Method and device for estimating the squint of an antenna and method and device for following the pointing of an antenna implementing such a method and device, based on a harmonic analysis
US11303017B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 30, 2018 |
| Grant date | Apr 12, 2022 |
| Priority date | — |
| Expiry date | Oct 30, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B7/0617
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A calibrated measurement of the angular misalignment x of a radiofrequency antenna pointing towards a slow mobile, radio transmitter along an antenna axis, the antenna being in radio communication with the mobile. The measurement includes receiving of radiofrequency signals derived from the mobile during a period of the applied path, the signal being received on a frequency band lower than or equal to the frequency of the transmitted signal; determining, on a logarithmic scale, of the instantaneous power of the received signal; harmonic decomposition over each period of the power thus determined into a fundamental component and at least one harmonic component; and estimating of the angular misalignment x from the ratio between the fundamental term and a harmonic component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.