Interference-aided navigation with temporal beam forming in rotating vehicles
US6587078B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 17, 2002 |
| Grant date | Jul 1, 2003 |
| Priority date | — |
| Expiry date | Apr 17, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S3/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An interference-aided signal acquisition and tracking system with temporal beam forming for a rotating vehicle enhances signal to noise ratio using interference or jamming signals. An antenna receives interference signals and desired navigation signals. A RF processing function connected to the antenna processes the received interference signals and the desired navigation signals into IF signals. An A/D converter connected to the RF processing function digitizes the interference signals and desired navigation signals and provides a digitized IF signal. A tracking filter tracks amplitude variations of the interference signals and provides a rotation angle estimate signal of the rotating vehicle. A signal modulation function connected to the tracking filter and the A/D converter varies gain of the IF signal to enhance the signal to noise ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.