| 基于功率谱获取海浪波长波向算法的改进 |
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| 引用本文： | 陶法,马舒庆.基于功率谱获取海浪波长波向算法的改进[J].成都信息工程学院学报,2010,25(1):8-12. |
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| 作者姓名： | 陶法 马舒庆 |
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| 作者单位： | 成都信息工程学院电子工程学院,四川,成都,610225 |
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| 摘 要： | 提出一种针对基于海浪图像功率谱获取海浪波长和波向的改进算法。算法首先假定海浪功率谱是一个密度不均匀的薄片平面，然后寻找其重心坐标，该坐标可等效为海浪主频位置，从而能够快速准确地得到海浪波长和波向。并经过大量的实验，验证该方法能够很好地解决基于二维傅里叶变换获取海浪图像波长、波向时主频不明显和大量频率分量没用上等缺点。
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| 关 键 词： | 信息处理技术 高速数字信号处理 海浪 图像处理 傅立叶变换 功率谱 重心坐标 |
An Improved Acquisition Algorithm of Direction and Wavelength of Ocean Wave Based on Power Spectrum of Ocean Wave Image |
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| TAO Fa,MA Shu-qing.An Improved Acquisition Algorithm of Direction and Wavelength of Ocean Wave Based on Power Spectrum of Ocean Wave Image[J].Journal of Chengdu University of Information Technology,2010,25(1):8-12. |
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| Authors: | TAO Fa MA Shu-qing |
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| Institution: | School of electronic engineering;Chengdu University of Information Technology;Chengdu 610225;China |
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| Abstract: | This paper presents an improved acquisition algorithm of the direction and wavelength of ocean waves based on power spectrum of ocean wave Image.Under the assumption that the power spectrum of ocean waves is a thin plane with uneven density,the barycentric coordinate that is equivalent to the location of master frequency can be figured out,which contributes to the quick,accurate acquisition of the direction and wavelength of ocean wave.Also,the results from a lot of experiments have shown that the improved ... |
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| Keywords: | information processing technology high-speed digital signal processing ocean wave image processing fourier transform power spectrum barycentric coordinate |
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