| OFDM系统中削峰噪声与PAPR的统计相关性研究 |
| |
| 引用本文： | 吕航. OFDM系统中削峰噪声与PAPR的统计相关性研究[J]. 舰船电子工程, 2008, 28(12) |
| |
| 作者姓名： | 吕航 |
| |
| 作者单位： | 武汉数字工程研究所,武汉,430074 |
| |
| 摘 要： | 通过研究PAPR与削峰噪声的统计相关特性,发现削峰噪声的功率并不总和PAPR高度相关,尤其是削峰对信号幅度影响很严重或者很小的时候.此外,当给定发送功率以及削峰门限时(即假定相同的放大器具有同样的回退值),削峰噪声的平均功率是一个与OFDM载波数无关的稳定值,由此得知载波数量的增多,可以获得更好的系统性能.
|
| 关 键 词： | 削峰噪声 互相关性 |
Research on Statistical Correlation between Clipping Noise and PAPR in OFDM Systems |
| |
| Lv Hang. Research on Statistical Correlation between Clipping Noise and PAPR in OFDM Systems[J]. Ship Electronic Engineering, 2008, 28(12) |
| |
| Authors: | Lv Hang |
| |
| Affiliation: | Lv Hang(Wuhan Digital Engineering Institute,Wuhan 430074) |
| |
| Abstract: | This paper investigates the statistical correlation between PAPR and the clipping noise.An interesting result is that the power of clipping noise is not always highly correlated with PAPR,especially when the signal is heavily or slightly clipped.Moreover,for the fixed transmit power and clipping threshold(i.e.the same amplifier with the same backoff),the average power of clipping noise is independent of the number of subcarriers in OFDM and the noise power is more stable,thus the OFDM systems with larger nu... |
| |
| Keywords: | OFDM PAPR |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
