| • | Architectures for Fleet Management
With the increasing reliance on space systems for communications, the number of multi-satellite, multi-mission operators, in both the government and commercial sectors, is also increasing. To prevent the operations and maintenance costs from increasing linearly, or worse, with the number of satellites, operators are attempting to consolidate operations and maintenance across the satellite fleet. Different satellite generations and buses complicate this fleet view, and different ground control systems have differing capabilities in a fleet management environment.
This paper examines the architectures of existing satellite fleet control centers, comparing capability, scalability, and maintainability. The paper then takes the lessons learned forward to propose architectural requirements for a future fleet management system and related satellite industry standards.
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| • | CPDLC Future Enhancements and ATN Subnetworks
Describes potential enhancements to the Controller-Pilot Data Link Communications (CPDLC) system that can provide many benefits to FAA and industry users. This paper also discusses the ATN Infrastructure that is currently in place to support CPDLC Build 1, and how future enhancements of CPDLC might impact this ATN Infrastructure. |
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| • | Crucial Security Programs White Paper - A Comparison of High Performance Computing Solutions
Robert F. Riemenschneider and Lucas J. Jessee |
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| • | Crucial Security Programs White Paper - An Explanation of Integrity Levels in Windows Vista
Mike Myers |
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| • | Crucial Security Programs White Paper - Introduction to Application Security
Jared D. DeMott |
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| • | Crucial Security White Paper - Digital Examination Process: Closing Gaps with New Technology
Michelle Fritzsching |
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| • | FliteScene Overview
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| • | Introduction to Application Security
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| • | Managing Critical Resources in a Software-Defined Radio
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| • | Managing the Wireless Infrastructure: Moving Towards Autonomy
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| • | OS/COMET System Overview
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| • | Progressive Automation in Aerospace Systems
Abstract—Increasing automation in satellites and satellite control systems can lead to reduced operations costs and safer operation of the spacecraft. In a way, up-front development costs are being traded for long-term operations costs over the program life. With the increasingly parallel development of the spacecraft components and ground systems, the paper argues for an incremental approach to automation beginning with component integration and test. This incremental approach increases the probability of successful automation and reduces the development costs. |
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| • | Results of Evaluation Testing for High Thermal Conductivity Graphite Heatsincs for Adv. Helicopter
Results of Evaluation Testing For High Thermal Conductivity Graphite Heatsinks for Advanced Helicopter Applications. Written by Scott Newland and Randall E. Hart, Harris Corporation, Government Communications Systems Division. Presented at the 26th Annual Composites Materials and Structures Symposium. |
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| • | SDR’s Role In The Wireless World
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| • | Selection of Components for OTS Component-based Systems
Abstract—Acquisition of software-intensive computer systems shifted toward the inclusion of Off-the-Shelf (OTS) components in the 1990s in order to control spiraling software costs. The initial results of this shift are in, and there have been significant lessons learned along the way. This paper examines some of the key attributes for success and failure in OTS-based development programs including requirements management and component selection. The paper recommends criteria for selection. |
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| • | Technical and Economic Benefits of VHF Digital Link Mode 3 Integrated Voice and Data Link for ATC
ATC voice and data can be assigned to physically separate links without any operational impact. Early phases of the U. S. FAA CPDLC are in fact being carried on commercially available air-ground links such as VHF Digital Link (VDL) Mode 2 while voice remains on AM VHF. Integrating voice and data communications on a single digital link, as is done in the VDL Mode 3 system being procured by the FAA for Next Generation Air-Ground Communications (NEXCOM), has significant benefits. |
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| • | Technical and Economic Benefits of VHF Digital Link Mode 3 Integrated Voice and Data Link for ATC
Controller-Pilot Data Link Communications (CPDLC) is sometimes seen as an alternative to air-ground voice communications that provides benefits such as reducing voice channel congestion and misinterpretation of controller information. In this view, Air Traffic Control voice and data can be assigned to physically separate links without any operational impact. Early phases of the U.S. Federal Aviation Administration’s (FAA) CPDLC are in fact being carried on commercially available air-ground links such as VHF Digital Link (VDL) Mode 2 while voice remains on Amplitude-Modulated (AM) VHF. However, integrating voice and data communications on a single digital link, as is done in the VDL Mode 3 system being procured by the FAA for Next Generation Air-Ground Communications (NEXCOM), has significant benefits for both communication types. (07/03) |
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