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- Landin, Per N., et al.
(författare)
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Peak-power controlled digital predistorters for RF power amplifiers
- 2012
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Ingår i: IEEE transactions on microwave theory and techniques. - 0018-9480 .- 1557-9670. ; 60:11, s. 3582-3590
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Tidskriftsartikel (refereegranskat)abstract
- This paper investigates the issue of predistorter blow-up, i.e., uncontrolled peak expansion caused by the predistorter. To control the peak expansion, an extension of the multistep indirect learning architecture (MS-ILA) is proposed by adding a constraint that describes the allowed peak power of the predistortion signal. The resulting optimization problem is shown to be convex and an optimization method is formulated to solve it.
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