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。
In this paper, the combined effect of wave refraction and diffraction, and the variation of longshore wave breaker height are considered.
文中还考虑了波浪折射、绕射的综合影响，以及沿岸波高不等引起的沿岸输沙率变化。
Realtime correction method is mainly used in radio wave refraction error correction to improve radio instrumentation accuracy in engineering applications.
在实际工程应用中，为了提高雷达测量精度，电波折射误差的修正主要采用实时修正方法。
In combination with the result, the author points out that radio wave attenuations in roadway is mainly by wave refraction and reflection rather than wall absorption.
结合理论分析，指出无线电波在井巷中引起电波衰减的主要原因是波的折射与反射，而不是巷壁的吸收。
This paper proposes a formula fitting method for realtime correction of radio wave refraction errors for fast determination of the refraction error and improvement of radio instrumentation accuracy.
本文给出了电波折射误差实时修正的公式拟合方法，该方法在实际应用中能够快速得到折射误差，从而提高了雷达测量精度。
The used seismic data are prestack data:therefore, this method considers the energies of direct wave, refraction wave and multiple wave.
因所用资料是叠前资料，所以该方法考虑了直达波、折射波和多次波能量。
The used seismic data are prestack data:therefore, this method considers the energies of direct wave, refraction wave and multiple wave.
因所用资料是叠前资料，所以该方法考虑了直达波、折射波和多次波能量。
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