Title :
Bearings-only tracking with nonGaussian measurement errors
Author :
Passerieux, J.K.
Author_Institution :
Thomson Sintra ASM, Valbonne, France
Abstract :
In passive sonar, bearing tracks that are used for bearings-only tracking (BOT) are sometimes contaminated by erroneous measurements or outliers which may severely degrade performance of BOT when standard unweighted least squares are used. Robustness versus outliers can be significantly improved by Huber´s (1964) minimax robust approach or by an efficient discarding of outliers based upon a Viterbi dynamic programming algorithm. Results of computer simulation are shown and discussed
Keywords :
acoustic signal processing; dynamic programming; measurement errors; sonar; tracking; Huber minimax robust approach; Viterbi dynamic programming algorithm; bearings-only tracking; computer simulation; nonGaussian measurement errors; outliers; passive sonar; unweighted least squares; Degradation; Dynamic programming; Least squares methods; Measurement errors; Measurement standards; Minimax techniques; Pollution measurement; Robustness; Sonar measurements; Viterbi algorithm;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1991. ICASSP-91., 1991 International Conference on
Conference_Location :
Toronto, Ont.
Print_ISBN :
0-7803-0003-3
DOI :
10.1109/ICASSP.1991.150656
