Method and device for pre-distorting an exciter and predistortion exciter
US8538349B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2011 |
| Grant date | Sep 17, 2013 |
| Priority date | — |
| Expiry date | Mar 22, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/189
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method for pre-distorting an exciter includes obtaining a characteristic curve of a radio frequency (RF) amplifier, obtaining a first relationship between a gain amplitude correction value and an input power and a second relationship between a gain phase correction value and the input power based on the characteristic curve, obtaining a transmission gain for use in a scan from a magnetic resonance pre-scan, and obtaining the gain amplitude correction value and the gain phase correction value of an input of the exciter based on the input of the exciter, the transmission gain, the first relationship, and the second relationship. An input of the exciter is pre-distorted using the gain amplitude correction value and the gain phase correction value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.