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- fourthorder cumulant 四阶累积量
- The Higher-Order cumulant is an effective method to restrain colored noises. 摘要高阶累积量是抑制有色噪声的一个有效方法。
- Therefore, in the study nonlinear phenomena in high energy collisions the HFM can be used only in combination with the cumulant variables. 因此，在高能碰撞非线性现象（间歇和分形）的研究中，只有采用了累积变量时，才能使用横向阶乘矩进行计算。
- In order to detect moving infrared dim and small target, a novel high-order cumulant projection algorithm was proposed. 摘要为检测弱小红外运动目标，提出了一种基于高阶累积量投影的检测算法。
- The disadvantages of some traditional methods of TDE are shown.A new TDE method based on high-order cumulant is given. 指出了电站锅炉环境下几种传统的时延估计方法的不足，提出了一种基于高阶累积量的时延估计方法。
- The method does not depend on definite signal structure,and constructs three DOA matrixes in cumulant domain. 该算法不依赖于信号的具体结构，并构造了三个累量域DOA矩阵。
- Then cumulant invariants are used to classify bandlimited MPSK signals.The method can work with lower SNR. 并利用此基带序列的高阶累积量构造分类特征不变量,在宽信噪比范围内实现了带限MPSK信号的调制分类。
- The phase digrams of magnetic alloy are studied using variational cumulant expansion. 采用变分累积展开方法,研究了块体磁性合金的相图。
- Then, the modulation classifications of jamming signal are done by forth-order cumulant as classification features. 以信号四阶累积量为识别特征对干扰信号的调制方式进行识别。
- A new blind beamformer based on higher-order cumulant and neural network is presented in this paper. 提出了一种新的基于高阶累积量和神经网络的盲波束形成器,并对其进行了建模与仿真研究。
- A new algorithm based on third-order cumulant was proposed to detect a moving dim infrared target under heavy background. 为检测强杂波背景中的红外弱小运动目标;提出了一种基于三阶累积量的检测新方法.
- A new nonlinear BSS approach is developed by applying Edgeworth expansion and adaptive cumulant estimation into information back propagation algorithm. 将Edgeworth展开代入信息后向传输算法中,通过一种新的自适应累积量估计方法,克服了原算法指出的Edgeworth展开在盲信号分离中的缺限。
- It is shown that the horizontal and vertical factorial moments are equivalent only when they are used in combination with the cumulant variables. 发现：在一般情况下，只有在引入累积变量后，纵向阶乘矩才与横向阶乘矩相等。
- This new method only uses three Cumulant matrices, and doesn't require searching spectral peak or pairing parameters, and is easily implemented. 该算法仅需使用3个高阶累积量矩阵，而且无须谱峰搜索和参数配对，计算简单。
- A new invariants classification feature based on cyclic temporary cumulant is proposed for classification of MPSK signals. 提出一种新的循环累量不变量分类特征,来实现MPSK信号的调制样式分类。
- The experiment results showed that the 4th order cumulant could reflect the EEG pattern changes of different motor imageries. 在此基础上;进行了基于脑电四阶累积量的左右手运动意识识别和分类研究;实验结果表明;正确识别率能达到87.;5%25。
- The variance of a real-valued random variable is its second central moment, and it also happens to be its second cumulant. 方差用于表示一组数据的离散程度，也就是数据的波动情况。
- Therefore,in the study nonlinear phenomena in high energy collisions the HFM can be used only in combination with the cumulant variables. 因此,在高能碰撞非线性现象(间歇和分形)的研究中,只有采用了累积变量时,才能使用横向阶乘矩进行计算。
- In this paper,the third-order cumulant of pseudo-random code is studied without any pre-knowledge and expression is gived.The result is validated. 文中研究了在没有任何先验信息的条件下伪随机码的三阶累积量;推出了具体的表达式.;并对结果进行了验证。
- In this paper, based on 3D linear array and on the flexible definition of cumulant, a new method is proposed to achieve estimation of omnidirectional DOA. 本文基于3D立体线阵以及累量的灵活定义，实现了信号DOA的全方位估计。
