2009•Jisuanji fangzhenRequires access

Design and Simulation of Guidance Law Based on Non-singular Terminal Sliding Mode for Guided Bomb with INS/GPS

Hang Wang

Abstract

According to the characteristics of the bomb with INS(Inertial Navigation System)/ GPS(Global Positioning System), a robust guidance law with angular constraint based on non-singular terminal sliding mode(NTSM) was proposed.By means of NTSM guidance law, a cliffy ballistic trajectory was obtained in terminal guidance phase to reduce influence of altitude geodesic error, and line of sight rate measurement noise was restrained to ensure high guidance precision of bomb in large range airspace of flight condition.Then simulation was carried out for a certain type of guided bomb, and simulation results confirm the efficiency and availability of the NTSM guidance, which in turn provide an effectual method for the design of guided bomb control and guidance system.

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Available abstract

Key concepts: Global Positioning System, Proportional navigation, Inertial navigation system, Mode (computer interface), Missile guidance, Trajectory, Line-of-sight, Constraint (computer-aided design)