System and method for estimating terminal position based on non-geostationary communication satellite signals
US9164163B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2012 |
| Grant date | Oct 20, 2015 |
| Priority date | — |
| Expiry date | Dec 31, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S5/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device is provided for use with a satellite and a receiver having a local oscillator. The satellite is traveling in a vector and transmits a signal having an expected frequency. The receiver receives a received signal having a received signal frequency. The device includes: a Doppler shift measuring portion measuring a Doppler shift Dm; a predetermined Doppler shift storage portion storing a predetermined received Doppler shift Dp; a received signal Doppler shift error calculating portion calculating a received signal Doppler shift error De; a predetermined receiver position storage portion storing a predetermined position Pp of the receiver; and a receiver position estimating portion calculating an estimated receiver position Pe based on the predetermined position Pp of the receiver and the received signal Doppler shift error De.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.