Modeling and Simulation of Satellite Subsystems for End-to-End Spacecraft Modeling

During the past ten years, the Air Force Research Laboratory (AFRL) has been simultaneously developing high-fidelity spacecraft payload models as well as a robust distributed simulation environment for modeling spacecraft subsystems. Much of this research has occurred in the Distributed Architecture...

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Bibliographic Details
Main Authors: Schum, William K, Doolittle, Christina M, Boyarko, George A
Format: Report
Language:English
Subjects:
ARTIFICIAL SATELLITES
Computer Programming and Software
DASL(DISTRIBUTED ARCHITECTURE SIMULATION LABORATORY)
DISTRIBUTED INTERACTIVE SIMULATION
END-TO-END SATELLITE SIMULATION
MODELING
POWER
SATELLITE ATTITUDE
SATELLITE COMMUNICATIONS
SATELLITE SUBSYSTEMS
SPACE MISSION ANALYSIS
SPACECRAFT MODELING
Test Facilities, Equipment and Methods
Unmanned Spacecraft
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Summary:During the past ten years, the Air Force Research Laboratory (AFRL) has been simultaneously developing high-fidelity spacecraft payload models as well as a robust distributed simulation environment for modeling spacecraft subsystems. Much of this research has occurred in the Distributed Architecture Simulation Laboratory (DASL). AFRL developers working in the DASL have effectively combined satellite power, attitude pointing, and communication link analysis subsystem models with robust satellite sensor models to create a first-order end-to-end satellite simulation capability. The merging of these two simulation areas has advanced the field of spacecraft simulation, design, and analysis, and enabled more in-depth mission and satellite utility analyses. A core capability of the DASL is the support of a variety of modeling and analysis efforts, ranging from physics and engineering-level modeling to mission and campaign-level analysis. The flexibility and agility of this simulation architecture will be used to support space mission analysis, military utility analysis, and various integrated exercises with other military and space organizations via direct integration, or through DOD standards such as Distributed Interaction Simulation. This paper discusses the results and lessons learned in modeling satellite communication link analysis, power, and attitude control subsystems for an end-to-end satellite simulation. It also discusses how these spacecraft subsystem simulations feed into and support military utility and space mission analyses. Presented at the Conference on Modeling and Simulation for Military Applications held in Orlando, FL on 17-21 April 2006. Published in the Proceedings of SPIE: Modeling and Simulation for Military Applications, v6228 paper 622804, 21 Apr 2006. The original document contains color images.