1.2 成分分析基本原理 1.2.1 去相关与PCA原理 线性去相关(Decorrelation)就是对x作线性变换,去除变量之间的相关性,使得变换后 数据的协方差矩阵对角化。
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Decorrelation Stretch 去相关拉伸 ; 然后进行去相关拉伸
surround decorrelation 环绕声去相关
Frequency decorrelation [雷达] 频率去相关
decorrelation radar 抗相关干扰雷达
Polarization decorrelation 极化去相关
target decorrelation 目标去关联
However. The effective aperture of array will be reduced because the ability of decorrelation was gain based on sacrificing the effective number of arrays, and, in the circumstance of lower SNR(signal-noise-ratio) , the estimation performance is deteriorated.
对相干信号源的DOA估计具有理想的性能,其计算量小,便于实现,但它是通过牺牲阵列有效阵元数来换取解相干能力的,阵列孔径有一定的损失,且在低信噪比条件下算法性能较差。
参考来源 - 相干信源DOA估计算法研究Since the correlation matrix of a signal in wavelet domain has sparse structure, the convergence speed of equalizer can be improved by using this good decorrelation ability of wavelet transform.
由于信号经过小波变换后的自相关阵呈稀疏的带状结构,因此可以利用小波变换的这种去相关能力来提高该均衡器的收敛速度。
参考来源 - 小波和神经网络在自适应均衡中的算法研究The testing results show that 10-m accuracy in elevation can be obtained with InSAR. The main limiting factors are temporal decorrelation and atmospheric contamination.
研究结果表明:卫星雷达干涉DEM的高程精度可以达到10m以内,并且受时间失相关和大气延迟等因素的影响较为严重。
参考来源 - 使用SAR影像生成DEM的方法研究与精度分析·2,447,543篇论文数据,部分数据来源于NoteExpress
以上来源于: WordNet
In the third chapter, the concept of spatial decorrelation is explained.
在第三章中,首先解释了空间解相关的概念。
The improved united ambiguity decorrelation is proposed by analyzing the deficiency of united ambiguity decorrelation algorithms.
针对联合降相关算法中存在的缺陷,提出了改进的联合降相关算法。
Based on NLMS, this paper proposes a decorrelation NLMS algorithm (DC-NLMS) by employing auto-correlation of the input speech signal.
在NLMS算法的基础上,从语音信号相关性的角度出发,提出了一种去相关NLMS算法(DC - NLMS)。
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