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CLC number: TN929.5
On-line Access:
Received: 2006-08-21
Revision Accepted: 2006-11-24
Crosschecked: 0000-00-00
Cited: 2
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Wavelet network based predistortion method for wideband RF power amplifiers exhibiting memory effects
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JIN Zhe, SONG Zhi-huan, HE Jia-ming. Wavelet network based predistortion method for wideband RF power amplifiers exhibiting memory effects[J]. Journal of Zhejiang University Science A, 2007, 8(4): 625-630.
@article{title="Wavelet network based predistortion method for wideband RF power amplifiers exhibiting memory effects",
author="JIN Zhe, SONG Zhi-huan, HE Jia-ming",
journal="Journal of Zhejiang University Science A",
volume="8",
number="4",
pages="625-630",
year="2007",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2007.A0625"
}
%0 Journal Article
%T Wavelet network based predistortion method for wideband RF power amplifiers exhibiting memory effects
%A JIN Zhe
%A SONG Zhi-huan
%A HE Jia-ming
%J Journal of Zhejiang University SCIENCE A
%V 8
%N 4
%P 625-630
%@ 1673-565X
%D 2007
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2007.A0625
TY - JOUR
T1 - Wavelet network based predistortion method for wideband RF power amplifiers exhibiting memory effects
A1 - JIN Zhe
A1 - SONG Zhi-huan
A1 - HE Jia-ming
J0 - Journal of Zhejiang University Science A
VL - 8
IS - 4
SP - 625
EP - 630
%@ 1673-565X
Y1 - 2007
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2007.A0625
Abstract: RF power amplifiers (PAs) are usually considered as memoryless devices in most existing predistortion techniques. Nevertheless, in wideband communication systems, PA memory effects can no longer be ignored and memoryless predistortion cannot linearize PAs effectively. After analyzing PA memory effects, a novel predistortion method based on wavelet networks (WNs) is proposed to linearize wideband RF power amplifiers. A complex wavelet network with tapped delay lines is applied to construct the predistorter and then a complex backpropagation algorithm is developed to train the predistorter parameters. The simulation results show that compared with the previously published feed-forward neural network predistortion method, the proposed method provides faster convergence rate and better performance in reducing out-of-band spectral regrowth.
[1] Benvenuto, N., Piazza, F., 1992. On the complex backpropagation algorithm. IEEE Trans. Signal Processing, 40(4):967-969.
[2] Ding, L., Zhou, G.T., Morgan, D.R., 2004. A robust digital baseband predistorter constructed using memory polynomials. IEEE Trans. Commun., 52(1):159-164.
[3] Ding, L., Ma, Z.X., Morgan, D.R., Zierdt, M., Pastalan, J., 2006. A least-squares/Newton method for digital predistortion of wideband signals. IEEE Trans. Commun., 54(5):833-840.
[4] Eun, C., Powers, E.J., 1997. A new Volterra predistorter based on the indirect learning architecture. IEEE Trans. Signal Processing, 45(1):223-227.
[5] Isaksson, M., Wisell, D., Ronnow, D., 2005. Wide-band dynamic modeling of power amplifiers using radial-basis function neural networks. IEEE Trans. Microwave Theory Tech., 53(11):3422-3428.
[6] Lee, K.C., Gardner, P., 2006. Adaptive neuro-fuzzy inference system (ANFIS) digital predistorter for RF power amplifier linearization. IEEE Trans. Vehicular Tech., 55(1):43-51.
[7] Li, C.G., Liao, X.F., Yu, J.B., 2003. Complex-valued wavelet network. J. Computer Syst. Sci., 67(3):623-632.
[8] Lin, C.H., Chen, H.H., Wang, Y.Y., Chen, J.T., 2006. Dynamically optimum lookup-table spacing for power amplifier predistortion linearization. IEEE Trans. Microwave Theory Tech., 54(5):2118-2127.
[9] Liu, T.J., Boumaiza, S., Ghannouchi, F.M., 2004. Dynamic behavioral modeling of 3G power amplifiers using real-valued time-delay neural networks. IEEE Trans. Microwave Theory Tech., 52(3):1023-1033.
[10] Liu, T.J., Boumaiza, S., Ghannouchi, F.M., 2005. Deembedding static nonlinearities and accurately identifying and modeling memory effects in wide-band RF transmitters. IEEE Trans. Microwave Theory Tech., 53(11):3578-3587.
[11] Vuolevi, J.H.K., Rahkonen, T., Manninen, J.P.A., 2001. Measurement technique for characterizing memory effects in RF power amplifiers. IEEE Trans. Microwave Theory Tech., 49(8):1383-1389.
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