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Demonstrating Interoperability Between Unmanned Ground Systems and Command and Control Systems
(2021-05-25)
This paper describes the research and experiment efforts of
the NATO STO group IST-149-RTG capability concept demonstrator for
interoperability within unmanned ground systems and C2 and the NAAG
team of experts on UGV. ...
Infrastructure monitoring using SAR and multispectral multitemporal images.
(2020-09-20)
The main objective of this study is to investigate suitable approaches to monitor the land infrastructure growth over a
period of time using multimodality of remote sensing satellite images. Bi-temporal change detection ...
Spectral reflectance and transmission properties of a multi-layered camouflage net: Comparison with natural birch leaves and mathematical models
(2020-09-20)
With improved specifications and capabilities of modern sensors and detectors, concealment is an increasingly challenging endeavor. Concealment from modern sensors requires advanced camouflage material that can provide low ...
Particle-resolved simulations of shock-induced flow through particle clouds at different Reynolds numbers
(2020-01-27)
This study investigates the Reynolds-number dependence of shock-induced flow through stationary particle clouds at 10% volume fraction, using ensemble-averaged results from three-dimensional particle-resolved large eddy ...
Three-dimensional signal decomposition of infrared image sequences and large-scale non-uniformity analysis
(2020-09-20)
The three-dimensional noise model is a methodology to analyse the noise of a thermal imaging sensor, such as an infrared (IR) camera. This allows us to decompose a noisy signal into components and quantify properties such ...
In-operation calibration of clock-bias and intrinsic parameters for pan-tilt-zoom cameras based on keypoint tracking
(2020-09-20)
We propose a method for jointly estimating intrinsic calibration and internal clock synchronisation for a pantilt- zoom (PTZ) camera using only data that can be acquired in the field during normal operation. Results show ...
Detection: how many pixels are required?
(2020-09-23)
In this work, we studied how detection range of a small target changes as a function of the number of defined target pixels. The intuitively simplest method to look for a target in IR images is to look for the “hottest” ...
Weeping in Modern Jihadi Groups
(2020-09-14)
This article, using a wide range of primary sources, describes the practice of weeping (bukā) in contemporary jihadi groups. It shows that weeping is widespread and encouraged in militant Islamist groups such as al-Qaida ...
Radar imager for Mars’ subsurface experiment—RIMFAX
(2020-11-03)
The Radar Imager for Mars’ Subsurface Experiment (RIMFAX) is a Ground Penetrating Radar on the Mars 2020 mission’s Perseverance rover, which is planned to land near a deltaic landform in Jezero crater. RIMFAX will add a ...
When the noise goes on: received sound energy predicts sperm whale responses to both intermittent and continuous navy sonar
(2020-04-08)
Anthropogenic noise sources range from intermittent to continuous, with seismic and navy sonar technology moving towards near-continuous transmissions. Continuous active sonar (CAS) may be used at a lower amplitude than ...