Method for detecting the distortion of a GNSS signal
US8659475B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2011 |
| Grant date | Feb 25, 2014 |
| Priority date | — |
| Expiry date | Apr 27, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for detecting the distortion of a GNSS signal transmitted by at least one GNSS satellite and received by at least one GNSS receiver is disclosed, where the distortion is caused by a GNSS signal generation defect. Initially, at least one autoregressive parametric model of the GNSS signal is determined at the output of a correlation stage of the GNSS receiver. Next, at least one linear prediction error e(n) between the output signal of the correlation stage and the autoregressive parametric model is computed. The linear prediction error is compared to a detection threshold and the distortion of the transmitted GNSS signal is decided when the linear prediction error exceeds the detection threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.