Liu Xiaoyang, Sun Guangtong, Li Feng, Song Ping, Liu Jun, Qian An, Wang Qiuling. Research on microdeformation monitoring of foundation pit based on ground-based SAR[J]. Infrared and Laser Engineering, 2018, 47(3): 317002-0317002(7). doi: 10.3788/IRLA201847.0317002
| Citation:
|
Liu Xiaoyang, Sun Guangtong, Li Feng, Song Ping, Liu Jun, Qian An, Wang Qiuling. Research on microdeformation monitoring of foundation pit based on ground-based SAR[J]. Infrared and Laser Engineering, 2018, 47(3): 317002-0317002(7). doi: 10.3788/IRLA201847.0317002
|
Research on microdeformation monitoring of foundation pit based on ground-based SAR
- Received Date: 2017-10-05
- Rev Recd Date:
2017-11-03
- Publish Date:
2018-03-25
-
Abstract
The ground-based SAR, as a new type of ground remote sensing technology, is widely used in the field of microdeformation monitoring because of its high precision, all-weather, flexible and real-time continuous observation. Based on the deep research on the key technical problems of micro-deformation monitoring of ground-based SAR, combined with the characteristics of foundation pit monitoring, the method of weighted median filter denoising was used to improve the signal-to-noise ratio of interferogram and weaken the noise phase difference. The method of atmospheric correction based on the PSC network was proposed to reduce the impact of meteorological disturbances and weaken the atmospheric phase difference. The improved methods were applied to the foundation pit monitoring experiment. The experimental results show that the weighted median filter and PSC network weather correction effectively weaken the phase change caused by noise and atmospheric, and achieve monitoring accruacy of submillimeter. In order to verify the accuracy of ground-based SAR monitoring, the synchronous observation is carried out using high-precision total station, the monitoring results are consistent with the results of ground-based SAR, which verifies the reliability and feasibility of ground-based SAR technique in monitoring the microdeformation of pits.
-
References
|
[1]
|
Luzi G, Pieraccini M, Mecatti D, et al. Monitoring of an alpine glacier by means of ground-based SAR interferometry[J]. IEEE Geoscience and Remote Sensing Letters, 2007, 4(3):495-499. |
|
[2]
|
Atzeni C, Barla M, Pieraccini M, et al. Early warning monitoring of natural and engineered slopes with ground-based synthetic aperture radar[J]. Rock Mechanics and Rock Engineering, 2015, 48(1):235-246. |
|
[3]
|
Yang Honglei, Peng Junhuan, Cui Hongyao. Slope of large-scale open-pit mine monitoring deformations by using ground-based interferometry[J]. Progress in Geophysics, 2012, 27(4):1804-1811. (in Chinese) |
|
[4]
|
Xing Cheng, Han Xianquan, Zhou Xiao, et al. Application of GB-SAR to dam monitoring[J]. Journal of Yangtze River Scientific Research Institute, 2014, 31(7):128-134. (in Chinese) |
|
[5]
|
Tarchi D, Rudolf H, Pieraccini M, et al. Remote monitoring of buildings using a ground-based SAR:application to cultural heritage survey[J]. International Journal of Remote Sensing, 2000, 21(18):3545-3551. |
|
[6]
|
Xu Yaming, Wang Peng, Zhou Xiao, et al. Research on dynamic deformation monitoring of bridges using ground-based interferometric radar IBIS-S[J]. Geomatics and Information Science of Wuhan University, 2013, 38(7):845-849. (in Chinese) |
|
[7]
|
Wang Yanping, Huang Zengshu, Tan Weixian, et al. Ground-based SAR interferometric phase filtering optimization[J]. Journal of Signal Processing, 2015, 31(11):1504-1509. (in Chinese) |
|
[8]
|
Duan Keqing, Xiang Jiabin, Wang Feng. An algorithm of weighted periodic pivoting median filtering for InSAR phase fringe[J]. Journal of Air Force Radar Academy, 2005, 19(1):4-6. (in Chinese) |
|
[9]
|
Xu Yaming, Zhou Xiao, Wang Peng, et al. A method of constructing permanent scatterers network to correct the meteorological disturbance by GB-SAR[J]. Geomatics and Information Science of Wuhan University, 2016, 41(8):1007-1012. (in Chinese) |
|
[10]
|
Liu Xiaoyang, Sun Guangtong, Song Ping, et al. Correction of atmospheric effect in ASAR interferogram using MODIS data[J]. Infrared and Laser Engineering, 2014, 43(12):4111-4116. (in Chinese) |
-
-
Proportional views
-
DownLoad: