PC-BASED TELEMETRY AND COMMAND FRONT-END FOR A DISTRIBUTED SATELLITE CONTROL SYSTEM
AffiliationAvtec Systems, Inc.
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AbstractSatellite Control Systems require a front-end component which performs real-time telemetry acquisition and command output. This paper will describe a fully networked, PC-based telemetry and command front-end which supports multiple streams and is based on Commercial Off The Shelf (COTS) technology. The front-end system is a gateway that accepts multiple telemetry streams and outputs time-tagged frame or packet data over a network to workstations in a distributed satellite control and analysis system. The system also includes a command gateway that accepts input from a command processor and outputs serial commands to the uplink. The front-end can be controlled locally or remotely via the network using Simple Network Management Protocol. Key elements of the front-end system are the Avtec MONARCH-E™ PCI-based CCSDS/TDM Telemetry Processor/Simulator board, a network-based, distributed computing architecture, and the Windows NT operating system. The PC-based telemetry and command gateway is useful throughout the lifecycle of a satellite system. During development, integration, and test, the front-end system can be used as a test tool in a distributed test environment. During operations, the system is installed at remote ground stations, with network links back to operations center(s) for telemetry and command processing and analysis.
SponsorsInternational Foundation for Telemetering