Transmission apparatus and distortion compensation method
US8588711B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2011 |
| Grant date | Nov 19, 2013 |
| Priority date | — |
| Expiry date | Apr 17, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/0475
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A transmission apparatus includes an analog digital converter that performs sampling on a demodulated signal obtained by demodulating a part of an output signal, which is produced by amplifying a modulated signal of a baseband signal including a plurality of signals having frequencies separated from each other, at a sampling frequency lower than a frequency of a given intermodulation distortion component and converting the demodulated signal into a digital signal, a detection section that detects an aliasing component of the given intermodulation distortion component produced by the conversion of the analog digital converter, and a distortion compensation section that compensates an input signal to be modulated for the given intermodulation distortion component in accordance with the detected aliasing component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.