Results 11 to 20 of about 43,003 (262)

Validation for Ice Flow Velocity Variations of Shirase Glacier Derived From PALSAR-2 Offset Tracking

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
We have shown that the flow velocity of Shirase Glacier can be estimated by applying the offset tracking method to the amplitude images derived from the phased array type L-band synthetic aperture radar type-2 (PALSAR-2) onboard the Advanced Land ...
Kazuki Nakamura, Shigeru Aoki, Tsutomu Yamanokuchi, Takeshi Tamura, Koichiro Doi   +4 more
doaj   +1 more source

Robust packet loss compensation in the cloud‐based TT&C receiver using a predictive tracking loop with RBF network identification

IET Radar, Sonar & Navigation, 2023
In recent years, ground‐based aerospace tracking, telemetry and control (TT&C) systems have been shifting towards an IP‐based cloud TT&C network architecture to improve signal transmission efficiency and system flexibility. However, this new architecture
Yimin Fan, Tian Liu, Ting Li, Yi Zhang, Liu Liu, Yang Liu   +5 more
doaj   +1 more source

LabSAR, a one-GCP coregistration tool for SAR–InSAR local analysis in high-mountain regions

Frontiers in Remote Sensing, 2022
The coregistration of single-look complex (SLC) SAR images for InSAR or offset tracking applications is often performed by using an accurate DEM and precise orbital information. However, in cold regions, such DEMs are rare over high-latitude areas or not
Flora Weissgerber, Laurane Charrier, Laurane Charrier, Cyril Thomas, Jean-Marie Nicolas, Emmanuel Trouvé   +5 more
doaj   +1 more source

Ground deformation monitoring of open-pit coal mine based on SBAS-InSAR and offset tracking techniques

Meikuang Anquan, 2022
Using SBAS-InSAR based on StaMPS and taking Antaibao Open-pit Coal Mine as research area, this paper carries out time series interferometry processing on 33 sentinel ascending and descending images, extracts ground deformation information of open pit ...
SUN Jun, ZHANG Jin
doaj   +1 more source

Application research on Offset Tracking technology in monitoring oflarge surface deformation in coal mine subsidence area

Gong-kuang zidonghua, 2017
In view of problems of long monitoring cycle, low accuracy of extracted deformation quantity of surface shape existed in traditional coal mining subsidence monitoring methods, Offset Tracking technology was applied to monitoring of large deformation of ...
CHEN Shun, ZHENG Nanshan, QI Yun, BAN Meng   +3 more
doaj   +1 more source

Lava Mapping Using Sentinel-1 Data after the Occurrence of a Volcanic Eruption—The Case of Cumbre Vieja Eruption on La Palma, Canary Islands, Spain

Sensors, 2022
Volcanic eruptions pose a great threat to humans. In this context, volcanic hazard and risk assessment constitute crucial issues with respect to mitigating the effects of volcanic activity and ensuring the health and safety of inhabitants.
Aggeliki Kyriou, Konstantinos G. Nikolakopoulos   +1 more
doaj   +1 more source

SAR Offset Tracking

, 2022
This chapter introduces various methods for offset tracking using SAR imagery. The chapter starts with a brief introduction to the acquisition geometry and the imaging method of SAR sensors, including a description of radar speckle. Equations for offset tracking in the spatial domain and the frequency domain are derived. Signal-to-noise ratio and cross-
Leinss, Silvan, Li, Shiyi, Yan, Yajing, Altena, Bas   +3 more
openaire   +3 more sources

Time Series Analysis of Very Slow Landslides in the Three Gorges Region through Small Baseline SAR Offset Tracking

Remote Sensing, 2017
Sub-pixel offset tracking has been used in various applications, including measurements of glacier movement, earthquakes, landslides, etc., as a complementary method to time series InSAR. In this work, we explore the use of a small baseline subset (SBAS)
Luyi Sun, Jan-Peter Muller, Jinsong Chen
doaj   +1 more source

Line-of-Sight Glacier Velocity Estimation of Transboundary Glaciers in the Eastern Himalayas Using High-Resolution TerraSAR-X Data

Proceedings, 2023
Glacier velocity is one of the critical parameters for understanding the current health status of a glacier. According to the momentum law, mass is inversely proportional to velocity. A higher velocity may indicate a lower mass.
Arpan Sharma, Mousumi Gupta, Narpati Sharma, Santanu Gupta   +3 more
doaj   +1 more source

Seven-year variation in glacier surface velocity at Narsap Sermia in Southwest Greenland

GIScience & Remote Sensing, 2023
Glacier velocity is a critical factor closely related to ice dynamics of the Greenland ice sheet (GrIS). We present variations of ice velocity using space-based synthetic aperture radar (SAR) observations from July 2013 to September 2020.
Seong-Woo Jung, Sang-Hoon Hong
doaj   +1 more source