| OFDM信号的盲识别研究 |
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| 引用本文： | 张弛,吴瑛.OFDM信号的盲识别研究[J].计算机工程,2010,36(4):262-264. |
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| 作者姓名： | 张弛 吴瑛 |
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| 作者单位： | 信息工程大学信息工程学院,郑州,450002 |
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| 摘 要： | 提出一种新的OFDM信号盲识别算法，利用多载波OFDM信号在时域上的近高斯性，提取信号特征参数Q作为分类特征，该参数不受高斯白噪声的影响，且无须知道先验知识，只需在中频直接对信号进行识别，计算简单、利于实现。仿真实验结果表明，在短波信道中，该算法具有较强的抗多径能力。
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| 关 键 词： | 调制识别 短波信道 OFDM信号 特征参数 |
| 修稿时间： | |
Research on Blind Identification for OFDM Signal |
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| ZHANG Chi,WU Ying.Research on Blind Identification for OFDM Signal[J].Computer Engineering,2010,36(4):262-264. |
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| Authors: | ZHANG Chi WU Ying |
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| Affiliation: | (Institute of Information Engineering, Information Engineering University, Zhengzhou 450002) |
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| Abstract: | A new algorithm for the identification of Orthogonal Frequency Division Multiplexing(OFDM) signal is proposed. The feature parameter Q is used to discriminate OFDM signal because of their asymptotically Gaussian. This feature parameter which is easy to compute and operate can suppress the Gaussian white noise. The algorithm directly processes bandpass signals without the any prior information. Simulation experimental results show this algorithm is immune to multi-path channel in shortwave channel. |
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| Keywords: | modulation recognition shortwave channel Orthogonal Frequency Division Multiplexing(OFDM) signal feature parameter |
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