This paper only does research on adaptive blind source separation algorithm in two mixture models ? 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。
On the assumption that imagery pixel follows non - normal distribution in high resolution imaging , a new method of phase errors estimation based on higher - order statistics is proposed for sar imagery autofocusing 在高分辨成像情况下，基于图像像素强度服从非高斯分布的假设，提出了一种基于三阶累积量的自聚焦方法。
Second , since there are lots of redundant items in the fourth - order cumulant matrices , we introduce an algorithm of direction - of - arrival estimation based on the maximal set of nonredundant cumulant ( msnc ) 其次，由于利用四阶累积量进行波达方向估计时计算量很大，文中提出了一种基于最大非冗余累量集合的方向估计方法。
In the thesis , three kinds of blind beamforming algorithms were introduced , which are the cumulant - bascd blind beamforming , the array structure - based blind beamforming , and the constant modulus algorithm 论文中首先详细介绍了三类盲波束形成算法：基于累积量的盲波束形成算法、基于基阵结构的盲波束形成算法和常模算法。
( 4 ) approaches for texture retrieval based on high - order cumulants , multi - channel gabor filters and lifting wavelet transform are suggested separately which extract the texture features to implement the texture queries 算法对均匀纹理的分类快速有效。四、提出基于高阶累积量、多通道gabor滤波以及提升小波变换的纹理检索算法。
In these methods , the approach based - on high - order cumulants utilize the local window ' s correlation of image to compute the three - order cumulants as features . and the other two methods are perfect in spatial - frequency localization 在基于高阶累积量的方法中，利用图象中象素的窗口邻域具有相关性的特点计算图象的三阶累积量作为纹理的特征。
Abstract : based on signal processing theory about high - order cumulants ( hoc ) , a fast , inexpensive and unbiased cumulants estimation approach is proposed for the detection of multifrequency signals between offices connected to telephone networks 文摘:基于高阶累积量的信号处理理论，提出了一种快速、简便且无偏估计的方法对多频信号进行有效的检测。
At the end of this paper some direction - finding and aperture extension algorithms by cumulants are emphatically researched and a colligate direction - of - arrival estimation scheme suits to deformed uniform circular arrays is presented 最后部分对利用高阶累积量的测向算法及阵列扩展方法进行研究，并提出一种非完整均匀圆阵的doa估计算法的综合应用方案。
This paper introduces some algorithms for background extraction , and presents a new algorithm for background extraction based on image block energy and high order statistic theory ( hos ) , and background reconstruction constraint conditions are setup 摘要介绍了几种常用的背景提取算法，提出一种新的算法，利用图像块能量、高阶累积量建立背景约束的准则。
We separate the linear mixed signals using the fourth order cumulants and independent component analysis technology . the source signals , which are separated , are applied to speaker recognition and they can be well recognized 本文运用四阶累积量法和独立分量分析技术成功地将线性混叠语音信号分离，再将分离出的源信号用于说话人识别，可较好地识别出说话人。
