APPLICATION OF MATHEMATICAL MORPHOLOGY FILTER IN ANALYSES OF BASELINE BETWEEN GPS STATIONS
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摘要: 通过GAMIT软件得到福建省连续观测GPS基准站基线时间序列,并引入数学形态滤波法,过滤基线中的白噪音和脉冲扰动。以福建省主要断裂带为研究背景,研究GPS基线时间序列、跨断层短水准观测资料与福建主要断层的相关性,分析了影响基线变化的因素,以及地壳水平运动与应力积累的关系。Abstract: First, time series of baseline observation of GPS continuous sites in FuJian province is calculated by use of the GAMIT program, then, white noise and impulsive perturbation in the time series are removed using mathematical morphology filter.Then, taken main fault zone of FuJian as research background, the relationship between GPS baseline series, short leveling deformation observation data of crossfault sites and regional crustal motion in Fujian is studied.The influence of mail factors of the quality of the GPS baseline is analyzed, and the relationship between crustal movement and principal compression stress are obtained.
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Key words:
- GPS baseline /
- crustal deformation /
- Mathematical morphology filter
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[1] 张晓亮,江在森,王敏,等.利用GPS连续站资料研究地壳运动与地震的关系[J].大地测量与地球动力学,2006,26(4):63-68. [2] 江在森,武艳强,方颖,等.汶川8.0级地震前区域地壳运动与应变场动态特征[J].地震,2009,29(1):68-76. [3] 周硕愚,帅平.中国大陆及其东南沿海现时地壳运动[J].自然科学进展,2000,10(3):273-277. [4] 丁学仁,吴绍祖,陈光.福建GPS台位移时间序列分析[J].国际地震动态,2007,(10):15-20. [5] 张风霜,武艳强,韩月萍,等.GPS连续观测站基线与地震危险性分析[J].华北地震科学,2010,28(4):15-23. [6] 顾国华,张晶,王武星,等.中国地壳运动观测网络基准站水平位移向量时间序列[J].地震,2003,23(2):39-47. [7] 张燕,吴云,施顺英,等.GPS时间序列提示地震前兆的初步探索[J].大地测量与地球动力学,2005,25(3):96-99. [8] 丁学仁,胡新康,刘序俨.福建地区地块运动时空变化特征研究[J].大地测量与地球动力学,2006,26(2):58-61. [9] 杨博,占伟,高艳龙,等.GNSS垂向形变场信息提取的尝试[J].华北地震科学,2012,30(1):1-5. [10] 陈光,李祖宁,林志彬,等.福建地区跨断层场地特征研究[J].华北地震科学,2011,29(3):52-56. [11] 杜历英,李建虎,王静.GPS地震的多路径误差探讨[J].华北地震科学,2010,28,(3):25-27. -
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