| 大气折射指数气候振动特征的最大熵谱分析 |
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| 引用本文： | 张培昌 詹煜 等. 大气折射指数气候振动特征的最大熵谱分析[J]. 南京气象学院学报, 1995, 18(1): 87-92 |
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| 作者姓名： | 张培昌 詹煜 等 |
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| 作者单位： | [1]南京气象学院大气物理学系，南京210044 [2]南京气象学院 |
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| 摘 要： | 用最大熵谱分析法对南京、上海两地局地大气折射指数气候变化特征进行诊断，探讨了自回归模式的阶数不同对谱的影响，并从不同样本数的熵谱中提取出稳定的周期和谱峰值，所得结果可以作为预报大气折射指数变化的气候背景。
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| 关 键 词： | 最大熵谱 大气折射指数 气候变化 |
MAXIMUM ENTROPY SPECTRUM ANALYSIS OF CLIMATIC OSCILLATIONS IN ATMOSPHERIC REFRACTIVE INDICES |
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| Zhang Peichang. MAXIMUM ENTROPY SPECTRUM ANALYSIS OF CLIMATIC OSCILLATIONS IN ATMOSPHERIC REFRACTIVE INDICES[J]. Journal of Nanjing Institute of Meteorology, 1995, 18(1): 87-92 |
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| Authors: | Zhang Peichang |
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| Abstract: | By means of maximum entropy spectrum analysis made is diagnosis of climatic oscillation in local atmospheric refractive indices in Shanghai and Nanjing. Also discussed are the effects of autoregression models with diverse orders on an entropy spectrum,Stable perieds and spectral peaks are investigated in the spectrum with different sample sizes;The result found can be used as a climatic background in forecasting the change of a refractive index in the air. |
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| Keywords: | maximum entropy spectrum atmospheric refractive index |
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