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Accounting for Nonlinear Ship Motion in Navigational al Support of Submarine Ballistic Missile Launches

Authors: Antsev G.V., Lysenko L.N., Petrov V.A. Published: 22.04.2019
Published in issue: #2(125)/2019  

DOI: 10.18698/0236-3941-2019-2-4-20

 
Category: Aviation and Rocket-Space Engineering | Chapter: Aircraft Dynamics, Ballistics, Motion Control  
Keywords: nonlinear ship motion models, optimum filtering, ballistic missile, submarine, inertial navigation system, pre-launch sequence, using velocity to determine initial conditions

The paper attempts to solve the problem of determining initial conditions in terms of submarine ballistic missile velocity by means of an optimum Wiener filter. We provide solutions for known and proposed empirical models of nonlinear ship motion. We show that for a generic pre-launch sequence it is possible to considerably increase the accuracy of solving the initial velocity determination problem by exploiting the proposed model of modified nonlinear ship motion

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