| 乘性噪声背景下二维谐波的二次耦合分析 |
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| 引用本文： | 汪飞,王树勋,窦慧晶. 乘性噪声背景下二维谐波的二次耦合分析[J]. 吉林大学学报(工学版), 2002, 32(3): 35-40 |
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| 作者姓名： | 汪飞 王树勋 窦慧晶 |
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| 作者单位： | 吉林大学通信工程学院,吉林,长春,130025 |
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| 基金项目： | 国家自然科学基金资助项目 (6 0 172 0 32 ) |
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| 摘 要： | 利用二维循环统计量方法对二维平稳乘性噪声与二维平稳加性噪声共存情况下的二维谐波的二次耦合问题做了分析。根据二维循环统计量能够有效地抑制二维平稳乘性噪声和二维平稳加性噪声的特点 ,利用本文所定义的二维三阶时间平均矩切片能谱有效地提取出耦合信号中二次耦合的频率和参与二次耦合的频率。仿真实验验证了算法的正确性。
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| 关 键 词： | 二维谐波 耦合谐波 乘性噪声 |
| 文章编号： | 1671-5497(2002)03-0035-06 |
| 修稿时间： | 2002-01-29 |
Analysis of Two-dimensional Quadratic Coupled Harmonics in Multiplicative Noise |
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| WANG Fei,WANG Shu-xun,DOU Hui-jing. Analysis of Two-dimensional Quadratic Coupled Harmonics in Multiplicative Noise[J]. Journal of Jilin University:Eng and Technol Ed, 2002, 32(3): 35-40 |
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| Authors: | WANG Fei WANG Shu-xun DOU Hui-jing |
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| Abstract: | In this paper,the problem of the quadratic coupling of two-dimensional hamonics in coexistance of two-dimensional steady multiplicative noiseis and two-dimensional steady additive noise is analysed by means of two-diamensional cyclic stastic method.According to the peculiarity that the two-dimensional steady multiplicative and additive noise can be restrained effectively by two-dimensional cyclic statistic,the quadratic coupling and coupled frequencies can be extracted efficiently by using the slices of two-dimensional third-order time average moment energy spectra.The correctness of the algorithm used was verified by simulation experiment. |
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| Keywords: | two-dimension harmonics coupled harmonics multiplicative noise |
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