| 基于傅里叶变换的信道质量盲估计算法 |
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| 引用本文： | 顾秉辉,孙锦华,金力军. 基于傅里叶变换的信道质量盲估计算法[J]. 电子科技, 2006, 0(4): 39-42,46 |
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| 作者姓名： | 顾秉辉 孙锦华 金力军 |
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| 作者单位： | 西安电子科技大学,综合业务网理论及关键技术国家重点实验室,陕西,西安,710071;西安电子科技大学,综合业务网理论及关键技术国家重点实验室,陕西,西安,710071;西安电子科技大学,综合业务网理论及关键技术国家重点实验室,陕西,西安,710071 |
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| 摘 要： | 根据快速傅里叶变换(FFT)和数字信号调制解调的特点,给出了一种盲信道质量估计算法.算法利用了信号进行傅里叶变换后功率谱密度中所包含的信号特征在基带完成,并用软件实现.仿真结果表明,这种算法具有准确度高、计算速度快、所需数据量小等特点.符合信道实时估计的要求.
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| 关 键 词： | 傅里叶变换 盲信道检测 信噪比 功率谱 连续相位调制 |
| 收稿时间： | 2005-09-06 |
| 修稿时间： | 2005-09-06 |
A Blind Channel Estimation Algorithm Based on the Fast Fourier Transform |
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| Gu Binghui,Sun Jinhua,Jin Lijun. A Blind Channel Estimation Algorithm Based on the Fast Fourier Transform[J]. Electronic Science and Technology, 2006, 0(4): 39-42,46 |
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| Authors: | Gu Binghui Sun Jinhua Jin Lijun |
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| Abstract: | On the basis of the features of the Fast Fourier Transform (FFT) and digitally modulated signals, this paper proposes a blind channel estimation algorithm. This algorithm has utilized the signal to carry on the signal characteristic that Fourier includes in the density of the power spectrum after Fourier transform. The simulation results show that the algorithm has the advantages of high precision, small storage and fast computation and it needs only a small amount of input data. The algorithm can meet the requirement of the real-time estimation of the channel. |
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| Keywords: | Fast Fourier transform blind estimation of channel signal-to-noise ratio (SNR) power spectrum continuous phase modulation. |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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