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A Modified Weighted Least Squares Range Estimator for ASM (Anti-Ship Missile) Application  

Whang Ick-Ho (Guidance and Control Department 3-1-3, Agency for Defense Development)
Ra Won-Sang (Guidance and Control Department 3-1-3, Agency for Defense Development)
Ahn Jo-Young (Guidance and Control Department 3-1-3, Agency for Defense Development)
Publication Information
International Journal of Control, Automation, and Systems / v.3, no.3, 2005 , pp. 486-492 More about this Journal
Abstract
A practical recursive WLS (weighted least squares) algorithm is proposed to estimate relative range using LOS (line-of-sight) information for ASM (anti-ship missile) application. Apart from the previous approaches based on the EKF (extended Kalman filter), to ensure good convergence properties in long range engagement situations, the proposed scheme utilizes LOS rate measurements instead of conventionally used LOS angle measurements. The estimation error property for the proposed filter is investigated and a simple error compensator is devised to enhance its estimation error performances. Simulation results indicate that the proposed filter produces very accurate range estimates with extremely small computations.
Keywords
Anti-ship missiles; EKF; homing guidance; range estimation; WLS;
Citations & Related Records

Times Cited By Web Of Science : 5  (Related Records In Web of Science)
Times Cited By SCOPUS : 4
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