Aircraft flight parameter estimation using acoustical Lloyd'smirror effect |
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Authors: | Lo KW Perry SW Ferguson BG |
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Institution: | Defence Sci. & Technol. Organ., Pyrmont, NSW ; |
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Abstract: | A model is developed for the acoustical Lloyd's mirror effect observed in the output time-frequency distribution of a microphone located near the ground during the transit of a jet aircraft. The feasibility of using this effect for flight parameter estimation is assessed by a simple Cramer-Rao lower bound analysis. The nonlinear least-squares method and the generalized Hough transform method are formulated for flight parameter estimation. The performances of both methods are evaluated and compared using real acoustic data |
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