可控震源勘探定位导航技术
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摘要
随着可控震源在地震勘探中的广泛使用,精确测定震源激发点的位置越来越重要。采用DGPS(差分全球卫星定位系统)实施实时点位监控,对保证施工质量、提高生产效率起着积极的作用;同时GPS技术的使用也为震源勘探导航实现无桩界勘探提供了技术支持。本文首先对可控震源勘探定位导航中的关键技术进行了分析,然后介绍了一种新型可控震源勘探定位导航系统,该系统以专用震源GPS——MV2为信号源,以工控机为硬件平台,实现了以卫星影像图和工程矢量图为背景的震源勘探高精度定位和导航。该系统的应用可以使无桩界勘探成为可能。
With the widespread use of vibroseis for geophysical prospecting, accurately determining the location of shot points becomes more and more important. The applicaiton of DGPS (Differential Global Positioning System) for monitoring the location of shot points is playing an active role to ensure the exploration quality and efficiency. At the same time, the application of GPS technology provids technical support for the navigation of vibroseis to realize non-stake exploration. At first, this paper analyses the key technologies applied in the positioning and navigation of vibroseis, and then introduces a new set of vibroseis positioning and navigation system. By adopting the GPS-MV2 as the signal source and adopting the IPC as the hardware platform, this system can realize the high-precision positioning and navigation with the background of satellite image maps and engineering vector maps. The application of vibroseis makes the non-stake exploration possible.
With the widespread use of vibroseis for geophysical prospecting, accurately determining the location of shot points becomes more and more important. The applicaiton of DGPS (Differential Global Positioning System) for monitoring the location of shot points is playing an active role to ensure the exploration quality and efficiency. At the same time, the application of GPS technology provids technical support for the navigation of vibroseis to realize non-stake exploration. At first, this paper analyses the key technologies applied in the positioning and navigation of vibroseis, and then introduces a new set of vibroseis positioning and navigation system. By adopting the GPS-MV2 as the signal source and adopting the IPC as the hardware platform, this system can realize the high-precision positioning and navigation with the background of satellite image maps and engineering vector maps. The application of vibroseis makes the non-stake exploration possible.
引文
1王忠仁,高健,孙锋.脉冲编码可控震源信号设计.地球物理学进展,2008,23(6)
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