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利用甘肃河西张掖数字化地震台网观测到的肃南南部地区1988年9月至1990年4月间的地震记录资料，以及刘家峡、合作、肃南、靖远等地震台观测到的景泰地区1989年2月至1990年10月的地震资料，分析研究了这些台站所在的青藏高原北缘地区地震波动力学特征量变化与该区及邻近地区在这些时间段内发生的3次Ms＞5．5级强震的关系。所研究的地震波动力学特征是有P波初始部分及短周期地脉动的波形时间线性度和空间线性度，平均半周期、出射角和方位角，频谱的峰值频率、拐角频率，相对频带宽度、相对频谱峰值，高频段的潜线斜率绝对值，尾波的时间熵、振幅比、持续时间变化量等。
Seismological records from September 1988 to April 1990 in southern Sunan, observed by Zhangye Digital Seismic Network in Hexi, Gansu Province, and the Jingtai region, observed by seismographs such as Liujiaxia, Hezuo, Sunan and Jingyuan in 1989 From February to October 1990, the seismic characteristics of the northern margin of the Qinghai-Xizang Plateau where these stations are located are analyzed and compared with those of this area and its adjacent areas within these time periods of 3 times Ms> 5.5 Magnitude earthquake. The characteristics of the seismic wave dynamics studied are the time linearity and spatial linearity, the average half-period, the exit angle and the azimuth, the peak frequency of the spectrum, the corner frequency, the relative frequency bandwidth, The relative spectrum peak, the absolute value of the slope of the potential of the high frequency band, the time entropy of the coda, the amplitude ratio, the variation of the duration, and the like.