Simulation in support of GPS quality assurance

Summary form only given, as follows. The global positioning system (GPS) provides continuous, worldwide position and timing information. As the user base for this service grows, ensuring the quality of future maintenance modifications and developmental upgrades becomes more important. To address this need, a GPS weapon support system (WSS) is being developed. The GPS WSS will support lifecycle activities including system analysis, software engineering, hardware engineering, test and integration, and associated management. In order to support these activities, the WSS will provide a variety of emulation and simulation environments for analysis, testing, and long range planning