Cross power spectral density (CPSD)Direction of arrivalOrthogonal frequency-division multiplexing (OFDM)Underwater acoustic communicationsIn underwater acoustic communications, beamforming is often used to improve the detection performance of a receiver. For beamforming, there have been methods presented in...
5)CPSD互功率频谱密度函数 6)NCPSD (normalized cross-power spectral density)归一化互功率谱密度 延伸阅读 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(...
We investigate the connection between the interaction energy function of ΨH and the cross-power spectral density (CPSD) of two complex valued signals. In particular, this link permits to use this operator for estimating the CPSD. We illustrate the interest of ΨH as a similarity between a ...
5) CPSD 互功率频谱密度函数6) NCPSD (normalized cross-power spectral density) 归一化互功率谱密度补充资料: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...
Coherence based methods can be improved when the cross power spectral density (CPSD) of correlated noise signals is available. In this paper, we propose a new method for estimation of the CPSD of the noise, which is based on the minimum tracking technique. Despite the fact that the proposed...
Coherence-based methods can be improved when the cross power spectral density (CPSD) of noise is available. In this paper, we propose a two channel noise reduction method using spatial information controlled recursive averaging method for estimating noise CPSD. The noise CPSD is updated by ...
Detection of cross-correlations by cross power spectral density (CPSD) analysis applied to PRSA transformed signals: aDaniela, CasatiTamara, StampalijaKonstantinos, RizasEnrico, FerrazziCristina, MastroianniEleonora, RostiMariachiara, Quadrifoglio
An algorithm based on cross power spectral density (CPSD) for multi-channel fire detection signals is presented. Experiments show that this algorithm is suited for both smoldering fire and open fire, except for TF5. CPSD algorithm can use information of several signals...
A number of investigators have discussed the use of two-detector cross power spectral density (CPSD) measurements to obtain the velocity of an axially propagating perturbation of the moderator density in a boiling water reactor. The basis of the measurements is the view that the detector response ...
Next, the system computes a cross-power-spectral-density (CPSD) between the first and second frequency-domain signals to obtain a phase angle versus frequency graph between the two frequency-domain signals. The system subsequently extracts the slope of the phase angle versus frequency graph, and ...