Results 21 to 30 of about 86,640 (310)
International Journal of Aerospace Engineering, 2023 As the interest in probing deep space increases, it is necessary to enhance the autonomous navigation capabilities of the spacecraft. Since traditional navigation methods rely on ground-based radiometric tracking, the vehicle has a significant ...
Qichang Qiang +3 more
doaj +1 more source
The Link Attenuation Model Based on Monte Carlo Simulation for Laser Transmission in Fog Channel
IEEE Photonics Journal, 2020 Free space optical (FSO) systems were usually designed according to the link budget analysis. However, the previous link attenuation estimations for fog channel were not precise.
Siqi Hu +3 more
doaj +1 more source
Applied Sciences, 2023 Infrared (IR) Image preprocessing is aimed at image denoising and enhancement to help with small target detection. According to the sparse representation theory, the IR original image is low rank, and the coefficient shows a sparse character.
Juan Chen +5 more
doaj +1 more source
Absolute Distance Measurement Based on Self-Mixing Interferometry Using Compressed Sensing
Applied Sciences, 2022 An absolute distance measurement sensor based on self-mixing interferometry (SMI) is suitable for application in aerospace due to its small size and light weight.
Li Li +5 more
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Multi-Scale Local Contrast Fusion Based on LOG in Infrared Small Target Detection
Aerospace, 2023 The infrared detector is adopted to track and recognize targets, including missiles and airplanes. These targets are usually far from the detector. The pixel size is less than 9×9 when the image has 256×256 pixels.
Juan Chen +5 more
doaj +1 more source
Measuring microsatellite conservation in mammalian evolution with a phylogenetic birth-death model. [PDF]
, 2012 Microsatellites make up ∼3% of the human genome, and there is increasing evidence that some microsatellites can have important functions and can be conserved by selection.
Buschiazzo, Emmanuel +4 more
core +1 more source
A comparison of SNPs and microsatellites as linkage mapping markers: lessons from the zebra finch (Taeniopygia guttata) [PDF]
, 2010 Background: Genetic linkage maps are essential tools when searching for quantitative trait loci (QTL). To maximize genome coverage and provide an evenly spaced marker distribution a combination of different types of genetic marker are sometimes used.
Ball, A.D. +5 more
core +3 more sources
Rethinking LEO Mega-Constellation Routing to Provide Fast Internet Access Services
Sensors, 2023 In the realm of providing space-based internet access services, utilizing large-scale low Earth orbit (LEO) satellite networks have emerged as a promising solution for bridging the digital divide and connecting previously unconnected regions.
Zijian Yang +3 more
doaj +1 more source
Development and characterization of tri- and tetra-nucleotide polymorphic microsatellite markers for skipjack tuna (Katsuwonus pelamis) [PDF]
, 2012 Skipjack tuna (katsuwonus pelamis) (SJT) is the largest tuna fishery in all the major oceans around the world, and the largest marine fishery in Sri Lanka. Knowledge of genetic population structure and effective population size of SJT in the Indian Ocean
Chand, Vincent +2 more
core +2 more sources
Aerospace, 2023 On-orbit object detection has received extensive attention in the field of artificial intelligence (AI) in space research. Deep-learning-based object-detection algorithms are often computationally intensive and rely on high-performance devices to run ...
Qi Shi +4 more
doaj +1 more source