| 摘要: |
| 提出了一种降低峰平比(PAPR)的融合算法,该算法在发射端对正交频分复用(OFDM)调制信号进行两次降低峰值处理,因而降低PAPR的能力远远优于常规的选择性映射法和压扩法,而该新方法传输信号的性能与压扩法相当。 |
| 关键词: OFDM系统,峰平比,融合方法,快速傅里叶变换 |
| DOI：10.3969/j.issn.1001-893X. |
| Received:July 26, 2007Revised:November 18, 2007 |
| 基金项目:重庆市教育委员会科学技术研究项目(KJ070511)，广东省自然科学基金资助项目(D06300640)，中山市科技计划项目(2006A155) |
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| A Combined Scheme to Reduce the PAPR for OFDM Signals |
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| Abstract: |
| This paper proposes a combined scheme to reduce twice the peak-to-average-power-ratio(PAPR) of OFDM signal so that the performance of reducing the PAPR is much better than that of the conventional SLM scheme and the companding scheme.The system performance of the proposed scheme is the same as that of the companding scheme. |
| Key words: OFDM system,PAPR,combined scheme,FFT |
