ADS : AOCS DESIGN SOFTWARE

摘要

To design an attitude control system implies bringing together a certain amount of information: satellite architecture, mass and inertia, some disturbance torque analyses. The use of an up-to-date AOCS equipment data-base is also an efficient help for such a task. On this basis a number of specific analyses are necessary to achieve an optimized design and estimate its performances : control laws and AOCS modes design, stability analyses, pointing accuracy, mass, cost and power budgets, dynamic simulations. AOCS Design Software has been designed by ALCATEL under a contract from the European Space Agency (ESA), to support and assist all the above described tasks. The core of ADS is a comprehensive database containing : AOCS current equipment, control modes, spacecraft architecture, orbits and satellites. This database is combined with an expert-system logic, which makes efficient trade-offs , based on the accumulated possible experience. ADS Data-base structure enables the efficient storage and the availability of the company AOCS experience. The user friendly interface supported by powerful 3D-displays (satellite on its orbits) increases the AOCS engineer efficiency by simplifying the inputs of the model and making easier the interpretation of the results. ADS tool can be used at any step of a project but is perfectly suited for design phases up to at least a PDR. This very powerful software has been applied and validated on several projects and can be considered now as a commercial off-the-shelf software.