分离

Using ITS sequence combined with the morphological character, we define the clear links between the sexual and conidial forms of 15 Cordyceps species. The study also indicated that molecular criterion might provide a useful way to better understand the evolutionary connection between anamorph and teleomorph of entomogenous fungi.

根据核酸分子特征鉴别了一批新分离的虫草菌的无性型，并将在此基础上建立起虫草属主要种类的核酸的核酸分子探针和无性型快速识别的分子生物学方法，为一些重要类群活菌株的分离培养提供检测标准。

The A and B components remanent magnetization were loaded by goethite and maghemite respectively, the C component remanent magnetization was carried by the magnetite in the sandstones and were loaded conjunctly by the magnetite and hematite in the mudstones and muddy sandstones.

它们的存在并不影响岩石原生剩磁的分离，也不影响原生剩磁信号的稳定性和获得的古地磁数据的可靠性。16个砂岩采点中不能分离出C分量，是由于后生的赤铁矿彻底改变了由磁铁矿携带的原生剩磁组分，在高密度采样的情况下剔除这些采点并不影响古地磁极性柱的构建和解释。

The uniqueness of solutions and the separation systems of the two-input two -output convolutive mixtures are summarized and analyzed.

二、对两输入两输出卷积混叠信号盲分离的解的唯一性、分离系统的构造及其解进行了系统的归纳、分析和对比。

The simulation shows that the algorithm can separate convolutive mixtures in undetermined case, and results demonstrate encouraging separation performance of the signals.

仿真实验证明，算法可以完成欠定情况下卷积混合信号的盲分离，分离结果令人满意。

Transmission delay or echo interference has to be considered in many situations, where the mixing mode of the blind signals could be described as convolutive mixing.

讨论了基于神经网络结构的自适应盲分离算法，利用非平稳信号的时间相关属性和自然梯度学习方式提出了一种自适应盲分离算法。

Then,the state of the art and the challenge problems in ICA research field are discussed.The algorithms for standard and extended ICA models,including blind deconvolution,blind separation of convolutive mixtures,nonlinear instantaneous mixtures,are briefly analyzed.

讨论了目前ICA的几个研究方向的发展现状和面临的问题，分析了ICA基本模型和几种扩展模型的求解算法，包括盲反卷积、卷积混和的盲分离、非线性瞬时混合的盲分离。

In this paper, a time-domain blind source separation algorithm for non-stationary convolutive mixtures is proposed by reprogramming the vectors of convolutive mixture model and generalizing the joint approximate diagonalization method.

摘要该文将卷积混合盲源分离模型中的向量进行重新规划并对联合近似对角化方法加以推广，提出一种非平稳卷积混合信号的时域盲源分离算法。

Research BSS algorithm of non-stationary signals by using natural gradient rule. Two new adaptive BSS algorithms of non-stationary signals with temporary mixing or convolutive mixing are deduced and validated.

基于自然梯度学习方式研究非平稳信号的盲分离，分别推导出信号在瞬态线性混合以及卷积混合情况下的自适应分离算法，验证了算法在处理语音等非平稳信号方面的优越性。

This paper only does research on adaptive blind source separation algorithm in two mixture models梚nstantaneous mixture and convolutive mixture.Blind source separation needs high order statistics.

盲分离算法需要用到高阶统计量，互累积量迫零法是一种直接利用高阶统计量的自适应盲分离算法。

This article separated the vocal melody signals from MP3 songs audio signals based on frequency domain convolutive signal blind source algorithm, and then built a song database of humming retrieval system using song melody features extracted from the vocal melody signal.

将通过频域卷积信号盲源分离算法从MP3歌曲音频信号中分离出人声主唱信号，再从人声主唱信号中提取出能够表征歌曲的旋律特征构建哼唱检索系统的歌曲数据库。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。