利用晶体光学基本方程推导出菲涅耳波射线方程，通过波射线方程并结合麦克斯韦方程组求解晶体光学问题。
The Fresnel wave ray equation is deduced by use of the fundamental equations of crystal optics. The crystal optics question is solved by Fresnel wave ray equation cooperating with Maxwell equation.
高斯束是波动方程在特定射线附近的高频渐近解。
Gaussian beam is the asymptotic solution of wave equation concentred at the central ray.
本文给出了采用IGRF模型的哨声模波三维射线跟踪方程，并概述了射线跟踪模型及数值计算程序。
In this paper we have developed a program for three dimensional ray tracing of whistler-mode waves in which the IGRF model was adopted.
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