Aircraft flight parameter estimation using acoustical Lloyd's mirror effect
K.W. Lo, Stuart William Perry, B.G. Ferguson · IEEE Transactions on Aerospace and Electronic Systems · 2002
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.