Results 141 to 150 of about 1,368 (192)

Measure groundwater pumping induced subsidence with D-InSAR

Proceedings. 2005 IEEE International Geoscience and Remote Sensing Symposium, 2005. IGARSS '05., 2005
InSAR technology is applied to measuring surface deformation caused by groundwater extraction in this Paper. Cangzhou city, where the most severe ground subsidence in China has occurred, is selected as the work area. Residential, industrial and agricultural water of this region is provided by groundwater pumping and large-area funnel-shape subsidence ...
null Lixia Gong, null Jingfa Zhang, null Qingshi Guo   +2 more
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Soil Moisture Estimation in time with D-InSAR

IGARSS 2008 - 2008 IEEE International Geoscience and Remote Sensing Symposium, 2008
This paper explores the potential to estimate soil moisture in the presence of vegetation using differential SAR interferometry and polarimetry. It is well known that a change in soil moisture changes the penetration depth of the electromagnetic wave, hence inducing an "artificial" change in the observed phase center. The presence of vegetation, or the
Irena Hajnsek, Pau Prats
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Geosynchronous InSAR and D-InSAR

2018
Geosynchronous SAR has almost the same trajectory during its orbit period which makes it suitable for interferometric SAR and differential interferometric SAR (InSAR and D-InSAR) processing. But the very large orbit height, which is about 60 times larger than that in a low Earth orbit SAR, will cause lots of special issues in the repeated-track InSAR ...
Teng Long, Cheng Hu, Zegang Ding, Xichao Dong, Weiming Tian, Tao Zeng   +5 more
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Application of D-InSAR Technique for the Bam Earthquake

2010 International Conference on Intelligent Computation Technology and Automation, 2010
The difference synthetic aperture radar interferometer (D-InSAR) is developed based on the synthetic aperture radar (InSAR) technique. It can be used to detect the earth surface deformation, fire hazard, earthquake and etc.. The imaging principle and data process procedure are introduced.
Peng Shurong, Wang Xueqin, Liu Dan
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Design of An Airborne Multi-frequency D-InSAR System

2018 IEEE 3rd Advanced Information Technology, Electronic and Automation Control Conference (IAEAC), 2018
In the field of high precision deformation detection, the airborne D-InSAR technique has great potential. Considering the shortcomings of traditional D-InSAR technique, a multi-frequency D-InSAR system is presented in this paper. This method improves the accuracy of detection by reducing the model error, parameter error and data processing error.
Jieqiong Zhang, Yongqiang Deng
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Monitoring city subsidence by D-InSAR in Tianjin area

IEEE International IEEE International IEEE International Geoscience and Remote Sensing Symposium, 2004. IGARSS '04. Proceedings. 2004, 2004
D-InSAR technique has been widely adopted to monitor land subsidence caused by withdrawal of water, oil, gas, and other minerals. Though many cities in China have seriously suffered from land subsidence caused by ground water over-extracting, few of them have enough money to do the leveling control of the subsidence.
null Tao Li, null Jingnan Liu, null Mingsheng Liao, null Shaojun Kuang, null Xu Lu   +4 more
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Monitoring Land Subsidence in Suzhou City Using D-InSAR Technique

2009 2nd International Congress on Image and Signal Processing, 2009
This paper mainly discusses how to monitor the land subsidence in Suzhou city using differential Interferometric Synthetic Aperture SAR (D-InSAR) technique. It firstly introduces the principle and data processing flowchart of D- InSAR. Then it carries out test and gets the land subsidence in Suzhou city using two pass D-InSAR technique.
Zhiyong Wang, Jixian Zhang, Guoman Huang, Yonghong Zhang   +3 more
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Three Dimensional Deformation Retrieval in GEO D-InSAR

2018
GEO SAR has characteristics of short revisit time of less than one day, extended coverage area with even larger than 1000 km and long coverage time of several hours for the scene of interest, and thus can provide data of a certain region of interest with lots of view angles.
Teng Long, Cheng Hu, Zegang Ding, Xichao Dong, Weiming Tian, Tao Zeng   +5 more
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Slope Sliding Direction Estimate Based on Ground-based D-InSAR

2019 6th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR), 2019
Landslide is a common natural geological disaster, and the development process of landslide is so complicated, then makes the prevention and control of landslide very difficult. In the process of landslide monitoring and control, the estimation of slope sliding direction is very important.
Lin Qi, Mingzhi Zhang, Weixian Tan, Pingping Huang, Wei Xu, Yaolong Qi   +5 more
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Monitoring the coseismic deformation of L'Aquila earthquake using D-InSAR technique

2010 2nd International Conference on Advanced Computer Control, 2010
The Mw=6.3 L'Aquila earthquake, taking place on 6th April 2009 in Italy, caused severe surface deformation. This paper described that the differential interferometric SAR (D-InSAR) technique and ENVISAT ASAR data were used to detect the L'Aquila co-seismic deformation fields.
Zhiyong Wang, Jixian Zhang, Guoman Huang, Tian'en Chen   +3 more
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