The radio wave refraction correction for improving the accuracy of GPS navigation and location is necessary.

因此要提高GPS的定位导航精度，就必须进行电波折射修正。

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Wave B in either flat or zigzag correction pattern could be very complicated.

浪平台或锯齿修正形态都可能会非常复杂。

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The method can be applied in the shortest ray path tracing and the processing courses such as refraction wave static correction and can reduce the operating quantity and time.

将该方法应用于最短射线路径追踪和折射波静校正等资料处理的过程中，可以减少运算量和运算时间。

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Typically, when wave 2 is a deep correction (50% or more), wave 4 tends to be shallow.

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When a fifth wave is extended, we should be on the alert for a sharp correction once that wave completes its run.

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Sometimes, the B wave trades above the top of wave A as an irregular correction.

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