| 信噪比盲估计算法性能比较 |
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| 引用本文： | 杨思源,杨蛟龙.信噪比盲估计算法性能比较[J].中国新通信,2012(21):4-6,9. |
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| 作者姓名： | 杨思源 杨蛟龙 |
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| 作者单位： | 1. 悉尼大学
2. 北京跟踪与通信技术研究所 |
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| 摘 要： | 为了实现非协作环境下的通信信号信噪比估计,本文在功率谱分析的基础上,提出了一种基于功率谱差分的信噪比盲估计算法,并将其与传统的基于奇异值分解的信噪比盲估计算法进行了比较。理论与仿真结果表明,与传统方法相比,本文提出的算法不但复杂度低,而且在低信噪比情形下仍具有较高的估计精确度和稳健性。
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| 关 键 词： | 信噪比盲估计 异值分解 功率谱差分 Welch法 |
A Performance Comparison of Blind Signal to Noise Ratio Estimation Algorithms |
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| Yang Siyuan,Yang Jiaolong.A Performance Comparison of Blind Signal to Noise Ratio Estimation Algorithms[J].China New Telecommunications,2012(21):4-6,9. |
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| Authors: | Yang Siyuan Yang Jiaolong |
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| Affiliation: | (The University of Sydney, NSW 2050, Australiaa) |
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| Abstract: | A blind estimation method for signal to noise ratio based on power spectral density difference is proposed in the paper in non-cooperative environment. Then it is compared with the classical method based on singular value decomposition. Both the theoretic analysis and simulation result show that the presented method in the paper has the characteristics of little calculation, high accuracy and strong robustness, compared to the classical method even when the signal to noise ratio is low. |
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| Keywords: | blind signal to noise ratio(SNR) estimation singular value decomposition(SVD) power spectral density(PSD) difference Welch procedure |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
