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话的影响，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。
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.
出处
《南京气象学院学报》
CSCD
1995年第1期87-92,共6页
Journal of Nanjing Institute of Meteorology
关键词
最大熵谱
大气折射指数
气候变化
maximum entropy spectrum,atmospheric refractive index
