与基于特征法的其它类似方法相比，C - I法给出了下行和上行波场更明确的描述。
In contrast to other similar schemes based on characteristic method, the C-I scheme gives a clear view for down-going and upcoming wave fields.
沿上行波波前或下行波波前进行波场延拓是确保波场全倾角归位仅能采用的两种延拓方法。
The wave-field continuations along up-going wavefront or down -going wavefront are the two methods we can take to ensure the all -dip migration of wave field.
下行压缩波与上行波衰减规律不同，其中上行拉力波比下行波衰减快；上行压缩波比下行波衰减慢。
Wave amplitude decay in different ways by downward compressive wave and upward wave, the upward wave decay slower than the downward wave.
对三维波动方程做单程波分解，给出了用低阶偏微分方程组逼近上行波方程的2种高阶近似表达式。
This paper performs one-way wave decomposition for 3d wave equation, and 2 kinds of high approximation of up-going wave equation in low order differential equation system are derived.
采用双速度测试和分析技术可以解决在既有基础下基桩的完整性、平均波速以及从实测信号中分离出上行波曲线。
Two-velocity analysis method can develop the pile integrity test, average wave speed and wave-up curve separated from measured signal under the condition of existed foundation.
采用双速度测试和分析技术可以解决在既有基础下基桩的完整性、平均波速以及从实测信号中分离出上行波曲线。
Two-velocity analysis method can develop the pile integrity test, average wave speed and wave-up curve separated from measured signal under the condition of existed foundation.
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