Results 61 to 70 of about 83,591 (207)
Sensors, 2017 Multichannel synthetic aperture radar (SAR) is a breakthrough given the inherent limitation between high-resolution and wide-swath (HRWS) faced with conventional SAR.
Tingting Jin +3 more
doaj +1 more source
Quarterly Journal of the Royal Meteorological Society, EarlyView.This study evaluates the subseasonal predictive skill of tropical–extratropical cloud bands across four subtropical convergence zones in ECMWF reforecasts (2003–2022). Results show that, while exact daily predictions are limited to one week, accounting for temporal displacement improves forecast skill significantly, revealing a systematic early onset ...
Romain Pilon, Daniela I.V. Domeisen
wiley +1 more source
Small Methods, EarlyView.Nanopore technology has revolutionized single‐molecule sensing, yet it suffers from an inherent interpretive challenge. Molecular dynamics has emerged as a go‐to method for determining the relationship between the structure of translocating molecules and the nanopore current signals.
Behzad Mehrafrooz +5 more
wiley +1 more source
Azimuth ambiguities in broadside and squint mode synthetic aperture sonar
, 1999 Synthetic aperture sonar (SAS) mapping rates are limited by acoustic propagation speed in relation to feasible platform velocity and the desired swath coverage.
McHugh, R., Shaw, S., Taylor, N.
core +1 more source
Azimuth Phase Coding for Range Ambiguity Suppression in SAR [PDF]
, 2004 A novel ambiguity suppression technique is proposed. Range ambiguities in synthetic aperture radar (SAR) images are eliminated with an azimuth filter after having applied an azimuth phase modulation to the transmitted pulses and a corresponding ...
Kusk, Anders, Dall, Jørgen
core +1 more source
FMCW SAR Sparse Imaging Based on Approximated Observation: An Overview on Current Technologies
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020 Sparsity-driven synthetic aperture radar (SAR) imaging technique for frequency modulation continuous wave (FMCW) has already shown the superiority in terms of performance improvement in imaging and recovery from down-sampled data.
Hui Bi +5 more
doaj +1 more source
Methods in Ecology and Evolution, EarlyView.Abstract Tree crowns are complex, three‐dimensional structures whose morphology varies among species, individuals and environments. Although light detection and ranging (LiDAR) provides high‐resolution, single‐tree point clouds that advance species discrimination and the assessment of intraspecific variation in situ, crown shape is still commonly ...
Ladislav Hodač +5 more
wiley +1 more source
WAH‐i: Optimising microphone array geometry for customised localisation accuracy
Methods in Ecology and Evolution, EarlyView.Abstract Accurate spatial localisation of free‐flying echolocating bats is foundational for resolving fine‐scale flight and echolocation behaviour, prey interception and spatial decision‐making in natural environments. Acoustic localisation using microphone arrays is widely employed for this purpose, yet array geometries in field studies are typically ...
Ravi Umadi
wiley +1 more source
Detection and Mitigation of Strong Azimuth Ambiguities in High Resolution SAR Images [PDF]
, 2016 Azimuth ambiguities of bright point-like targets become more pronounced in case of high resolution SAR imaging. When improving the spatial resolution, the compression gain in SAR image formation becomes larger, which increases the dynamic range of SAR ...
Jäger, Marc, Scheiber, Rolf
core
Sensors, 2019 This paper focuses on an improved imaging algorithm for spotlight synthetic aperture radar (SAR) with continuous Pulse Repetition Interval (PRI) variation in extremely high-resolution.
Shiyang Chen +4 more
doaj +1 more source