2007•Journal of Nanjing University of Science and TechnologyRequires access

Principle of Navigation by CNS and Research on SINS/CNS Integrated Navigation System

Naigang Cui

Abstract

Principles of navigating by CNS(celestial navigation system),and SINS(strap-down inertial navigation system)/CNS are analyzed.Based on these principles,equations of state and observation and errors in measurement are derived,and the project of SINS/CNS is put forward.The integrated navigation system instantly revises the SINS by the navigation information of CNS.Results of math-simulation on sub-real traces of hypersonic reentry vehicle,proves that the integrated navigation system possesses advantages on grasping at the infomation of attitude in higher accuracy and feasibility of the project.

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Key concepts: Celestial navigation, Inertial navigation system, Navigation system, Computer science, Wind triangle, Dead reckoning, Air navigation, State (computer science)