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Evaluation of Conceptual Midcourse Guidance Laws for Long-Range Exoatmospheric Interceptors

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      ABSTRACT: This paper presents a comprehensive study on the performance analysis of 8 conceptual guidance laws for exoatmospheric interception of ballistic missiles. The problem is to find the effective thrust direction of interceptor for interception of short-to-super range ballistic missiles. The zero-effort miss and the generalized required velocity concept are utilized for interception of moving targets. By comparison of the 8 conceptual guidance laws, the thrust direction is suggested to be in the direction of generalized velocity-to-begained, or constant velocity-to-be-gained direction, rather than to be in the direction along zero-effort miss, or that of linear optimal solution for long-to-super range interception. Even for short coasting ranges, the generalized velocity-to-be-gained may be utilized because of reasonable computational burden for required velocity rather than the numerical computation for zero-effort miss or linear optimal solution with the same miss distance error. In addition, the fuel consumption of the suggested direction has less sensitivity due to estimation error in intercept time. The guidance law based on constant velocity-to-be-gained direction and the optimal solution are suitable for satellites launch vehicles and space missions.

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      Most cited references 22

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            Author and article information

            Tehran Tehran orgnameTarbiat Modarres University orgdiv1Faculty of Mechanical Engineering orgdiv2Aerospace Group Iran
            Role: ND
            Role: ND
            Journal of Aerospace Technology and Management
            J. Aerosp. Technol. Manag.
            Departamento de Ciência e Tecnologia Aeroespacial (São José dos Campos, SP, Brazil )
            March 2017
            : 9
            : 1
            : 101-115
            S2175-91462017000100101 10.5028/jatm.v9i1.718

            This work is licensed under a Creative Commons Attribution 4.0 International License.

            Figures: 0, Tables: 0, Equations: 0, References: 22, Pages: 15
            Product Information: SciELO Brazil


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