According to the characteristics of craft parameters of high-speed precision positioning X-Y workpiece stage,the dynamic state accuracy was analyzed,including the step function time response,the frequency response,and the dynamic stiffness kD of the system.

After analyzing the structure of SEG-D format, the paper presented the method of monitoring the parameters of seismic records by software, which can automatically show file number, sample rate, pre-amp gain, shot number, shot-line number and spread line number as well as starting and ending stake numbe

Since SEG-D format is used as recording format of the acquisition system and has various version,which needs to accurately know the position,byte size and contents the header information of SEG-D file is stored in when carrying out on-site QC and subsequent data processing.

Highlights in anisotropy study in SEG annual meeting of the year 2006;

Development orientation of integrated geophysical and geochemical techniques from 76th SEG annual meeting point of view;