摘要
在野外地震资料采集中,如何快速地实施定位和获取高精度的坐标是物探领域GPS应用的一个重要的研究方向。如果将GPS广域差分应用在可控震源上,可以较好地解决差分信号影响采集效率这一难题。本文通过对理论数据、室内数据、野外数据的分析和试验,提出了陆地物探作业用非商业广域差分SBAS系统的卫星信号代替地面GPS基准站的差分信号的方法,避开地面上的障碍物对GPS差分信号的影响,达到提高震源地震作业生产效率的目的,并取得了成功。
In the field seismic data acquisition, how to quickly locate and access the high-precision coordinate data are im portant research directions for GPS application in geophysical exploration. By adopting the Wide Area Differential GPS in vibrator, the influence caused by differential signal to acquisition efficiency can be solved. In this paper, after analysing the theoretical data, in-room data and field data, one method was proposed, instead of the differential signal from GPS base station by the non-satellite signal from WAD SBAS. This method can avoid obstacles impact to the GPS differential signal and proved to be helpful for improving the production efficiency.
出处
《物探装备》
2010年第2期87-91,共5页
Equipment for Geophysical Prospecting
关键词
可控震源
双频GPS
广域差分
差分信号
vibraoseis, dual-frequency GPS, wide area differential, differential signal
