Method and apparatus for estimating lag in antenna feeder cable of wireless transmission system
US9609540B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 30, 2015 |
| Grant date | Mar 28, 2017 |
| Priority date | — |
| Expiry date | Sep 21, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B17/104
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method includes transmitting, at a first time, a first transmission vector signal towards an antenna via a feeder cable connected to the antenna; receiving a first reflected vector signal, the first reflected vector signal being a reflection of the first transmission vector signal reflected from a point in the feeder cable; determining a first transformed transmission vector signal by performing a first vector forward transform on the first transmission vector signal; determining a first transformed reflected vector signal by performing a first vector forward transform on the first reflected vector signal; determining a first complex conjugate vector signal based on the first transmission vector signal and the first reflected vector signal; determining a first computed vector signal by performing a first vector inverse transform on the first complex conjugate vector signal; and determining a first sub-vector by performing a windowing function based on the first computed vector signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.