Assuming stationary signals and performing long-time averaging of a cross-spectral matrix (CSM), the noise contamination will be concentrated on the CSM diagonal. When the CSM is used for traditional frequency-domain beamforming, Diagonal Removal (DR) will avoid use of the contaminated diagonal. ...
Cross spectral matrixDaniell's methodFrequency domainRotating beamformingIn microphone array techniques the cross spectral matrix is used to localize acoustic sources. In this paper Daniell's method is revisited to average the cross spectral matrix of the sensor signals in the frequency domain. It is...
Thespectrum density matrixof the proposed model was constructed and its properties are investigated. 提出一种基于Poisson过程的桥梁交通激励模型,建立了该激励模型的谱密度矩阵,并研究了这种激励模型的性质;基于随机振动理论和平稳随机过程理论,分析了这种激励模型作用下桥梁结构的动响应。
tion matrix of Y ( ) and Y ( ,z) can be described as R = E [ Y( n) l, H( )] = APDHAH. (10) In Eq.( 10 ) ,influence of noises is suppressed and tho se com po nents co rrespo ndi ng to no ises no lo nger ...
A frequency offset hypothesis is determined. An interchannel interference ("ICI") matrix based on the frequency offset hypothesis is generated. Pilot channel estimates ba... JP Panicker,Boudreau, Gary D.,Mcgowan, Neil,... 被引量: 19发表: 2013年 加载更多...
spectral density matrix 谱密度矩阵 cumulative spectral density 累积光谱密度 reactivity spectral density 反应性谱密度 spectral voltage density 【电】 光谱电压密度 energy spectral density 能谱密度 相似单词 spectral a. 光谱的,鬼怪的 density n. 1.[U]密集,稠密,密度,浓度 2.[C,U](物)密度 3...
6) cross-spectral density matrix 互谱密度矩阵 补充资料:功率谱密度估计 随机信号的功率谱密度用来描述信号的能量特征随频率的变化关系。功率谱密度简称为功率谱,是自相关函数的傅里叶变换。对功率谱密度的估计又称功率谱估计。平稳随机信号x(t)的(自)功率谱Sxx(ω)定义为 ...
The intrinsic parameter can generally be represented by the matrix in Equation (2), where f is the focal length and 𝑐𝑥cx and 𝑐𝑦cy constitute the coordinate of the principal point. It should be noted that the camera model used in the whole process is PINHOLE. 𝐾=⎡⎣⎢...
Performance improvement of a novel zero cross-correlation code using Pascal's triangle matrix for SAC-OCDMA systems In order to minimize the receiver complexity and improve the performance of the spectral amplitude coding - optical code division multiple access system, a... S Driz,B Fassi,C Kand...