Numerical Optimization and Parametric Study of Cooperative Salvo Attack Using Particle Swarm Optimization Algorithm

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Shahadati, Mohammad | 2016

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 49444 (45)
University: Sharif University of Technology
Department: Aerospace Engineering
Advisor(s): Saghafi, Fariborz
Abstract:
In this research work, several guidance laws have been utilized and validated, considering the contraints on the missslie seeker angle and maximum acceleration, in order to simultaneously intercept the so-called Close-in Weapon System (CIWS) by multiple missiles. First of all, the existing guidance laws for salvo-attack are reveiwed. Then, a simulation program has been developed and validated for the misslie and CIWS as a five and two degrees of freedom systems, respectively. Optimization of the system is then carried out by the method of Particle Swarm Optimization, considering the given constraints. In the next step, for the improvement of the optimized guidance law, paramertic study has been carried out on the existing methods for time to go and the desired time estimation. Including the desired time in the guidance law, a new guidance law is presented. Using simulation results, two guidance laws, analytical and numerical, have been compared and the advantage of the new method is shown. Considering the target movement, the time to go estimation and the guidance law are modified leading to a correction term that prevent the seeker angle to exceed its limitations
Keywords:
Numerical Optimization ; Particles Swarm Optimization (PSO) ; Parametric Study ; Cooperative Attack ; Salvo Attack

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