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A preliminary design of inclinometer for real-time monitoring system of soil displacement is proposed. The system is developed using accelerometer sensor with microelectromechanical system (MEMS) device. The main apparatus consists of a…

仪器与探测器 · 物理学 2011-03-10 D. Hanto , B. Widiyatmoko , B. Hermanto , P. Puranto , L. T. Handoko

Soil moisture estimation is an important task to enable precision agriculture in creating optimal plans for irrigation, fertilization, and harvest. It is common to utilize statistical and machine learning models to estimate soil moisture…

计算机视觉与模式识别 · 计算机科学 2024-08-22 Mohammed Rakib , Adil Aman Mohammed , D. Cole Diggins , Sumit Sharma , Jeff Michael Sadler , Tyson Ochsner , Arun Bagavathi

Understanding the scattering mechanisms from the ground surface in the presence of different vegetation densities is necessary for the interpretation of P-band Synthetic Aperture Radar (SAR) observations and for the design of geophysical…

We present a new method to invert variable stress changes of fractures from InSAR ground displacements. Fractures can be either faults or magma intrusions, embeded in a 3D heterogeneous crust with prominent topographies. The method is based…

地球物理 · 物理学 2022-12-07 Farshid Dabaghi , Oliver Bodart , Valérie Cayol

Simulating high-resolution Synthetic Aperture Radar (SAR) images in complex scenes has consistently presented a significant research challenge. The development of a microwave-domain surface scattering model and its reversibility are poised…

计算机视觉与模式识别 · 计算机科学 2024-01-03 Jiangtao Wei , Yixiang Luomei , Xu Zhang , Feng Xu

Interferometric Synthetic Aperture Radar (InSAR) Imaging methods are usually based on algorithms of match-filtering type, without considering the scene's characteristic, which causes limited imaging quality. Besides, post-processing steps…

信号处理 · 电气工程与系统科学 2022-10-07 Xu Zhan , Xiaoling Zhang , Shunjun Wei , Jun Shi

Seismic full-waveform inversion tries to estimate subsurface medium parameters from seismic data. Areas with subsurface salt bodies are of particular interest because they often have hydrocarbon reservoirs on their sides or underneath.…

计算工程、金融与科学 · 计算机科学 2020-12-23 Ajinkya Kadu , Tristan van Leeuwen , Wim A. Mulder

Autonomous exploration of unknown space is an essential component for the deployment of mobile robots in the real world. Safe navigation is crucial for all robotics applications and requires accurate and consistent maps of the robot's…

机器人学 · 计算机科学 2026-01-13 Sotiris Papatheodorou , Simon Boche , Sebastián Barbas Laina , Stefan Leutenegger

In this paper, we study the optimization of the sensing accuracy of unmanned aerial vehicle (UAV)-based dual-baseline interferometric synthetic aperture radar (InSAR) systems. A swarm of three UAV-synthetic aperture radar (SAR) systems is…

信号处理 · 电气工程与系统科学 2024-11-05 Mohamed-Amine Lahmeri , Víctor Mustieles-Pérez , Martin Vossiek , Gerhard Krieger , Robert Schober

The integration of radar sensors and communication networks as envisioned for the 6G wireless networks poses significant security risks, e.g., the user position information can be released to an unauthorized dual-functional base station…

信息论 · 计算机科学 2025-01-28 Fan Xu , Wenhai Lai , Kaiming Shen

Sidescan sonar intensity encodes information about the changes of surface normal of the seabed. However, other factors such as seabed geometry as well as its material composition also affect the return intensity. One can model these…

机器人学 · 计算机科学 2022-08-25 Yiping Xie , Nils Bore , John Folkesson

This paper describes an interdisciplinary approach to geometry modeling of geospatial boundaries. The objective is to extract surfaces from irregular spatial patterns using differential geometry and obtain coherent directional predictions…

计算工程、金融与科学 · 计算机科学 2020-06-09 Raymond Leung

Satellite radar altimetry is one of the most powerful techniques for measuring sea surface height variations, with applications ranging from operational oceanography to climate research. Over open oceans, altimeter return waveforms…

大气与海洋物理 · 物理学 2017-09-25 Ribana Roscher , Bernd Uebbing , Jürgen Kusche

The increasing frequency of environmental hazards due to climate change underscores the urgent need for effective monitoring systems. Current approaches either rely on expensive labelled datasets, struggle with seasonal variations, or…

计算机视觉与模式识别 · 计算机科学 2025-03-04 Samuel Garske , Konrad Heidler , Bradley Evans , KC Wong , Xiao Xiang Zhu

The dynamics of the upper mesosphere of Venus (~85-115 km) have been characterized as a combination of a retrograde superrotating zonal wind (RSZ) with a subsolar-to-antisolar flow (SSAS). Numerous mm-wave single-dish observations have been…

地球与行星天体物理 · 物理学 2015-06-04 A. Moullet , E. Lellouch , R. Moreno , M. Gurwell , H. Sagawa

Remote sensing satellite data offer the unique possibility to map land use land cover transformations by providing spatially explicit information. However, detection of short-term processes and land use patterns of high spatial-temporal…

计算机视觉与模式识别 · 计算机科学 2017-09-25 Ron Hagensieker , Ribana Roscher , Johannes Rosentreter , Benjamin Jakimow , Björn Waske

Large Scale Structures (LSS) in the universe can be traced using the neutral atomic hydrogen HI through its 21cm emission. Such a 3D matter distribution map can be used to test the Cosmological model and to constrain the Dark Energy…

宇宙学与河外天体物理 · 物理学 2015-05-30 R. Ansari , J. E. Campagne , P. Colom , J. M. Le Goff , C. Magneville , J. M. Martin , M. Moniez , J. Rich , C. Yèche

In this paper we assess the snow cover and its dynamics for the western river basins of the Indus River system and their subbasins located in Afghanistan, China, India and Pakistan for the period 2001-2012. First, we validate the Moderate…

大气与海洋物理 · 物理学 2015-02-04 Shabeh ul Hasson , Valerio Lucarini , Mobushir Riaz Khan , Marcello Petitta , Tobias Bolch , Giovanna Gioli

Neutron irradiation produces, within a few picoseconds, displacement cascades that are sequences of atomic collisions generating point and extended defects which subsequently affects the long-term evolution of materials. The diversity of…

In conventional colocated multiple-input multiple-output (MIMO) radars, practical waveform constraints including peak-to-average power ratio, constant or bounded modulus lead to a significant performance reduction of transmit beampattern,…

信号处理 · 电气工程与系统科学 2024-10-08 Shengyao Chen , Minghui He , Longyao Ran , Hongtao Li , Feng Xi , Sirui Tian , Zhong Liu