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Influence of roll-pitch seeker DRR and parasitic loop on Lyapunov stability of guidance system

Journal of Systems Engineering and Electronics 2021年第6期32卷 1509-1526页

作者： LI Yue WEN Xianghua LI Wei WEI Lan XIA Qunli School of Aerospace Engineering Beijing Institute of TechnologyBeijing 100081China No.5718 Factory Chinese People’s Liberation ArmyGuilin 541002China

This paper focuses on the influence of the disturbance rejection rate(DRR)and parasitic loop parameters on the stability domain of the roll-pitch seeker's guidance *** DRR models of the roll-pitch seeker caused by different types of disturbance torques and the scale deviation of different sensors are *** optimal DRR model of the roll-pitch seeker,which contains the scale deviation model,is proposed by formula *** model of the roll-pitch seeker's guidance system is established and equivalently simplified by the dimensionless *** Lyapunov stability criterion for stability analysis of the guidance system is given by means of the passivity theorem and related definitions and lemmas.A simplified model of the roll-pitch seeker's guidance system,which is suitable for the Lyapunov stability criterion,is established by formula derivation and equivalent *** conditions that satisfy the Lyapunov stability criterion are *** simulation with Nyquist plots is used to analyze the influence of different DRR parameters on the stability domain of the roll-pitch seeker's guidance *** results of this paper can provide reference for the stability analysis of systems related to the roll-pitch seeker.

关键词： roll-pitch seeker guidance system disturbance rejection rate(DRR) parasitic loop Lyapunov stability Nyquist analysis

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Line-of-sight rates extraction of roll-pitch seeker under anti-infrared decoy state

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Journal of Systems Engineering and Electronics 2021年第1期32卷 178-196页

作者： LI Yue HE Lei XIA Qunli School of Aerospace Engineering Beijing Institute of TechnologyBeijing 100081China Sichuan Institute of Aerospace Systems Engineering Chengdu 610100China

In this paper,the method of extracting guidance information such as the line-of-sight(LOS)rates under the anti-infrared decoy state for the roll-pitch seeker is *** systems which are used to describe the angles transform are *** LOS angles reconstruction model of the roll-pitch seeker in inertial space is established.A Kalman filter model for extracting LOS rates of the roll-pitch seeker is *** this model,the target performs constant acceleration(CA)model *** error model of LOS rates extraction under infrared decoy state is *** existing methods of extracting LOS rates under anti-infrared decoy state are listed in this *** from the existing methods,a novel method that uses extrapolated values of target accelerations as filter measurements is proposed to solve the guidance information extraction problem under the anti-infrared decoy *** simulations are conducted to verify the effectiveness of the proposed method under different target maneuvering models such as the CA model,the CA extended model and the singer *** simulation results show that the proposed method of extracting guidance information such as LOS rates for the rollpitch seeker under the anti-infrared decoy state is effective.

关键词： line-of-sight(LOS)rate extraction roll-pitch seeker anti-infrared decoy Kalman filter target maneuver

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维普期刊数据库

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Line-of-sight Estimation for Missile with roll-pitch seeker

Line-of-sight Estimation for Missile with Roll-Pitch Seeker

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第37届中国控制会议

作者： Xiao Liu Bo Mo Beijing Institute of Technology

In this paper, a tracking and estimation strategy is proposed to obtain the line of sight（LOS） rate of missile with roll-pitch seeker. The dynamic model of roll-pitch seeker is built to provide detailed mechanisms analysis, and proper inertial design is proposed to decrease dynamic couplings and torque disturbances. Tracking principles are then presented with consideration of missile motion disturbances and couplings among control channels. Based on the above conditions, LOS estimation model is built based on Unscented Kalman Filter（UKF）. Finally, the results and performance of the LOS estimation method for roll-pitch seeker are compared with the direct LOS output of roll-pitch seeker as well as pitch-yaw seeker.

关键词： roll-pitch seeker Unscented Kalman Filter LOS estimation tracking principles

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