Author(s): B. Rama Devi, Dr.K.RajaRajeswari, Dr.S.Koteswara Rao
Published in: International Journal of Engineering Research & Technology
License: This work is licensed under a Creative Commons Attribution 4.0 International License.
Volume/Issue: Vol.2 - Issue 10 (October - 2013)
The passive target tracking using bearings-only measurements is studied for several underwater applications. For submarine (own ship) to submarine (target) application, Pseudo Linear Estimator and its variants are developed for various situations. The algorithm is extended to Electronic Surveillance Measures in Electronic Warfare / Intercept sonar target tracking application, where the measurements are highly aperiodic. In underwater, prior information of the target motion parameters will not be available. Therefore, Pseudo Linear Estimator is developed in such a way to work without initialization of target state vector. The pseudo measurement tracking filter manipulates the original nonlinear measurement algebraically to obtain the linear like structured measurement. The Pseudo Linear Estimator is projected in such a way that it does not require any initial estimate at all and at the same time offers all the features of extended Kalman filter based pseudo linear filter, namely sequential processing, flexibility to adopt the variance of each measurement.
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