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Weather radar data are critical for nowcasting and an integral component of numerical weather prediction models. While weather radar data provide valuable information at high resolution, their ground-based nature limits their availability,…

Atmospheric and Oceanic Physics · Physics 2024-03-07 Çağlar Küçük , Apostolos Giannakos , Stefan Schneider , Alexander Jann

Reliable geolocation of non-cooperative emitters in environments where Global Navigation Satellite Systems (GNSS) are unavailable or degraded is a key enabler for spectrum regulation, emergency response, autonomous mobility, and Integrated…

Signal Processing · Electrical Eng. & Systems 2026-04-17 Rafal Szczepanik

Recently developed automatic dense image matching algorithms are now being implemented for DSM/DTM production, with their pixel-level surface generation capability offering the prospect of partially alleviating the need for manual and…

Computer Vision and Pattern Recognition · Computer Science 2021-08-20 Rongjun Qin , Armin Gruen , Cive Fraser

Magnetic fields have important or dominant effects in many areas of astrophysics, but have been very difficult to quantify. Spectropolarimetry from Ground State Alignment (GSA) has been suggested as a direct tracer of magnetic field in…

Astrophysics of Galaxies · Physics 2019-03-28 Huirong Yan , Cecile Gry , Francois Boulanger , Francesco Leone

In this paper, we derive the Cramer-Rao bound (CRB) for joint target position and velocity estimation using an active or passive distributed radar network under more general, and practically occurring, conditions than assumed in previous…

Statistics Theory · Mathematics 2016-04-20 Qian He , Jianbin Hu , Rick S. Blum , Yonggang Wu

The Global Navigation Satellite System (GNSS) has been a very powerful and important contributor to all scientific questions related to precise positioning on Earth's surface, particularly as a mature technique in geodesy and geosciences.…

Geophysics · Physics 2015-10-27 Shuanggen Jin , Attila Komjathy

Proposed space-based gravitational wave antennas involve satellites arrayed either in an equilateral triangle around the earth in the ecliptic plane (the ecliptic-plane option) or in an equilateral triangle orbiting the sun in such a way…

General Relativity and Quantum Cosmology · Physics 2009-10-31 Thomas A. Moore , Ronald W. Hellings

The launch of KALPANA-1 satellite in the year 2002 heralded the establishment of an indigenous operational payload for meteorological predictions. This was further enhanced in the year 2003 with the launching of INSAT-3A satellite. The…

Computer Vision and Pattern Recognition · Computer Science 2018-05-23 Jignesh S. Bhatt , N. Padmanabhan

This paper introduces an approach to produce accurate 3D detection boxes for objects on the ground using single monocular images. We do so by merging 2D visual cues, 3D object dimensions, and ground plane constraints to produce boxes that…

Computer Vision and Pattern Recognition · Computer Science 2020-02-11 Akshay Rangesh , Mohan M. Trivedi

Propensity score (PS) matching to estimate causal effects of exposure is biased when unmeasured spatial confounding exists. Some exposures are continuous yet dependent on a binary variable (e.g., level of a contaminant (continuous) within a…

Methodology · Statistics 2026-05-04 Honghyok Kim , Michelle Bell

4D millimeter wave radars (4D radars) are new emerging sensors that provide point clouds of objects with both position and radial velocity measurements. Compared to LiDARs, they are more affordable and reliable sensors for robots'…

Robotics · Computer Science 2025-12-18 Xingyi Li , Han Zhang , Ziliang Wang , Yukai Yang , Weidong Chen

Global Positioning System (GPS) derived precipitable water vapor (PWV) is extensively being used in atmospheric remote sensing for applications like rainfall prediction. Many applications require PWV values with good resolution and without…

Atmospheric and Oceanic Physics · Physics 2019-03-18 Shilpa Manandhar , Soumyabrata Dev , Yee Hui Lee , Stefan Winkler

Across globe and space agencies nations recognize the importance of homogenized land cover information, prone to regular updates, both in the context of thematic and spatial resolutions. Recent sensor advances and the free distribution…

Other Computer Science · Computer Science 2017-02-28 Ioannis Manakos , Christina Karakizi , Giannis Gkinis , Konstantinos Karantzalos

Video Anomaly Detection (VAD) serves as a pivotal technology in the intelligent surveillance systems, enabling the temporal or spatial identification of anomalous events within videos. While existing reviews predominantly concentrate on…

Computer Vision and Pattern Recognition · Computer Science 2024-02-02 Yang Liu , Dingkang Yang , Yan Wang , Jing Liu , Jun Liu , Azzedine Boukerche , Peng Sun , Liang Song

In this paper, a new classification model based on covariance matrices is built in order to classify buried objects. The inputs of the proposed models are the hyperbola thumbnails obtained with a classical Ground Penetrating Radar (GPR)…

Computer Vision and Pattern Recognition · Computer Science 2024-11-21 Douba Jafuno , Ammar Mian , Guillaume Ginolhac , Nickolas Stelzenmuller

The generalized direction detection (GDD) problem involves determining the presence of a signal of interest within matrix-valued data, where the row and column spaces of the signal (if present) are known, but the speciffc coordinates are…

Applications · Statistics 2025-05-09 Zhenyu Xu , Weijian Liu , Changfei Wu , Qinglei Du , Jun Liu

Three-dimensional geospatial analysis is critical for applications in urban planning, climate adaptation, and environmental assessment. However, current methodologies depend on costly, specialized sensors, such as LiDAR and multispectral…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Mai Tsujimoto , Junjue Wang , Weihao Xuan , Naoto Yokoya

Assessing the structure of a building with non-invasive methods is an important problem. One of the possible approaches is to use GeoRadar to examine wall structures by analyzing the data obtained from the scans. We propose a data-driven…

Machine Learning · Computer Science 2022-08-26 Ildar Gilmutdinov , Ingrid Schloegel , Alois Hinterleitner , Peter Wonka , Michael Wimmer

Remote physiological measurement (RPM) is an essential tool for healthcare monitoring as it enables the measurement of physiological signs, e.g., heart rate, in a remote setting via physical wearables. Recently, with facial videos, we have…

Computer Vision and Pattern Recognition · Computer Science 2024-06-21 Hao Wang , Euijoon Ahn , Jinman Kim

Publicly available satellite imagery can be an ubiquitous, cheap, and powerful tool for vehicle localisation when a prior sensor map is unavailable. However, satellite images are not directly comparable to data from ground range sensors…

Robotics · Computer Science 2020-09-24 Tim Y. Tang , Daniele De Martini , Shangzhe Wu , Paul Newman