Local deformation monitoring using GPS in an open pit mine: initial study
Local deformation monitoring using GPS in an open pit mine: initial study
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DOI：
10.1007/s10291-003-0075-1
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发表时间：
2003-11
期刊：
影响因子：
4.9
通讯作者：
Donghyun Kim;R. Langley;J. Bond;A. Chrzanowski
中科院分区：
文献类型：
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作者：
Donghyun Kim;R. Langley;J. Bond;A. Chrzanowski
新玩法大学大地测量研究实验室（GRL）开发了高性能GPS RTK软件。该软件最初是为门式起重机自动转向而设计的。由于传统的大地测量变形监测技术的局限性，UNB的加拿大大地测量工程中心（CCGE）决定用GPS来增强其全自动变形监测系统。因此，GRL和CCGE共同努力，以达到所需的精度。作为第一步，在加拿大不列颠哥伦比亚省的高地谷铜矿进行了GPS实时动态（RTK）软件的测试。露天矿环境对全球定位系统可达到的准确度造成了某些限制。因此，对软件进行了修改，以满足这一特定项目的需要，并对数据进行了后处理，以供分析。本文介绍了在UNB采取的方法，以解决高精度的要求，在一个受约束的信号可用性环境。技术和科学方面的UNB软件，特别是在处理两个主要的错误（剩余对流层天顶延迟和多路径）在矿井，进行了讨论。介绍了在该矿进行的试验结果。
High-performance GPS RTK software has been developed within the Geodetic Research Laboratory (GRL) at the University of New Brunswick (UNB). This software was initially designed for gantry crane auto-steering. Due to limitations with classical geodetic deformation monitoring techniques, the Canadian Centre for Geodetic Engineering (CCGE) at UNB has decided to augment its fully automated deformation monitoring system with GPS. As a result, the GRL and CCGE have combined efforts to achieve the required precision. As a first step, tests of the GPS real-time kinematic (RTK) software have been carried out at Highland Valley Copper Mine in British Columbia, Canada. An open-pit mine environment places certain constraints on the achievable accuracies attainable with GPS. Consequently, the software has been modified to meet the needs of this particular project and data have been post-processed for analysis. This paper describes the approach taken at UNB to address high precision requirements in a constrained signal availability environment. Technical and scientific aspects of the UNB software, especially in handling two predominant errors (residual tropospheric zenith delay and multipath) at the mine, are discussed. Results of tests that have been carried out at the mine are presented.