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This paper proposed a high resolution algorithm using single vector hydrophone based on moving sources passing characteristic measuring system. The algorithm transfers the time domain result of the hydrophones into virtual array with spatial distribution characteristics and specified interval between array elements. With the virtual array, positioning with high resolution can be obtained by the algorithm...
The small degrees of freedom (DOFs) and low SNR of incoming signal lead to direction of arrival (DOA) estimation performance degradation. A spacetime signal processing method for DOA estimation is presented. This method takes advantage of the spatial and temporal statistics of the incoming signal, expanding the dimensions of covariance matrix by increasing the time delay taps which can reduces the...
Huge structures navigating underwater always have multi radiated noise sources distributed on different part. Therefore, noise source positioning is regarded as the core of noise control. In order to make the measuring system more effective, a new method for underwater near field moving sources is proposed in this paper. The new method establishes a mathematical model based on the correlation between...
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