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Target motion analysis with bearings and frequencies measurements via instrumental variable estimator [passive sonar]

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4 Author(s)
Passerieux, J.M. ; Thomson-Sintra ASM, Cagnes-sur-Mer, France ; Pillon, D. ; Blanc-Benon, P. ; Jauffret, C.

Estimating position and velocity of a moving source requires at least an ownship maneuver when performing bearing-only tracking (BOT). By concurrently processing bearing and Dopplerized radiated frequencies a unique target motion analysis (TMA) solution is available without any maneuver. A simple, fast, non-time-recursive estimator, working on several unknown measured spectral lines, is presented. The statistical efficiency of such a Doppler and bearing tracking (DBT) is proved by computer simulation. Simulation results show that DBT can yield proper estimates of source trajectory: range accuracy better than 10% within at most 10 min for a source at 20 km and nine sinusoids

Published in:

Acoustics, Speech, and Signal Processing, 1989. ICASSP-89., 1989 International Conference on

Date of Conference:

23-26 May 1989