Image rejection compensation method for I/Q down-conversion in radio frequency receivers, corresponding circuit, radio frequency receiver device and computer program product
US11855830B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2020 |
| Grant date | Dec 26, 2023 |
| Priority date | — |
| Expiry date | Mar 24, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/0014
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An input signal has a desired signal component and an interfering signal component superimposed thereon. Interfering component estimation processing is applied to the input signal, obtaining as a result a filtered signal comprising a sequence of filtered data samples. The filtered signal is subtracted from the input signal obtaining as a result an output signal comprising a sequence of output data samples. The interfering component estimation processing applies conjugating processing to the input signal, providing a conjugated version of the input signal. An adaptive signal processing coefficient is computed and adaptive signal processing is applied to the conjugated version of the input signal using the adaptive processing coefficient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.