| 降峰均比技术在WCDMA技术中的应用 |
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| 引用本文： | 孙煜,吴晓芳.降峰均比技术在WCDMA技术中的应用[J].电子测量技术,2011,34(5):12-14. |
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| 作者姓名： | 孙煜 吴晓芳 |
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| 作者单位： | 厦门大学信息科学与技术学院; |
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| 基金项目： | 福建省重大专项(2009HZ0003-1)项目资助 |
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| 摘 要： | 高峰均比信号会将功放驱动到非线性区,造成了功放性能的下降,及信号频谱扩散和畸变,因此需要合理降低信号的峰均比.采用一种峰值抵消的降峰均比技术对信号进行削峰处理,降低了信号的峰均比.通过理论仿真验证了该算法的可行性,并在FPGA上进行实现.结果表明该算法不仅占用资源少,且不造成频谱的扩散,减小了对邻道信号的干扰.
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| 关 键 词： | 峰均比 削峰 峰值抵消 |
Application of peak-to-average power ratio reduction in the WCDMA |
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| Sun Yu,Wu Xiaofang.Application of peak-to-average power ratio reduction in the WCDMA[J].Electronic Measurement Technology,2011,34(5):12-14. |
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| Authors: | Sun Yu Wu Xiaofang |
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| Affiliation: | Sun Yu Wu Xiaofang(School of Information Science and Technology,Xiamen University,Xiamen 361005) |
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| Abstract: | Because the high peak to average power ratio(PAPR) signal often makes power amplifier(PA) operating at nonlinear region,resulting in a decline of the PA's performance,spectrum spread and distortion of the signal,so it needs reduce the PAPR of signal.The method of peak cancellation(PC) crest factor reduction(CFR) is adopted to reduce PAPR of the signal in this paper.The algorithm is validated by the simulation and is realized using FPGA.The results show that the algorithm not only takes up less resources,but... |
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| Keywords: | PAPR CFR PC |
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