System and method for adaptive predistortion
US6614854B1 · kind B1 · utility
121Cited by
9References
43Claims
0Family size
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Key dates
| Filing date | May 28, 1999 |
| Grant date | Sep 2, 2003 |
| Priority date | — |
| Expiry date | May 28, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03802
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Distortion introduced into a multiamplitude signal format or amplitude and phase signal format by a high power microwave amplifier is compensated by a system which adapts itself to non-linearities present in the amplifier and predistorts the input signals before they are subjected to the non-linearities created by the amplifier. The degree of predistortion is non-fixed and varies or is updated as the non-linear conversion characteristics of the amplifier change with time. The distortion can also be compensated by using a power curve look-up table.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.