Seeker model identification system and guidance control simulation system applying same

Abstract

The invention discloses a seeker model identification system based on a parasitism loop. The system comprises a simulation signal generation module, simulation equipment and a model identification module. A simulation frequency sweeping input signal is transmitted to serve as theoretical missile target sight angular velocity information through the simulation signal generation module and guides the simulation equipment to work. A seeker in the simulation equipment outputs the actual missile target sight angular velocity, a seeker model is obtained through the model identification module according to identification of the theoretical missile target sight angular velocity and the actual missile target sight angular velocity, and in other words, seeker transfer functions based on the seeker isolation parasitism loop are obtained. The seeker model obtained through identification is applied to design of a guiding system, and digital simulation precision of the guiding system is improved. Furthermore, digital simulation of a guiding control loop can be made not to be dependent on a seeker semi-physical simulation system, and all-working-condition multi-trajectory guiding control simulation can be achieved only through the digital simulation form, thus the work amount of semi-physical simulation is reduced, and research on the seeker and the guiding control system is digitalized.

Description

technical field [0001] The invention relates to a measuring and calculating system of a missile seeker transfer function, in particular to a seeker model identification system and a guidance control simulation system using the same. Background technique [0002] As a tracking and detection system, the seeker needs to provide the line-of-sight angular velocity to the missile control system so that it can control the missile to fly to the target according to the predetermined guidance law. As an important part of advanced precision-guided weapons, the seeker needs to realize the stability of the seeker detector in the inertial space while detecting the target, and at the same time provide information on the line-of-sight angle and line-of-sight angular velocity information that can be used for guidance. Realize the interception and tracking of the target, output the information needed to realize the guidance law, and eliminate the influence of the projectile disturbance on the...

AI Technical Summary

Problems solved by technology

[0006] Therefore, the research on seeker isolation in the prior art is far from enough for practical engineering applications. The seeker isolation cannot be ignored or simplified. Research and analysis should be done on the basis of fully considering the seeker isolation. The working conditions of the seeker, various simulations and working conditions, ballistic analysis

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