CAJ | 학술논문

针对传统的时域有限差分（FDTD）方法具有精度较低，色散误差较大等缺陷。本文采用紧致格式和高阶FDTD相结合的方法进行数值模拟，并且对紧致格式高阶FDTD和传统FDTD方法的数值稳定性及其色散误差进行对比，得出本文中方法具有更低的色散误差和更好的稳定性等优点。
침대전통적시역유한차분（FDTD）방법구유정도교저，색산오차교대등결함。본문채용긴치격식화고계FDTD상결합적방법진행수치모의，병차대긴치격식고계FDTD화전통FDTD방법적수치은정성급기색산오차진행대비，득출본문중방법구유경저적색산오차화경호적은정성등우점。
Aiming at the traditional finite difference time-domain method of Maxwell equation with defects such as lower accuracy and larger dispersion error etc. , this paper deals with numerical simulation by applying compact format combined with high-order FDTD method, compares high-order compact FDTD method to the traditional FDTD in numerical stability and dispersion errors analysis. It can be concluded that the method introduced in this paper has advantages of lower dispersion error and better stability and so on.