Algorithm for real number space quasi-zero correlation zone sequences based on evolution strategy 基于进化策略的实数域准零相关区序列生成算法
A new design method for families of sequences with large linear span, low cross correlation and large sequences number is presented. 本文提出了一种具有大线性复杂度、低相关性能和序列数目多的新伪随机序列构造方案。
The Research and Application of Partial Correlation Property of LS Sequences LS序列部分相关特性研究及其应用
Fault lake basin is the object of oil-gas exploration having typical meaning in continental sedimentation basin of east China, which is characterized by rapid changes of facies, difficulty in correlation of sequences and complex supply of source rock. 断陷湖盆是中国东部陆相沉积盆地中最具典型意义的油气勘探对象,但其相变剧烈,层序对比难度大,物源补给体系复杂。
The system models of the uplink and downlink MC-CDMA are analyzed and the relation between the PAPR and the non-periodic correlation of the spreading sequences is presented. The PAPR performance based on different types of spreading sequences in the uplink and downlink of the MC-CDMA are simulated. 分析了MC-CDMA上下行链路发送端的基带系统模型,给出了发送信号峰均功率比和用户扩频序列非周期自相关函数之间的关系,对上下行链路采用不同类型扩频序列集的PAPR性能进行了仿真。
Therefore, the optimal Hamming correlation property frequency-hopping sequences can be constructed. 进而构造了具有最佳Hamming相关特性的跳频序列族。
And then discusses the methods of generation and correlation characteristic of m Sequences, Gold Sequences, M Sequences and the multiplex sequences structured by Walsh Sequences and Gold/ M Sequences respectively. 然后分别讨论了m序列、Gold序列、M序列、Walsh序列及Walsh序列与Gold序列和M序列的复合序列的产生方法和相关特性;
It is shown that there is good correlation between sequences in the large sequence family, and sequences are balanced in a least period. 研究表明生成的大序列族有良好的互相关性、均衡性,并且给出了最小周期的下界。
The various correlation bounds of spreading sequences in CDMA system are synthesized and arranged in the eyes of engineering applications based on Welch bound and some useful results are acquired. This applied the theoretic basis for spreading frequency sequences devise of CDMA system. 以Welch界为基础,从工程应用角度,综合整理了对实际CDMA有用的扩频序列的相关界,并得出了二个有用的推论,为码分多址扩频序列设计提供理论基础。
In addition, an equivalent expressing method of correlation function of time-hopping sequences is introduced and by studying the characteristic of it, an upper bound of correlation function of time-hopping sequences is presented. 介绍跳时序列相关函数的一种等效表示方法,对跳时序列相关函数的特点进行研究,得出了跳时序列相关函数的一个上界。
Correlation Between Enterovirus Nucleotide Sequences and Serotype 肠道病毒核苷酸序列和血清型的相关性
Modified long-raner C-H chemical shift correlation pulse sequences 改进的远程C-H化学位移相关谱脉冲序列
The Correlation Functions of Sequences Generated by Hybrid Code Copying 混合进制复制生成序列的相关函数
Construction of Mutually Orthogonal Sets of Zero Correlation Zone Sequences 一类相互正交的零相关区序列集的构造
Division and correlation of the sequences of marine Sinian system to Middle Triassic Series in the south of China 中国南方海相震旦系&中三叠统层序划分与对比
The aperiodic and periodic correlation properties of pseudorandom sequences have been discussed. 本文主要讨论了伪随机序列的非周期和周期相关特性。
The group correlation properties of binary sequences is studied. And a conclusion is drawn that not only the group correlation function of a binary sequence itself is ideal, but also that of some of its subsets, when code length N is even, is ideal. 本文研究了二进制序列的群相关特性,证明了不仅二进制序列的群相关函数是理想的,而且当码长N是偶数位时,它的某些子集的群相关函数也是理想的。
After comparing the correlation performance of sequences which are generated in these algorithms separately, we decided to use frequency sampling method has the best performance to design shaping filter. 在比较了三种方法产生序列的相关特性之后,选择了相关性能最好的频率抽样法来设计成形滤波器。
Based on perfect sequences and orthogonal sequence sets, a new class of mutually orthogonal sets of zero correlation zone sequences is presented. 该文基于完备序列和正交序列集,构造出一类相互正交的零相关区序列集。
On Correlation Features of Encoding Sequences 编码序列相关特性分析
A review of the study of correlation structures of DNA sequences and the analysis of human genome sequences DNA序列相关性结构研究综述及人类基因组序列相关性分析
Blind Information Hiding Arithmetic Based on Correlation of Data Sequences in DWT Domain 一种基于数据序列相关性的小波域信息盲隐藏算法
In the detection, the good correlation of Gold sequences is taken advantage of to recover watermarks. 在检测阶段,充分利用Gold序列良好的相关性恢复出水印。
At the same time the correlation function and power spectrum density are been analyzed, at last the correlation compound K-distribution stochastic sequences whose covariance matrix is been given are been generated through SIRP algorithm. 同时对海杂波的相关函数和功率谱进行了分析,最后使用SIRP算法产生了给定协方差矩阵的相关复合K-分布随机序列。
The correlation between the sequences is quite good. 这些序列之间具有很好的相关性。
For minimize disturbance caused by correlation among sequences, one big problem of sequence design is construct lowest correlation sequence. 为了尽可能的减小序列间由于相关性引起的干扰,设计序列的一个大问题就是构造最低相关性的序列。
For finding out the essence of the correlation between protein sequences and the symmetry of their structures, we use the modified nonlinear prediction method and recurrent plot method to the beta-trefoil family proteins whose structures contain perfect three-fold symmetry. 为了揭示蛋白质序列与蛋白质结构对称性之间关联的本质,我们利用改进的非线性预测方法,并结合重现图方法,对Beta-trefoil家族蛋白质进行研究。
The article first study correlation of DNA sequences using methods of statistical physics, it namely study DNA on the gene sequences level. 本文首先利用统计物理学方法分析研究DNA序列的统计属性,即从DNA序列层次上分析研究DNA。
To achieve good correlation results, pseudorandom sequences including m-sequence, Gold code and chaotic sequence combined with spread spectrum modulation are used to excite ultrasonic transducers. The feasibility of the sine coded spread spectrum method for crosstalk inhibition has been verified. 采用m序列、Gold码以及混沌序列等随机特性较好序列结合扩频调制方式作为超声测距系统的激励序列,取得较好相关效果,验证了正弦编码扩频方法在抑制串扰课题上的可行性。
The correlation properties of sequences have an important effect on multiple access interference and multi-path interference, and hence affect the bit error rate ( BER) and data transfer rate of systems to a large extent. 序列的相关性能直接影响到系统的多址干扰和多径干扰的大小,从而在很大程度上决定了系统的误码率性能和传输速率。