Technique for mitigating multipath impacts on azimuth accuracy in a monopulse interrogator
US7675456B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2007 |
| Grant date | Mar 9, 2010 |
| Priority date | — |
| Expiry date | Dec 27, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/781
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for mitigating multipath impacts on azimuth accuracy in a monopulse interrogator is accomplished by calculating samples of monopulse ratio for samples of antenna boresight angles based on data received from an interrogation of a target. Samples of traditional target azimuth from the samples of monopulse ratio are calculated. A mean of the samples of traditional target azimuth is calculated. An alternative target azimuth from the samples of monopulse ratio is calculated. Whether a multipath signal exists is determined from observing a standard deviation of the samples of traditional target azimuth, and using the mean of the traditional target azimuth if a multipath signal does not exist and using the alternative target azimuth if a multipath signal does exist.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.