Since P-Wave can not be suppressed in dipole shear wave log in slow formation, there are some difficulties in picking the first S-Wave arrival.
在慢速地层中偶极横波测井不能很好地压制纵波，致使横波首波的检测存在一定的难度。
A new technique for picking the first S-Wave arrival is presented by multiplying energy ratio of the long window to the short window by the square of the amplitude envelope of waveforms in the paper.
提出了利用波形长短时窗能量比值与波形信号能量包络的平方乘积检测横波初至的新方法。
Using correlative technique to detect the sine wave in yawp is a good method for picking up certain signal from yawp jam, which can determine the size and phase of signal.
埋藏在噪声中的正弦波，利用相关技术进行检测，能够测定信号的大小和相位。
Using correlative technique to detect the sine wave in yawp is a good method for picking up certain signal from yawp jam, which can determine the size and phase of signal.
埋藏在噪声中的正弦波，利用相关技术进行检测，能够测定信号的大小和相位。
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