本文用单台多重滤波方法测定了经过青藏高原地区瑞利波群速度频散曲线。
The group velocity dispersion curves of Bayleigh waves through most of the Qing-hai-Xizang Plateau are obtained, using the single-station and multiple-filtering process.
可以针对ati地区的地质情况，给出体波群速度和相速度变化图案，为进一步的理论研究提供便捷。
For complex structural geology of ATI areas, this research can provide the patterns of body-wave group-velocities and phase-velocities to benefit the theoretical research.
研究结果显示，在频率域内，面波衰减系数分布与群速度分布具有一定的相关性。
The correlation property between the distribution of attenuation factor and that of the group velocity is indicated, in this study.
结果表明，波的传播速度并不等于能流速度，而与复群速度的实部近似相等。
The results show that the propagation speed of the wave is not equal to the speed of energy flux, but nearly equal to the real part of the complex group velocity.
提出自结合方法，导出波传播的限定条件，在找到相应的正交序列后，完全得到弹性波导系统中解析形式的频散方程、群速度方程和稳态响应。
After finding the orthogonal sets corresponding to the guided-wave restriction condition, the analytic dispersive equation, group velocity equation and steady response are obtained simultaneously.
推演说明在弹性地层的井眼中，伪瑞利波不可能以横波速度传播，但其群速度与横波速度可以非常接近。
Theoretical deduction says that in a borehole penetrating elastic formations, pseudo Rayleigh wave does not take shear-wave velocity, but its group velocity may be very close to shear-wave velocity.
推演说明在弹性地层的井眼中，伪瑞利波不可能以横波速度传播，但其群速度与横波速度可以非常接近。
Theoretical deduction says that in a borehole penetrating elastic formations, pseudo Rayleigh wave does not take shear-wave velocity, but its group velocity may be very close to shear-wave velocity.
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