ZHANG Qin, WU Si-liang, LI Hai. A New Look-Up-Table Predistorter for Power Amplifier with Memory Effects[J]. Acta Electronica Sinica, 2008, 36(9): 1728-1732.
ZHANG Qin, WU Si-liang, LI Hai. A New Look-Up-Table Predistorter for Power Amplifier with Memory Effects[J]. Acta Electronica Sinica, 2008, 36(9): 1728-1732.DOI：
A new look-up-table memory predistorter for power amplifier with memory effects is proposed.The cascade extension of the memoryless predistorter and the structure of finite-impulse-response filter significantly reduce the complexity compared to memory polynomial methods
whereas they can get the close performance.Two improved methods
linear insertion and iteration with weights’ windows
are also discussed to solve quantization distortions and convergence speed problems respectively
which are introduced intrinsically by look-up-table method.Under power amplifier’s memory polynomial model
simulation results of multi-carriers WCDMA wideband signal and OFDM wideband signal show excellent performance of the look-up-table memory predistorter and the efficiency of the two improved methods.
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