A Satellite-Ground Integration Test Scheme for Spacecraft Attitude and Orbit Control System Based on 1553B Bus Architecture

The integration test of spacecraft attitude and orbit control system (AOCS) is an important means to confirm whether the design of the system meets the mission requirements throughout the whole process of system development. The AOCS based on 1553B bus architecture is gradually applied to Chinese spacecraft. In this paper, the status of AOCS integration test and the characteristics of the AOCS based on 1553B bus architecture are analyzed and a satellite-ground integration test scheme for AOCS based on 1553B bus architecture is proposed. The scheme of testability and ground environment for four types of integration test are introduced and the technical features of sensor closed-loop method, actuator closed-loop method and component RT simulation method are emphasized. The application of the test scheme for AOCS of the satellite is also given. The test scheme has the advantages of universality, expansibility, convenience and reliability, which can improve the test efficiency and quality of AOCS significantly.