Xianhai Meng

Beihang University

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Qin Yang

Tibet University

Jigang Li

Beihang University

Jianxing Zhang

Huazhong University of Science and Technology

Guoyi Mei

Beihang University

Xing Liang

Southwest Jiaotong University

Zhongxiang Duan

Beihang University

Ping Xu

Beihang University

Chen Qiming

Systems Engineering Society of China

Pengfei Zhan

China Mobile (China)

Qin Yang

University of Connecticut

Cooperative Institutions

Beihang University

Chinese Academy of Sciences

Institute of Software

State Key Laboratory of Software Development Environment

University of Chinese Academy of Sciences

Beijing Institute of Technology

Tsinghua University

University of Hertfordshire

Southwest Jiaotong University

Sun Yat-sen University

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

Representation of a velocity model with implicitly embedded interface information

Computers & Geosciences (2015)

Jianxing Zhang Qin Yang Jigang Li Xianhai Meng Xing Liang

Discontinuity (linguistics)

Representation

Interface (matter)

10.1016/j.cageo.2015.06.012

Cite

Citations (1)

3D Structural Geological Modeling Based on Morphing Field

Lecture notes in electrical engineering (2011)

Xianhai Meng Jigang Li Qin Yang

Morphing

Stratum

10.1007/978-1-4471-2386-6_20

Cite

Citations (1)

Triangular framework mesh generation of 3D geological structure

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE (2013)

Xianhai Meng Kun Zhou Jigang Li Qin Yang

The dynamic simulation of oil migration and accumulation is an important issue on the research of petroleum exploration, and it is a numerical simulation process with special requirement on the framework mesh of 3D geological models, which means that the mesh should have same geometry and topology relation near the intersected part of geological surfaces. In this paper, basing on the conforming Delaunay triangulation algorithm to construct mesh of individual geological stratum or fault, a novel link-Delaunay-triangulation method is presented to achieve the geometric and topological consistency in the intersected line between two surfaces, also with the analysis of termination of our algorithm. Finally, some examples of the geological framework mesh are provided and the experimental result proved that the algorithm's effectiveness in engineering practice.

Ruppert's algorithm

Triangle mesh

10.1117/12.2013955

Cite

Citations (2)

Complex conforming Delaunay triangulation

Science China Information Sciences (2010)

Xianhai Meng Jigang Li Qin Yang Qiang Cai Qiming Chen

Surface triangulation

Minimum-weight triangulation

Point set triangulation

Chew's second algorithm

10.1007/s11432-010-0097-6

Cite

Citations (4)

Surface mesh generation for surface models by 2D conforming delaunay triangulation

Beijing Hangkong Hangtian Daxue xuebao (2005)

Jigang Li Qin Yang Xianhai Meng Chen Qiming

Surface triangulation

Source

Cite

Citations (2)

Robust Delaunay triangulation for domain with acute angles

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE (2013)

Xianhai Meng Guoyi Mei

A new algorithm is presented to automatic generate conforming Delaunay triangulation of non-manifold geometric domains with acute angles. The algorithm is based on Delaunay refinement technique, which often failed to terminate when there are small angles in input geometry. By assigning proper weights to vertices on sharp-angled elements and take place Delaunay triangulation with weighted Delaunay triangulation, the algorithm can accept any inputs without any bound on angle and without setting any protected area and adding any new vertices near the sharp-angled elements. The algorithm also guarantees bounded circumradius to shortest edge length for all elements except the ones near small input angles. A simple terminator proof and some results are also presented.

Surface triangulation

Point set triangulation

Chew's second algorithm

Minimum-weight triangulation

Ruppert's algorithm

10.1117/12.2031767

Cite

Citations (1)

Automatic RMO picking in seismic travel time tomography

Jianxing Zhang Qin Yang Xianhai Meng Jigang Li

The Residual Move Out (RMO) provides crucial information for updating velocity model in Pre-stack tomography. The accuracy and precision of picking result significantly determine the efficiency of the scheme. Two methods are produced respectively to warrant the requirements. The first method, namely energy spectrum based method, is conducted in a fully automatic way to ensure tomographic efficiency, and is very adapted to implement at the early iterative process of the tomography. The other method, which acts as a semi-automatic pickup based on the estimation of fourth-order cumulants, is executed to guarantee the accuracy for the late tomographic iterations. Practical applications witness the good effect of the two introduced approaches.

Pickup

10.1109/icnc.2014.6975997

Cite

Citations (1)

Local PEBI grid generation method for reverse faults

Computers & Geosciences (2017)

Xianhai Meng Zhongxiang Duan Qin Yang Xing Liang

Centroidal Voronoi tessellation

10.1016/j.cageo.2017.09.012

Cite

Citations (7)

Design and Implementation of a General Digital Radar Echo Simulator

Modern Radar (2007)

Xianhai Meng

In this paper,one general radar echo simulator based on DDWS technology is introduced.After the waveform data loading,the simulator can realize waveform data replay and generate variant waveforms.The control core is held by one FPGA and mega-byte FLASH is used as storage unit.The general interface,control logic reprogrammable and device coherent are specially designed.This simulator has tabloid general usage and sodality user's interface.At the end of this paper,one image about surface target and the chirp signal's compression result is presented.

Echo (communications protocol)

Interface (matter)

Chirp

Source

Cite

Citations (0)

A efficient and robust method for complexly faulted horizon reconstruction based on meshes cutting and interpolating

Jigang Li Xianhai Meng Yufeng Li Qin Yang

3d-geological modeling is a means of improving data interpretation through visualization, as well as a way to generate support for numerical simulations of complex phenomena. Reconstructing horizons from scattered point clouds is an omnipresent task in 3d-geological modeling. As the geometrical representation of faults network is not watertight in the process of modeling for the reason of efficiency, the reconstructed horizons cut by the fault network are often topological inconsistency. A robust and efficient method to reconstruct topologically and geometrically consistent horizons based on meshes cutting and Discrete Smooth Interpolation (DSI) is proposed to tackle this problem. By representing the faults network with both triangular and rectangular mesh, and under the guide of macro spatial topology, the initial continuous mesh of a horizon could be cut by the faults network efficiently and robustly. DSI is adopted to further adjust the non-manifold mesh of horizon to their proper position while keeping the topological contact relation unchanged. The result shows that the horizons reconstructed are consistent. It indicates that the method can solve the inconsistency of the horizons caused by the inconsistency of the faults network.

Interpolation

Representation

Position (finance)

Triangle mesh

10.1109/csae.2012.6272980

Cite

Citations (1)