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Robust horizontal line-of-sight rate estimator for sea skimming anti-ship missile with two-axis gimballed seeker

Robust horizontal line-of-sight rate estimator for sea skimming anti-ship missile with two-axis gimballed seeker

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A robust horizontal LOS (line-of-sight) rate estimator for a sea skimming ASM (anti-ship missile) is proposed. Based on the homing geometry, a precise LOS rate dynamics model for a two-axis gimballed seeker is derived. A new LOS rate estimator is designed by applying a robust Kalman filter to the LOS rate dynamics model. The proposed filter takes account of roll coupling effects and seeker detection gain uncertainties. Simulation results show that the proposed filter performs very well and guarantees robustness against parameter uncertainties.

Inspec keywords: filtering theory; Riccati equations; estimation theory; missiles; ships; signal detection; Kalman filters

Other keywords: rate estimator; antiship missile; robust horizontal LOS; roll coupling effect; rate dynamics model; two-axis gimballed seeker; homing geometry; Kalman filter; sea skimming ASM; line-of-sight

Subjects: Signal processing theory; Other topics in statistics; Filtering methods in signal processing; Signal detection; Other topics in statistics

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