Inertial navigation system for a micro unmanned air vehicle

摘要

This paper discusses the design of a Miniature Aided Inertial Measurement Unit (MAIMU) for a microunmanned air vehicle (MUAV). ^Due to the severe weight and volume constraints imposed on MUAVs, an innovative electronic and mechanical design is required. ^The inertial sensor cluster required for both stabilization and navigation must be small, lightweight and low-power. ^These requirements can be met by using micromachined and new low power FOG sensors. ^Long term accuracy is also required, and can be provided by a number of devices including small low power GPS. ^The challenge is to package the elements of inertial sensors, navigation aids and processor in a small volume requiring extremely low power (1 W) that can become an integral part of the airframe structure. ^The design activity must focus on what scale of integration is required to meet the objectives. ^The performance obtainable and the factors affecting the choice of such a navigation system are discussed. ^The conclusion reached is that such a system is feasible. ^(Author)