Uniform Interface for Multiple Satellite Systems Study

摘要

This report attempts to model a multi-satellite ground telemetry processing system (MSG) for reducing the level of effort associated with extending a system to supporting new satellites. The use of object-oriented (OO) hierarchy and abstraction reduces the potential for multiple branches and layers of subclasses without losing generality and thus maximizes code reuse. The model was developed using ordinary, well documented OO patterns combined with a novel approach for retrieving class attributes external to the source code. A database management system with database and query language capabilities is used for retrieving attributes during system initialization. This allows chaining classes together for building a processing structure without hard-coding anything more than the abstract classes being used. A simplified version of the model was tested in the proof-of-concept and shown to work correctly. In this test, it was possible to support a new satellite just by inserting attribute information into the database without any recompilation of the code.