Interference-aided navigation with cyclic jammer cancellation
US6825804B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 9, 2003 |
| Grant date | Nov 30, 2004 |
| Priority date | — |
| Expiry date | Sep 11, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04K2203/22
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An interference-aided signal acquisition and tracking system includes a vehicle, an interference detector, a noise canceller, and a signal processor. The vehicle has at least two receivers configured to detect external signals and the at least two receivers have an output dependent on attitude of the vehicle. The interference detector measures the output of at least one of the at least two receivers. The noise canceller combines the output of the at least two receivers. The signal processor extracts a desired signal from the output of the noise canceller. The output of the interference detector is used to control the noise canceller as to reject unwanted signals and enhance performance of the signal processor in extracting the desired signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.