The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 30, 2013
Filed:
Dec. 22, 2010
Georges Peyresoubes, Cholet, FR;
Bruno Feuvrie, Nantes, FR;
Mazen Abi Hussein, Nantes, FR;
Yide Wang, Nantes, FR;
Georges Peyresoubes, Cholet, FR;
Bruno Feuvrie, Nantes, FR;
Mazen Abi Hussein, Nantes, FR;
Yide Wang, Nantes, FR;
Thales, Neuilly sur Seine, FR;
Universite de Nantes, Nantes Cedex, FR;
Abstract
A linearization device for a power amplifier using adaptive digital baseband predistortion includes a pre-inverse block receiving a complex discretized input signal {tilde over (x)}(n) and restoring a complex predistorted signal {tilde over (x)}(n) at the power amplifier input. The pre-inverse block includes a first module and a second module receiving the modulus of the complex input signal |{tilde over (x)}(n)| at the input whose value is included in an amplitude domain varying between two values 0 and A, the amplitude domain being split into a plurality of segments, the first module associating with each value of the complex input signal modulus |{tilde over (x)}(n)| contained in a given segment, a set of several parameters defining a model implemented in the second module via a function Fj, the second module restoring a value F(|{tilde over (x)}(n)|), the complex predistorted signal resulting from multiplying the complex input signal {tilde over (x)}(n) by the value F(|{tilde over (x)}(n)|).