Regular Papers

International Journal of Control, Automation and Systems 2009; 7(6): 922-929

Published online December 6, 2009

https://doi.org/10.1007/s12555-009-0608-7

© The International Journal of Control, Automation, and Systems

Modeling of Target Detection in Local Search for Phased Array Radar Tracking

Won-Yong Choi and Sun-Mog Hong*

Kyungpook National University, Korea

Abstract

The local search in tracking with a phased array radar can be characterized in terms of the events that can occur in the search and the probabilities of those events. In predicting the event probabilities, it is required to evaluate the expectation of a product of target detection probabilities for repeated beam-positioning in the local search. In this paper, we present a model of the local search and derive an expression for the expectation of the detection-probability product. An expression of angular measurement accuracy of target detection is also presented. Evaluation of the expressions requires nu-merical integration, which is computationally expensive. Approximations to the expressions are pre-sented in analytic form, which are fairly accurate.

Keywords Beam-pointing error, detection probability, local search, phased array radars.

Article

Regular Papers

International Journal of Control, Automation and Systems 2009; 7(6): 922-929

Published online December 1, 2009 https://doi.org/10.1007/s12555-009-0608-7

Copyright © The International Journal of Control, Automation, and Systems.

Modeling of Target Detection in Local Search for Phased Array Radar Tracking

Won-Yong Choi and Sun-Mog Hong*

Kyungpook National University, Korea

Abstract

The local search in tracking with a phased array radar can be characterized in terms of the events that can occur in the search and the probabilities of those events. In predicting the event probabilities, it is required to evaluate the expectation of a product of target detection probabilities for repeated beam-positioning in the local search. In this paper, we present a model of the local search and derive an expression for the expectation of the detection-probability product. An expression of angular measurement accuracy of target detection is also presented. Evaluation of the expressions requires nu-merical integration, which is computationally expensive. Approximations to the expressions are pre-sented in analytic form, which are fairly accurate.

Keywords: Beam-pointing error, detection probability, local search, phased array radars.

IJCAS
June 2024

Vol. 22, No. 6, pp. 1761~2054

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