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本文根据普遍几何群速的概念和Fermat原理导出的波群的波向线方程,数值计算在理想底形海域中波群与单频率波的波向线,并加以比较,指出两者的异同。同时还检验了前人的一些结论。
According to the wave equation of the wave group derived from Fermat’s principle and general geometric group velocity concept, the wave directions of the mid-wave group and single-frequency wave are numerically calculated and compared, and the similarities and differences between them are pointed out. At the same time also tested some conclusions of predecessors.