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- With flexible definition of fourth order cumulant of the array output signal, the spectral peak searching is not necessary for the new separable approach. 通过巧妙定义阵列输出四阶累积量矩阵,该方法不需要谱峰搜索就可以估计信号二维到达方向。
- 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 defect has been overcome in this paper,which channel equalization can be not directly applied because the third order cumulant of symmetrically distributed signal is zero. 计算机仿真表明,该算法实现简单,收敛效果好,稳态剩余误差小,其性能优于已有的一些同类算法。
- This paper introduces the higher order cumulant(HOC) and analyzes the theoretical basis on which the cumulant extracts the features of complex coupling signals and non-linearity. 介绍了高阶累积量理论,分析了它提取复杂耦合信号和非线性特性的理论基础。
- It will approach to Gaussian distribution after accumulating sea clutter along with one dimensional range images, which can achieve signal detection in advantage of higher order cumulant and spectra. 经过非相参积累的海杂波沿距离像的分布接近高斯分布，沿距离像计算回波信号的高阶累积量、高阶谱，可以实现目标的检测。
- Using 4th order cumulant, the author constructed a spatial signature matrix , and then proved that multi-user’s spatial signature can be obtained through eigen decomposition of the matrix. 作者利用四阶累积量构造了一个空间特征估计矩阵，并证明了对该矩阵作特征分解可以得到各用户的空间特征。
- Due to using the fourth order cumulants (FOC), the number of signals that can be coped with may be larger than the number of sensors in the array, and our algorithm is insensitive to Gaussian noise. 由于采用了四阶累量，该算法可以估计出比阵元数更多信号的波达方向，并且对高斯噪声不敏感。
- Time is sometimes called the fourth dimension. 时间有时被称为第四度空间。
- Mars is the fourth planet in order from the sun. 火星是太阳系的第四颗行星。
- 3 Fourth order cumulant(FOC) different slice-based adaptive dynamic line enhancement algorithms are presented. 3 提出了基于四阶累积量不同切片的间接自适应动态线谱增强算法。
- fourth order cumulants diagonal slice spectra 四阶累积量对角切片谱
- In order not to be late, she cut across the fields. 为了不迟到，她抄近路穿过田野。
- We started early in order to arrive before dark. 为了在天黑前到达，我们很早就动身了。
- Closed Loop Identification Based on Three Order Cumulant 基于三阶累积量的闭环辨识
- I am a soldier of the fourth cavalry. 我是第四骑兵部队的一员。
- Reserve double room June fourth to tenth inclusive. 预订双人房间，六月四日至十日，共六晚，望订妥复电。
- A new algorithm based on higher order cumulants is proposed for classification of MPSK signals in multipath channel environments. 针对多径信道中MPSK信号的调制分类问题,提出一种新的基于高阶累量的分类算法。
- The 800m is the fourth event of the afternoon. 800米赛是下午的第四项比赛。
- According to the fact that higher order cumulate retains phase information, a method of wavelet estimation based on bispectrum of seismic signals is provided in this paper. 根据高阶累积量中保留有信号相位信息的性质,给出了一种基于地震信号双谱的子波估计方法。
- The twins will enter the fourth grade this fall. 这对双胞胎今年秋季将升到四年级。
