TY - GEN
T1 - Using D-InSAR and offset tracking technique to monitor mining subsidence
AU - Ou, Depin
AU - Tan, Kun
AU - Yan, Shiyong
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/8/25
Y1 - 2016/8/25
N2 - Differential synthetic aperture radar interferometry (D-InSAR) technology is a popular method to monitor ground deformation. Two-pass D-InSAR and sub-pixel offset tracking approaches are presented to analyze the mining subsidence, which is located in Yuxian, Hebei province, China. The availability of 20 commissioned TerraSAR-X (TSX) Spotlight SAR images were acquired from 9th June 2015 to 4th January 2016. To avoid decorrelation between SAR acquisitions, every 11-day TSX Spotlight pair was processed so that 19 SAR image pairs were formed. While differential interferograms were obtained based on SRTM DEM, interference fringes are too much denser or de-coherence in the main mining area and result in phase unwrapping error or the wrong deformation. Although the phase unwrapping in rapid sedimentation rate's areas would be failed, we can obtain the mining direction by means of time series settlement image analyzing. D-InSAR technology has the limitation that high-gradient deformation zone cannot be unwrapped truly because high-gradient deformation zone will result in phrase overlap or decorrelation. To improve the accuracy of these areas, the pixel offset tracking technology is used. Comparing with the leveling results, the unequal settlement can reach up to 1m. In this experiment, two images in 3th August, 2015 and 4th January, 2016 were applied to calculate through sub-pixel offset tracking technology. The subsidence result is up to 1.96m in the main coal mining area.
AB - Differential synthetic aperture radar interferometry (D-InSAR) technology is a popular method to monitor ground deformation. Two-pass D-InSAR and sub-pixel offset tracking approaches are presented to analyze the mining subsidence, which is located in Yuxian, Hebei province, China. The availability of 20 commissioned TerraSAR-X (TSX) Spotlight SAR images were acquired from 9th June 2015 to 4th January 2016. To avoid decorrelation between SAR acquisitions, every 11-day TSX Spotlight pair was processed so that 19 SAR image pairs were formed. While differential interferograms were obtained based on SRTM DEM, interference fringes are too much denser or de-coherence in the main mining area and result in phase unwrapping error or the wrong deformation. Although the phase unwrapping in rapid sedimentation rate's areas would be failed, we can obtain the mining direction by means of time series settlement image analyzing. D-InSAR technology has the limitation that high-gradient deformation zone cannot be unwrapped truly because high-gradient deformation zone will result in phrase overlap or decorrelation. To improve the accuracy of these areas, the pixel offset tracking technology is used. Comparing with the leveling results, the unequal settlement can reach up to 1m. In this experiment, two images in 3th August, 2015 and 4th January, 2016 were applied to calculate through sub-pixel offset tracking technology. The subsidence result is up to 1.96m in the main coal mining area.
KW - Coal Mining Direction
KW - D-InSAR
KW - Deformation
KW - Offset Tracking
UR - https://www.scopus.com/pages/publications/84987959431
U2 - 10.1109/EORSA.2016.7552838
DO - 10.1109/EORSA.2016.7552838
M3 - 会议稿件
AN - SCOPUS:84987959431
T3 - 4th International Workshop on Earth Observation and Remote Sensing Applications, EORSA 2016 - Proceedings
SP - 400
EP - 404
BT - 4th International Workshop on Earth Observation and Remote Sensing Applications, EORSA 2016 - Proceedings
A2 - Gamba, Paolo
A2 - Xian, George
A2 - Liang, Shunlin
A2 - Weng, Qihao
A2 - Chen, Jing Ming
A2 - Liang, Shunlin
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 4th International Workshop on Earth Observation and Remote Sensing Applications, EORSA 2016
Y2 - 4 July 2016 through 6 July 2016
ER -