谱序列

谱序列与Morse不等式

Spectral Sequence and Morse Inequalities

利用May谱序列和Adams谱序列证明：同伦元素β2γs在一定条件下是阶为p的非平凡元素，其中p≥7是奇素数。

We make use of the May spectral sequence and the Adams spectral sequence to prove that under some conditions the homotopy element β _2 γ _s is nontrivial and of order p , where p ≥ 7 is an odd prime number .

基于Chebyshev混沌扩谱序列的MC-CDMA系统的峰均功率比研究

The Peak-to-Average Power Ratio of MC-CDMA with Chaotic Chebyshev Spread Sequence

基于双谱序列图像的ATR系统设计与实现

Design and Implementation of ATR System Based on Two-spectrum Sequence Images

利用谱序列方法证明了对于紧致微分流形上一般的Morse函数而言，Morse不等式均成立。

The authors use method of spectral sequences to prove that Morse inequalities are hold on differential compact manifolds for general Morse functions .

为了获得异步DS-CDMA系统的最优扩谱序列，给出了一套用来选取混沌二值序列的优化准则。

In order to generate the optimal spreading sequences for asynchronous DS-CDMA , some optimizing criteria for selecting chaotic binary sequence were proposed .

本文利用Chebyshev混沌扩谱序列的伪随机、非周期、数量大和良好的相关特性，作为MC-CDMA系统上行信道的扩谱序列，以改善输出信号的峰均功率比。

Taking the advantage of random-like , non-periodic and excellent correlation property of chaotic sequence , the authors recommend using them as the spread sequence of MC-CDMA in the uplink channel in order to lower the PAPR of OFDM multi-carrier modulation .

并说明了对于有序Morse函数而言，谱序列算同调群的方法与下Witten复合形算法是一致的；而对于一般的Morse函数，这两种算法在形式上是不一致的。

They also indicate that for order Morse functions , it can be computed out the same homological groups by method of spectral sequences , as by Witten complex , although they are very different in form for general Morse functions .

导出偶、谱序列与复形的张量积

Derived Couples , Spectral Sequences and Tensor Products of Complexes

相位扩谱序列的设计准则及该直扩多址系统的性能研究

Design Criterion of Phase Spreading Sequences and Performance of DS / SSMA Communications

因此，它可用于产生混沌扩谱序列和混沌密钥流序列。

So it can be used to generate spreading sequences and key stream sequences .

谱序列及其对偶

Spectral sequence and its dual

研究由分段线性谱序列生成的广义傅里叶级数的逐点敛散性。

In this paper , the pointwise convergence and divergence of a class of generalized Fourier series generated by piecewise linear spectral sequences are studied .

文章得出了一系列理论上的刻画，但主要贡献在于给出迭代解法以生成多节点分片线性谱序列，并且对分片常数谱序列进行了研究。

While some theoretic characterization is achieved , our main contribution here is to present a recursive method and have a study on this kind of spectral sequences .

同伦论的重要内容就是计算空间的同伦群，目前计算同伦群的最重要方法是谱序列。

The most important content in Homotopy theory is to calculate the homotopy group of a topological space . Now the most useful method to calculate homotopy group is spectral sequence .

本文讨论了利用通常的滤系所确定的双复形M的全复形的谱序列同它的对偶谱序列之间的同构关系。

In this paper , we discuss isomorphic relation between duality of a spectral sequence of a total complex Tot ( M ) of a bicomplex M determined by usual filtration with its dual spectral sequence .

给出一般情形下关于导出偶的一个结果，然后用谱序列的极限项刻划了可换凝聚环（或可换凝聚局部环）上有限表现模的投射维数。

Result on the derived couples is obtained , then with the limit of spectral sequences the projective dimension of a finitely presented module over a commutative coherent ring ( or commutative coherent quasi-local ring ) is characterized .

改进的远程C-H化学位移相关谱脉冲序列

Modified long-raner C-H chemical shift correlation pulse sequences

首先对超谱图像序列谱间采用DPCM编码处理，这主要是由于超谱图像的谱间具有很强的相关性。

Firstly , due to the strong correlation between the spectrums of hyper-spectral image , DPCM is used to process the sequence spectrum of the image .

第二部分我们给出了本论文所涉及的基本概念，研究了图的改变与谱矩序列排列之间的关系。

Section Two is about some concepts and lemmas involved as follows .

给定线性复杂度谱的序列的条数

Number of sequences with given linear complexity profiles

地震序列的功率谱在序列类型判断及强余震预报中的应用

The application of the power spectrum of earthquake sequence for various category discrimination and strong aftershock prediction

另外，为了更为直观地反映以上规律，在本文的附录中给出了按照谱矩序列先后顺序排列的所有八阶双圈图以及它们的度序列和第1至第6阶谱矩序列。

In addition , diagrams of the 221 bicyclic graphs on eight vertices are given in Appendix which are ordered lexicographically by spectra moments , and for each graph from Table 1 the degree sequence and the first six spectral moments are given in Table 2 .

7〕线性码的重量谱与其差序列是一一对应的.本文改进了〔1〕结构4的条件（iv），从而得到了不满足链条件的〔n，3；

In this paper , construction 4 ( iv ) [ 1 ] is improved , then non-chain difference sequences of linear [ n , 3 ; 7 ] codes are obtained .

黑腹果蝇梳理行为谱及行为序列研究

Study on grooming behavior ethogram and behavior sequence in fruitfly Drosophila melanogaster

这种作法在反射系数为具有白功率谱的随机序列时是正确的。

This has been proved to be right If the reflection coefficients were a stochastic sequence with white power spectrum .

抗冻肽cDNA插入片段经杂交证实后，对其进行了酶谱分析，核酸序列测定。

After confirmation of the insert segment of the cDNA of antifreeze protein gene , the zymogram was detected and the sequence of the nucleotides was determined .

采用简并引物逆转录聚合酶链反应（RTPCR）及随机引物随机扩增多态性DNA（RAPD）PCR比较分析噬菌体宿主谱改变时核酸序列组成的变化；

Differences of nucleic acid sequence between phage f_2 and phage with broad host range with reverse transcription-polymerase chain reaction ( RT-PCR ) and random amplified polymorphic DNA ( RAPD ) - PCR were also comparing and analysed .

用AR谱测定的模拟序列Q-M曲线与观测资料Q-M曲线对比来估计Qr值，可能是一种比较合理的途径，它依赖于模拟技术的完善和提高。

A possible approach to determine QT by comparing the Q-M curve of simulated series derived form AR spectral analysis with that of observed data may be more reasonable .

基于奇异谱分析的混沌序列降噪

De-Noising of Chaotic Time Series Based on Singular Spectrum Analysis