Results 51 to 60 of about 173,784 (296)
Journal of Field Robotics, EarlyView.ABSTRACT In this study, we tackle the problem of surveilling a large area over the sea without access to the global navigation satellite system (GNSS) while searching for the known target vessel. The system utilizes an unmanned aerial vehicle (UAV) equipped with long‐range radio frequency (LoRa) localization and an RGB camera to detect the target ...
Marijana Peti +10 more
wiley +1 more source
Charge-coupled device data processor for an airborne imaging radar system [PDF]
, 1977 Processing of raw analog echo data from synthetic aperture radar receiver into images on board an airborne radar platform is discussed. Processing is made feasible by utilizing charge-coupled devices (CCD).
Arens, W. E.
core +1 more source
, 2017 Synthetic Aperture RADAR Interferometry (InSAR) provides a unique tool for the quantitative measurement of the Earth’s surface deformations induced by a variety of natural (such as volcanic eruptions, landslides and earthquakes) and anthropogenic (e.g ...
A. Pepe, F. Calò
semanticscholar +1 more source
Prioritized Real‐Time UAV‐Based Vessel Detection for Efficient Maritime Search
Journal of Field Robotics, EarlyView.ABSTRACT Real‐time vessel detection in maritime environments is crucial for diverse applications requiring speed and accuracy. Static camera views often introduce blind spots, compromising detection efficiency. This paper proposes a novel, real‐time UAV‐based system that uses a dynamic camera control strategy to address this limitation.
Lyes Saad Saoud +6 more
wiley +1 more source
Remote SensingThis paper investigates the airborne synthetic aperture radar via outfield experiments based on carrier-free ultra-wideband signals with fifth-order Gaussian pulses with imaging using the backward projection algorithm. Typical blanket jamming is selected
Yue Yuan +4 more
doaj +1 more source
Geomatics, Natural Hazards & Risk, 2019 The Datong basin is one of the complex geologic environments in China. Several faults are distributed in the basin, and a number of hidden faults have been discovered within the basin. Ground fissures (GFs) and land subsidence occur in this region.
Chengsheng Yang +5 more
doaj +1 more source
Theory and measure of certain image norms in SAR [PDF]
, 1984 The principal properties of synthetic aperture radar SAR imagery of point and distributed objects are summarized. Against this background, the response of a SAR (Synthetic Aperture Radar) to the moving surface of the sea is considered.
Raney, R. K.
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Advancing the mapping of vegetation structure in savannas using Sentinel‐1 imagery
Remote Sensing in Ecology and Conservation, EarlyView.As vegetation structure monitoring is important for the understanding and conservation of savanna ecosystems, we explored the utility of C‐band synthetic aperture radar imagery for mapping both grassland and woody vegetation structure in the Greater Serengeti‐Mara Ecosystem.
Vera Thijssen +3 more
wiley +1 more source
Distributed Aperture Coherence-synthetic Radar Technology
Leida xuebao, 2017 The distributed aperture coherence-synthetic radar could accomplish long-range and high-precision detection performance according to include multi-unit radars and energy synthesize in space.
Lu Yaobing, Gao Hongwei, Zhou Baoliang
doaj +1 more source
Remote Sensing in Ecology and Conservation, EarlyView.The abundance of herbaceous vegetation in grassy ecosystems—which cover >25% of the world's land surface—is highly variable and impacts key ecological processes including carbon sequestration and support for grazing wildlife and livestock. Here, we present a method for using high‐resolution, UAV‐borne Light Detection and Ranging (LiDAR) to estimate ...
Tyler C. Coverdale +3 more
wiley +1 more source