WAAS, EGNOS, and MSAS for Telecom Sync

reportActive / Technical Report | Accession Number: ADA485380 | Open PDF

Abstract:

The WAAS, EGNOs, and MSAS GPS Augmentation Systems bridge the gap between the military applications of GPS and the needs of civil aviation navigation. These USA, Europe, and Asian systems consist of a network of differential GPS ground stations, using principally the Inmarsat-3 geosynchronous satellite constellation as the means of relaying the differential corrections to the users. In the process of providing precise navigation signals, GPS time is maintained through the Inmarsat-3 downlinks. It is this functionality that provides fist robust time retrieval for the synchronization needs of the telecommunications community. This paper discusses 1 The basic makeup and performance of the system 2 How time and frequency can be extracted for the telecom terminals 3 Added functionality and noise rejection capabilities using these signals for telecom timing applications 4 How the system offers the first true backup to the GPN CA signal for telecom synchronization users.

Author(s):
Fruehauf, Hugo
Author Organization(s):
ZYFER INC GARDEN GROVE CA
Descriptive Note:
Conference paper
Supplementary Note:
Presented at the Annual Precise Time and Time Interval (PTTI) Meeting (32nd), Reston, VA on 28-30 Nov 2000 and published in proceedings of the same, p31-44. See also ADM001509. The original document contains color images.
Pagination:
0014

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Monitor Series:
XD
 Subject Terms
Joint Capability Areas:
JCA_6_Net Centric; JCA_3.2_Engagement; JCA_3_Force Application; JCA_3.2.2_Non-Kinetic Means; JCA_6.4.1_Secure Information Exchange; JCA_6.4_Information Assurance; JCA_6.1_Information Transport; JCA_8_Building Partnerships
Communities of Interest:
Space
Descriptor(s):
*SYNCHRONIZATION(ELECTRONICS), *TIME SIGNALS, *CIVIL AVIATION, *ACCURACY, *NAVIGATION SATELLITES, GROUND STATIONS, SYNCHRONOUS SATELLITES, REQUIREMENTS
Field(s)/Group(s):
Commercial and General Aviation, Test Facilities, Equipment and Methods, Unmanned Spacecraft
Keyword(s):
DIFFERENTIAL CORRECTION, WAAS(WIDE AREA AUGMENTATION SYSTEM), EGNOS(EUROPEAN GEOSTATIONARY NAVIGATION OVERLAY SYSTEM), RAIM(RECEIVER AUTONOMOUS INTEGRITY MONITOR), MSAS(MULTIFUCTIONAL TRANSPORT SATELLITE SPACE BASED AUGMENTATIONS SYSTEM), INMARSAT 3
Report Date:
2000 Nov 01
Creation Date:
2008 Sep 03