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Error analysis for relay type satellite-aided search and rescue systems
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Marini, J. W. |
| Copyright Year | 1977 |
| Description | An analysis was made of the errors in the determination of the position of an emergency transmitter in a satellite aided search and rescue system. The satellite was assumed to be at a height of 820 km in a near circular near polar orbit. Short data spans of four minutes or less were used. The error sources considered were measurement noise, transmitter frequency drift, ionospheric effects and error in the assumed height of the transmitter. The errors were calculated for several different transmitter positions, data rates and data spans. The only transmitter frequency used was 406 MHz, but the results can be scaled to different frequencies. In a typical case, in which four Doppler measurements were taken over a span of two minutes, the position error was about 1.2 km. |
| File Size | 621071 |
| Page Count | 22 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19780007123 |
| Archival Resource Key | ark:/13960/t5bc8rx3r |
| Language | English |
| Publisher Date | 1977-09-01 |
| Access Restriction | Open |
| Subject Keyword | Astronautics (general) Rescue Operations Relay Satellites Transmitter Receivers Position Location Error Analysis Ionospheric Noise Communication Satellites Polar Orbits Doppler Effect Noise Measurement Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
