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| Content Provider | Springer Nature Link |
|---|---|
| Author | Zheng, Xiaoyang Su, Liyun Hu, Shunren Ye, Zhiyong He, Jiangping |
| Copyright Year | 2015 |
| Abstract | Power amplifier (PA) plays a key role in transceivers for mobile communication systems and the improvement of the linearity of the PA becomes an objective of first importance. This paper proposes a novel linearization method for PA based on the Legendre wavelet possessing rich properties, so as to this technique combines the advantages of piecewise linear functions and orthogonal polynomials for pre-distortion linearization. Pre-distorter (PD) has been identified and power spectrum also has been compared based on the data of the PA characteristics for WCDMA and OFDM signals, respectively. The computational results demonstrate that a quite significant improvement in linearity is achieved and the PD is stable and effective. The most attractive aspects of the presented method is that the Legendre wavelet bases can approximate static nonlinearity of the PA with different level of resolution and lower order piecewise polynomials than that of other polynomials. |
| Starting Page | 283 |
| Ending Page | 292 |
| Page Count | 10 |
| File Format | |
| ISSN | 09251030 |
| Journal | Analog Integrated Circuits and Signal Processing |
| Volume Number | 84 |
| Issue Number | 2 |
| e-ISSN | 15731979 |
| Language | English |
| Publisher | Springer US |
| Publisher Date | 2015-05-01 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Power amplifier Pre-distortion Orthogonal polynomials Legendre wavelet Circuits and Systems Electrical Engineering Signal, Image and Speech Processing |
| Content Type | Text |
| Resource Type | Article |
| Subject | Surfaces, Coatings and Films Signal Processing Hardware and Architecture |
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