摘要
对月平均气温一维时间序列作相空间拓展，并根据系统的分维数设定重建的动力系统，且在具有二次非线性项的假定下，利用最小二乘法求解相空间状态演化方程中的各项系数，以重建动力系统。结果表明：随相空间维数的增加，重建的动力系统对气候演化过程可作出更精确、细致的描述。
Phase space continuation is done of 1D monthly mean temperature series and from areconstructed dynamic system based on the assumed fractual dimension,a new system is rebuilt a-gain by finding coefficients of all terms of the phasee space state variables equation through theleast square method under the assumption of quadratic nonlinear terms available. Results showthat as the phase space dimensionality increases the newly reconstrticted dynamic system can givethe climate evolution a more precise and detailed description.
出处
《南京气象学院学报》
CSCD
1994年第4期493-497,共5页
Journal of Nanjing Institute of Meteorology
关键词
时间序列
相空间拓展
动力系统
大气动力学
time series,phase space continuation,dynamic system reconstruction
