Abstract
The flight parameter of an aircraft moving without acceleration can be estimated by exploiting the target-generated noise received by a directional sensor consisting of three or four microphones. The Cramér–Rao lower bound is calculated to investigate the theoretical accuracy of estimates. Moreover, an algorithm is proposed which computes the maximum-likelihood estimate. Extended simulations prove the algorithm to work reliably and fast, and the estimate to be nearly unbiased and efficient when averaged over a large region of flight parameters. Results obtained with real data are included.
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