Motion-based adaptive frequency estimation of a doppler velocity sensor
US8917203B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2011 |
| Grant date | Dec 23, 2014 |
| Priority date | — |
| Expiry date | Jun 27, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/86
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method for motion-based adaptive frequency estimation of a Doppler sensor is provided. The system comprises a Doppler sensor configured to output a digitized Doppler data signal, and a Doppler velocity estimation module operatively coupled to the Doppler sensor to receive the Doppler data signal. An inertial navigation system is operatively coupled to the Doppler velocity estimation module, and one or more inertial sensors is operatively coupled to the inertial navigation system. The inertial sensors are configured to transmit inertial navigation data to the inertial navigation system. The Doppler velocity estimation module calculates a speed or velocity estimate based on the Doppler data signal and the inertial navigation data. The speed or velocity estimate is then transmitted to the inertial navigation system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.