利用盒子波技术设计野外观测系统

盒子波技术可以较准确地获得干扰波的速度、传播方向以及资料的信噪比信息，能任意进行各种面积的检波器组合。因此，可以根据勘探区域的地表和地下地质条件，利用盒子波技术选择经济有效的检波器组合形式，获得较好的采集资料。首先，简单介绍了盒子波技术在顺托果勒地区的应用。然后，利用盒子波技术中的方形排列进行了检波器组合个数、组合基距、组合图形及室内组合和野外组合的分析和比较，得出了①检波器组合是提高记录信噪比的必要手段；②室内检波器组合的动态范围和去噪能力优于野外检波器组合；③经静校正后再做室内检波器组合，将保留记录的高频成分，大大提高分辨率等结论。最后，设计了一种新的单点多线二维地震观测系统，即把野外组合接收优化为野外单点多线接收，经室内预处理后再进行组合，充分保持了地震记录的原始分辨率，提高了地表和地下地质条件复杂地区目的层信号的分辨率和信噪比。

The application of box wave technique in planning field survey system

The box wave technique can figure out the velocity and propagation direction of noise wave and the ratio of signal to noise, also test multifarious geophone arrays to gain the best economical and effective array. Firstly, the application of box wave technique in Shuntuoguole area is presented. The number of geophone in array, different array length, various array figure and array method between in processing and in field are analyzed and compared,and the following summing-ups are found that the geophone array is a essential method to improve the signal/noise ratio, and the dynamic range and the ability to decrease the noise of the geophone array in processing are better than that in field, then after the static correction, the geophone array in processing will keep the high frequency component to increase the resolution. Lastly, a new single-geophone multi-line 2-D seismic survey system is designed. This method will increase the seismic wave resolution and signal/noise ratio of target reflector in complicated area.Otherwise the survey system will induce flexibility in processing, and is highly suitable for collecting seismic data by digital geophone.