Improved COSPAS-SARSAT locating with geostationary satellite data

The COSPAS-SARSAT system locates distress beacons via Doppler analysis of beacon transmissions as observed by low Earth orbiting (LEO) satellites. By contrast, the 406 MHz search and rescue transponder on the geostationary satellites can measure only the transmitted frequency of the beacon, which is...

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Bibliographic Details
Published in:IEEE transactions on aerospace and electronic systems 1996-10, Vol.32 (4), p.1405-1411
Main Authors: Gambhir, B.L., Wallace, R.G., Affens, D.W., Bellantoni, J.E.
Format: Article
Language:English
Subjects:
Applied sciences
Current measurement
Delay effects
Delay estimation
Electric shock
Exact sciences and technology
Extraterrestrial measurements
Frequency estimation
Frequency measurement
Low earth orbit satellites
NASA
Radiolocalization and radionavigation
Telecommunications
Telecommunications and information theory
Transponders
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Summary:The COSPAS-SARSAT system locates distress beacons via Doppler analysis of beacon transmissions as observed by low Earth orbiting (LEO) satellites. By contrast, the 406 MHz search and rescue transponder on the geostationary satellites can measure only the transmitted frequency of the beacon, which is not currently being used in location determination. This report shows that a combined data approach can significantly improve the locating success rate, the time delay to the first solution, and the accuracy of location estimates.
ISSN:0018-9251
1557-9603
DOI:10.1109/7.543861