Abstract
The acoustic signal from a low flying aircraft received by ground-based microphone array is characterized by the interference fringe pattern which is caused by reflection of the ground. In this paper, a model is developed to estimate the parameters of an aircraft's motion with the assumption that the aircraft flies in a straight line at a constant height. The model estimate the speed and height of the aircraft based on the different time of arrival due to the multipath delay at different locations. And the short-time cepstrum method is adopted to estimate the multipath delay accurately. To evaluate the performance of the model, the experimental results and error analysis are presented.
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