The TIMATION (Time Navigation) technique of passive ranging can be employed to provide a worldwide navigation and time-transfer service. Passive ranging is accomplished by measuring the time difference between electronic clocks located within the satellite and the navigator's receiver. Navigation results were obtained with a prototype system consisting of the TIMATION 2 satellite and four ground stations. The results indicate a CEP position-fixing capability of 33 meters (100 feet) using dual-frequency range measurements. The analysis of the data includes ionospheric refraction, instrumentation error, and the effect of satellite trajectory position error in both the observed and predicted regions. (Author).
Range Navigation Using the TIMATION II Satellite
1973
51 pages
Report
No indication
English
Unmanned Spacecraft , Navigation satellites , Range finding , Passive systems , Position finding , Synchronization(Electronics) , Doppler systems , Ground support equipment , Time signals , Ultrahigh frequency , Circular error probable , Satellite tracking systems , Atomic clocks , Crystal oscillators , Doppler navigation , Timation 2 satellite
DOPPLER Only Navigation Using the TIMATION II Satellite
NTIS | 1973
|NTIS | 1968
Range Filtering For Navigation By Satellite
NTRS | 1989
|