorithm in the more-sequence alignment. Finally, it point out hotspot about the DNA sequence alignment algorithms.
     按照序列的数量,先对双序列比对中Smith-Waterman算法、FASTA算法、BLAST算法、MUMmer算法和遗传算法等进行了详细分析和比较,然后对多序列比对中的CLUSTAL算法和星比对算法也进行了比较全面的总结,并指出了当前的研究热点。
短句来源
  “blast算法”译为未确定词的双语例句
     This paper introduces the MIMO system and the responding arithmetic D_BLAST & V_BLAST, the space-time trellis code and space time block code as well as the responding coding and decoding technology.
     介绍了MIMO系统及其D_BLAST和V_BLAST算法,并分别介绍了空时格码和空时分组码及其编码和解码方法。
短句来源
     Meanwhile,a new MIMO-JD detection algorithm is proposed that combines the multi-user detection and MIMO technology.
     同时将多用户检测和MIMO的空间处理机技术相结合,提出了一种新的、易于实现的MIMO-JD检测算法,理论分析和仿真结果表明这种算法较现有的RAKE-BLAST算法性能有很大的改善。
短句来源
     The simulation result shows that compared with original V-BLAST algorithm,it has better BER performance: When an open loop system with 2 transmit and 2 receiver antennas is used,the channel has flat fading,and error code ratio is 10~(-2),resulting in 2 dB gain.
     仿真结果显示,与原V-BLAST算法相比具有更好的误码性能:在开环2发2收的情况下,信道为瑞利平坦慢衰落,采用QPSK(正交相移键控)调制,误码率为10-2时可获得2 dB的增益。
短句来源
     In this thesis, it introduces the development, research and database of bioinformatics first, then some methods of alignment are described,such as dot matrix sequence comparison,dynamic programming algorithm for sequence global alignment,Smith-Waterman algorithm31ast algorithm,MUMmer,PatternHunter and so on. Comparison is made among above algorithms from angle of running speed and sensitivity.
     本文对生物信息学的发展、研究内容、生物数据库做了简单的介绍,对序列比对的各种算法:点阵法、动态规划全局比对算法、Smith—Waterman算法、启发式Blast算法、MUMmer、PatternHunter算法等做了描述,并从运行速度和敏感性两个角度进行了比较。
短句来源
     And the simulation results also tell us if LLL precoding algorithm is combined with the V-BLAST detection, the performance of the precoding system will be improved by the V-BLAST LLL precoding strategy.
     与V-BLAST算法相结合的格约简辅助矢量预编码算法由于在V-BLAST中根据当前信道状态特征,在预编码时对信号进行重新排序,因此提高了预编码性能。
短句来源
更多       
  相似匹配句对
     The algorithm is an extension of the two-valued cover-most algorithm proposed by M. C.
     该算法是M. C.
短句来源
     An Improved V-BLAST Decoding Algorithm
     一种改进的V-BLAST译码算法
短句来源
     An improved V-BLAST decoding algorithm is proposed.
     提出了一种改进的V-BLAST译码算法
短句来源
     H-Algorithm and its Validity
     H算法及确实性
短句来源
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  blast algorithm
Blast algorithm searches revealed that the largest set of up-regulated genes (about 35%) was assigned to the primary/secondary metabolism.
      
Putative functions were assigned to 1583 clones, which represented 882 unique transcripts, by a Blast algorithm.
      
The sequence was identified with BLAST algorithm having the highest Gene Bank Accession number.
      
A General Reconfigurable Architecture for the BLAST Algorithm
      
The BLAST algorithm and software is computationally very intensive and as a result several computer vendors use it as a benchmark.
      
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Objective To study and identify the organism to donate the genetic element to nontoxinogenic strains of V. cholerae and to induce the horizontal transfer of cholera toxin gene. Methods Southern blot. PCR examination. cholera toxin of pCTAK was expressed and studied in E.coli with ELISA. The ctxAB and zot gene of pCTAK was sequenced. CTAKΦ phage particles were isolated from supernatants of pCTAK strains and examined by electron microscopy. Phage DNA was isolated from CTAKΦ particles. CTAKΦ particles and DNA...

Objective To study and identify the organism to donate the genetic element to nontoxinogenic strains of V. cholerae and to induce the horizontal transfer of cholera toxin gene. Methods Southern blot. PCR examination. cholera toxin of pCTAK was expressed and studied in E.coli with ELISA. The ctxAB and zot gene of pCTAK was sequenced. CTAKΦ phage particles were isolated from supernatants of pCTAK strains and examined by electron microscopy. Phage DNA was isolated from CTAKΦ particles. CTAKΦ particles and DNA were analyzed with S1 nuclease. Results A plasmid (designed pCTAK) was identified harboring at high copy number in a V. cholerae O139 strain FJ97129. It encoded cholera toxin operon (ctxAB), zoluna toxin gene (zot), RS sequence. Extracellular filamentous phage particles (designed CTAKΦ) were isolated from supernatants of the strain FJ97129. Single strand DNA purified from CTAKΦ particles was about 8.5kb in size. Conclusion A new type of filamentous phage encoding cholera toxin was found and identified. [

目的 探讨介导霍乱弧菌毒素基因水平转移的一种独特的遗传结构。方法 从O139群霍乱弧菌菌株FJ9712 9上清中分离出丝状噬菌体颗粒CTAKΦ ,并进行电镜观察。从丝状噬菌体颗粒CTAKΦ中纯化出DNA ,并进行链型分析。对pCTAK进行酶谱分析。用ctxAB、zot引物对pCTAK进行PCR扩增检测 ,用RS1探针对pCTAK进行Southernblot检测 ;用pCTAK转化DH5α和IEM10 1得到DX2 9和 432 9,将pCTAK克隆于pUC18载体并转入DH5α得到UD2 9,用GM1 ELISA检测DX2 9、432 9、UD2 9的CT表达。对pCTAK的ctxAB、zot基因片段进行测序 ,并用DNASTAR软件和BLAST算法 ,在国际互联网上对测序结果进行序列分析。结果 发现和分离了一种编码霍乱毒素的质粒pCTAK ,它以稳定的高拷贝数存在于 1株天然的O139霍乱弧菌FJ9712 9中 ;酶谱分析发现其明显不同于CTX元件酶谱 ,在CTX元件中相当保守的酶切位点 :BglⅡ、EcoRⅤ、PstⅠ、EcoRⅠ ,在pCTAK中没有切点。ctxAB、zot引物对pCTAK的...

目的 探讨介导霍乱弧菌毒素基因水平转移的一种独特的遗传结构。方法 从O139群霍乱弧菌菌株FJ9712 9上清中分离出丝状噬菌体颗粒CTAKΦ ,并进行电镜观察。从丝状噬菌体颗粒CTAKΦ中纯化出DNA ,并进行链型分析。对pCTAK进行酶谱分析。用ctxAB、zot引物对pCTAK进行PCR扩增检测 ,用RS1探针对pCTAK进行Southernblot检测 ;用pCTAK转化DH5α和IEM10 1得到DX2 9和 432 9,将pCTAK克隆于pUC18载体并转入DH5α得到UD2 9,用GM1 ELISA检测DX2 9、432 9、UD2 9的CT表达。对pCTAK的ctxAB、zot基因片段进行测序 ,并用DNASTAR软件和BLAST算法 ,在国际互联网上对测序结果进行序列分析。结果 发现和分离了一种编码霍乱毒素的质粒pCTAK ,它以稳定的高拷贝数存在于 1株天然的O139霍乱弧菌FJ9712 9中 ;酶谱分析发现其明显不同于CTX元件酶谱 ,在CTX元件中相当保守的酶切位点 :BglⅡ、EcoRⅤ、PstⅠ、EcoRⅠ ,在pCTAK中没有切点。ctxAB、zot引物对pCTAK的PCR扩增检测呈阳性 ,RS1探针杂交呈阳性 ;pCTAK的ctxAB、zot基因序列与已报道的序列有很高的同源性。pCTAK能直接或经载体转化DH5α和IEM10 1并表达CT。从FJ9712 9培养上清中分离出丝状噬菌体颗粒CTAKΦ ,电镜观察并计算其直径大小为 7nm左右。其全基因组大小为 8.5kb ,为?

To improve system capacity is always a hotspot in mobile communication systems.Therefore,space-time code techniques have been widely studied in wireless communications,for they provide better signal qualities in fading channel environments and increase system capacity.As an important space-time code,Vertical Bell lab Layered Space-Time (V-BLAST) code has been paid much attention in recent years.However,traditional detection algorithm of V-BLAST needs much time in performing linear nulling and successive symbol...

To improve system capacity is always a hotspot in mobile communication systems.Therefore,space-time code techniques have been widely studied in wireless communications,for they provide better signal qualities in fading channel environments and increase system capacity.As an important space-time code,Vertical Bell lab Layered Space-Time (V-BLAST) code has been paid much attention in recent years.However,traditional detection algorithm of V-BLAST needs much time in performing linear nulling and successive symbol cancelling.The more the number of transmit antennas are,the more the process time delay is.Aiming in solving this problem,a new scheme based on linear nulling and parallel symbol cancellation is proposed in this paper.The new scheme is of less time delay and simpler detection structure.And the simulation results of new scheme are obtained by COSSAP simulation in flat Rayleigh channels.These simulation results are presented to verify the BER performance of new scheme based on parallel symbol cancellation.

移动通信系统研究的热点之一是提高系统容量 .因此 ,空时码技术因其可在衰落环境下提供高质量的信号 ,进而提高系统容量而在无线通信中得到了广泛的研究 .最近几年 ,对空时码中的一个重要分支———垂直 贝尔实验室分层空时码 (V BLAST)的研究已经有很多 .然而 ,传统的V BLAST算法由于需要进行大量的线性迫零和串行符号删除等运算 ,时延很大 .而且发射天线数越多 ,时延也就越大 .针对上述问题 ,本文提出了一种新的基于线性迫零和并行符号删除的检测算法 .其优点是时延小且结构简单 .对于新的译码方案我们在COSSAP中平坦瑞利信道下进行了仿真 ,仿真结果显示了基于并行符号删除的新方案的误码率 (BER)性能

This letter overviews a new encoding and decoding signal processing tech nique,namely layered space_time en-coding&decoding,and compares their advantage and dis advantage?Because of computation complexity f or D -BLAST(Diagonal Bell LAaboratory Space -Ti me architecture),we emphasis on V -BLAST(Vertical BLAST),which makes good engi-neering sense in practice?Formulation results and conclusion was provided at the end of this letter.

概述了一种新的编码和信号处理技术—分层空时码(BLAST)的编解码算法,并比较了各自的优缺点。由于D-BLST的计算复杂度太大,重点分析了工程上具有实用价值的V-BLAST算法,文章的最后给出了仿真结果和结论。

 
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