DPD设计论文

job3001

【文件名】:09428@52RD_A+robust+digital+baseband__+predistorter+constructed+using+memory+polynomials.pdf
【格　式】:pdf
【大　小】:253K
【简　介】:
【目　录】:




Abstract—Power amplifiers (PAs) are inherently nonlinear
devices and are used in virtually all communications systems.
Digital baseband predistortion is a highly cost-effective way
to linearize PAs, but most existing architectures assume that
the PA has a memoryless nonlinearity. For wider bandwidth
applications such as wideband code-division multiple access
(WCDMA) or wideband orthogonal frequency-division multiplexing
(W-OFDM), PA memory effects can no longer be ignored,
and memoryless predistortion has limited effectiveness. In this
paper, instead of focusing on a particular PA model and building
a corresponding predistorter, we focus directly on the predistorter
structure. In particular, we propose a memory polynomial model
for the predistorter and implement it using an indirect learning
architecture. Linearization performance is demonstrated on a
three-carrier WCDMA signal.
Index Terms—Communication sy[br]<p align=right><font color=red>+1 RD币</font></p>[br]<p align=right><font color=red>+1 RD币</font></p>

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