摘要
将基于Daubechies尺度函数的时域小波Galerkin法应用到水和等离子体色散介质中的瞬态传播,给出了一种既适合于Debye模型,又适合于等离子体计算的差分方程方法。计算结果证实了方法的有效性,与(FD)2TD比较,该方法可以增加网格尺寸而不会牺牲精度,因而具有计算效率高的特点。
Wavelet Galerkin of Time-Domain （WGTD） technique based on Daubechies＇ scaling function is applied to model the transient propagation in water and plasma, and a new differential equation approach is presented for WGTD, which can be used for propagation in Debye media, and also can be used for plasma easily through equivalent substitution. Compared with （FD）^2 TD method by the numerical results, the scheme could increase grid size without sacrificing solution accuracy, so has much higher computational effectivity.
出处
《电波科学学报》
EI
CSCD
北大核心
2007年第6期958-961,981,共5页
Chinese Journal of Radio Science
基金
高等学校博士学科点专项基金(20030701006)
