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Showing 1 to 4 of 4 for “"Cross-Spectral Matrix"”.
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Accurate aeroacoustic measurements in closed-section hard-walled wind tunnels
… of the input data. Removing the diagonal of the cross spectral matrix might not be sufficient to eliminate this noise.
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Design and Development of a Hydrophone Array for an Autonomous Underwater Vehicle Capable of Real-Time Detection and Tracking of Surface Vessels
… different sizes in mission relevant environment. Cross-spectral matrix subtraction approach to subtract AUV's self noise is investigated to improve signal range and thus the detection range of these different surface vessels. This approach showed improvement in detection range of up to 350%. …
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Anomaly Detection in Aeroacoustic Wind Tunnel Experiments
… expectation by linear estimation. A covariance matrix will be constructed from experimental data to be used in the PCA-scheme. This covariance matrix represents both the strong deterministic relations dependent on experimental configuration as well as random uncertainty. Through principles of …
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Constrained Spectral Conditioning for the Spatial Mapping of Sound
… This is achieved through a merger of Conditioned Spectral Analysis (CSA) and the Generalized Sidelobe Canceller (GSC). A cross-spectral, frequency-domain filter is created using the GSC methodology to edit the CSA formulation. The only constraint needed is the user-defined, relative phase …