浅层地下爆炸层析成像信息优化获取技术
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摘要
基于地震层析成像理论提出了地下爆炸冲击波超压时空场重建技术。从模型离散化和传感器布局两方面进行成像信息优化,提高地下爆炸场层析成像信息的有效性。模型离散化方面,根据冲击波的的衰减规律,提出了不规则网格划分方法;传感器布局方面,根据数学上欠定问题理论与地震波传输规律,提出了指导传感器布局的指标及优化算法,实现传感器合理布局。仿真表明,层析成像信息优化获取技术可以最大限度地提高数据利用率,使得反演过程更稳定,反演误差更小。
A technology of shock wave overpressure space-time field reconstruction about underground explosion was put forward,based on the theory of seismic tomography. In order to improve the underground explosion field tomography information effectively,the paper optimized imaging information from two aspects of model discretization and sensor layout. For discrete model,the irregular grid was adopted according to the attenuation rule of shock wave. For the sensor layout,according to the mathematical underdetermined problem theory and seismic wave propagation law,put forward the index and optimization algorithm for guiding the sensor layout,realize the rational layout of sensors.Simulation results show that,tomography information optimization extraction can maximize the utilization of data,which makes the inversion process is more stable,the inversion error is small.
A technology of shock wave overpressure space-time field reconstruction about underground explosion was put forward,based on the theory of seismic tomography. In order to improve the underground explosion field tomography information effectively,the paper optimized imaging information from two aspects of model discretization and sensor layout. For discrete model,the irregular grid was adopted according to the attenuation rule of shock wave. For the sensor layout,according to the mathematical underdetermined problem theory and seismic wave propagation law,put forward the index and optimization algorithm for guiding the sensor layout,realize the rational layout of sensors.Simulation results show that,tomography information optimization extraction can maximize the utilization of data,which makes the inversion process is more stable,the inversion error is small.
引文
[1]邱艳宇,卢红标,蔡力艮.爆炸冲击波信号处理方法比较[J].爆破,2010,327(1):92-95.
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[3]童平.地震层析成像方法及其应用研究[D].北京:清华大学,2012.
[4]李石坚,廖备水,吴健.面向目标跟踪的传感器网络设计、实现和布局优化[J].传感技术学报,2007,20(12):2622-2630.
[5]刘国华,王振宇,孙坚.弹性波层析成像及其在土木工程中的应用[J].土木工程学报,2003,36(5):76-81.
[6]成谷.地震反射走时层析理论与应用研究[D].上海:同济大学,2004:6.
[7]Zolta'n We'ber.Seismic Traveltime Tomography:A Simulated Annealing Approach[J].Physics of the Earth and Planetary Interiors,2000,119:149-159.
[8]白苗苗,郭亚丽,王黎明.基于爆炸超压场重建的传感器优化布局技术研究[J].传感技术学报,2014,27(7):886-892.
[9]林大超,白春华.爆炸地震效应[M].北京:地质出版社,2007.
[10]LanL an Zhen,Ling Wang,Xiuting Wang.A Novel PSO-Inspired Probability-Based Binary Optimization Algorithm[C]//Information Science and Engineering,2008.ISISE’08.International Symposium on.IEEE,2008:248-251.
[11]高海兵,周驰,高亮.广义粒子群优化模型[J].计算机学报,2005,28(12):1980-1987.
[12]刘洪波,王秀坤,谭国真.粒子群优化算法的收敛性分析及其混沌改进算法[J].控制与决策,2006,21(6):636-645.
[2]仲倩.爆炸源毁伤效应测评方法研究[D].南京:南京理工大学,2007:7.
[3]童平.地震层析成像方法及其应用研究[D].北京:清华大学,2012.
[4]李石坚,廖备水,吴健.面向目标跟踪的传感器网络设计、实现和布局优化[J].传感技术学报,2007,20(12):2622-2630.
[5]刘国华,王振宇,孙坚.弹性波层析成像及其在土木工程中的应用[J].土木工程学报,2003,36(5):76-81.
[6]成谷.地震反射走时层析理论与应用研究[D].上海:同济大学,2004:6.
[7]Zolta'n We'ber.Seismic Traveltime Tomography:A Simulated Annealing Approach[J].Physics of the Earth and Planetary Interiors,2000,119:149-159.
[8]白苗苗,郭亚丽,王黎明.基于爆炸超压场重建的传感器优化布局技术研究[J].传感技术学报,2014,27(7):886-892.
[9]林大超,白春华.爆炸地震效应[M].北京:地质出版社,2007.
[10]LanL an Zhen,Ling Wang,Xiuting Wang.A Novel PSO-Inspired Probability-Based Binary Optimization Algorithm[C]//Information Science and Engineering,2008.ISISE’08.International Symposium on.IEEE,2008:248-251.
[11]高海兵,周驰,高亮.广义粒子群优化模型[J].计算机学报,2005,28(12):1980-1987.
[12]刘洪波,王秀坤,谭国真.粒子群优化算法的收敛性分析及其混沌改进算法[J].控制与决策,2006,21(6):636-645.
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