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Improving the Resolution of Bearing in Passive Sonar Arrays by Eigenvalue Analysis

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Title: Improving the Resolution of Bearing in Passive Sonar Arrays by Eigenvalue Analysis
Author: Johnson, Don; DeGraaf, Stuart
Type: Tech Report
Keywords: signal processing; passive methods; sonar; noise; array processors; Eigenvalue analysis; estimation
Citation: D. Johnson and S. DeGraaf, "Improving the Resolution of Bearing in Passive Sonar Arrays by Eigenvalue Analysis," Rice University ECE Technical Report, no. 8102, 1981.
Abstract: A method of improving the bearing-resolving capabilities of a passive array is discussed. This method is an adaptive beamforming method, having many similarities to the minimum energy approach. The evaluation of energy in each steered beam is preceded by an eigenvalue-eigenvector analysis of the emperical correlation matrix. Modification of the computations according to the eigenvalue structure result in improved resolution of the bearing of acoustic sources. The increase in resolution is related to the time-bandwidth product of the computation of the correlation matrix. However, this increased resolution is obtained at the expense of array gain.
Date Published: 1981-08-01

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  • ECE Publications [1082 items]
    Publications by Rice University Electrical and Computer Engineering faculty and graduate students
  • DSP Publications [508 items]
    Publications by Rice Faculty and graduate students in digital signal processing.