Adaptive Resolution Of Overlapping Echoes
Tianchang Shan, Alfred Marcel Bruckstein, T. Kailath · 2005
We present a new adaptive method for estimating the arrival times for overlapping pulses with a priori known shape, from the noisy observations received by a sensor. The method is an adaptive version of an off-line technique based on the eigenstructure method for resolution of overlapping echoes. This problem is important in various applications such as radar and sonar data processing, geophysical/seismic exploration and biomedical engineering. In these applications a known signal is used to probe a medium and the returning response - in the form of delayed overlapping echos in noise - has to be processed to yield information on the nature and location of scatterers.