Results 51 to 60 of about 28,176 (205)
Journal of Field Robotics, EarlyView.ABSTRACT This paper presents advanced methodologies for real‐time terrain analysis and mapping in autonomous robotic systems. The focus is on appearance‐based terrain traversability analysis and geometric‐based terrain traceability analysis. In the appearance‐based approach, an enhanced segmentation model using pixel‐based augmentation and 13 unique ...
Semih Beycimen +2 more
wiley +1 more source
Remote Sensing, 2022 In order to study the space-time characteristics of sea clutter, the sea clutter is always measured by the airborne multichannel radar; however, the sea clutter shows the heterogeneity between range gates, which means the space-time covariance matrix’s ...
Jintong Wan +4 more
doaj +1 more source
GPR clutter amplitude processing to detect shallow geological targets [PDF]
, 2018 The analysis of clutter in A-scans produced by energy randomly scattered in some specific geological structures, provides information about changes in the shallow sedimentary geology.
Pérez Gracia, María de la Vega +2 more
core +2 more sources
Journal of Field Robotics, EarlyView.ABSTRACT Personal autonomous vehicles can sense their surrounding environment, plan their route, and drive with little or no involvement of human drivers. Despite the latest technological advancements and the hopeful announcements made by leading entrepreneurs, to date no personal vehicle is approved for road circulation in a “fully” or “semi ...
Xingshuai Dong +13 more
wiley +1 more source
Microwave detection of buried mines using non-contact, synthetic near-field focusing [PDF]
, 2001 Existing ground penetrating radars (GPR) are limited in their 3-D resolution. For the detection of buried land-mines, their performance is also seriously restricted by `clutter'. Previous work by the authors has concentrated on removing these limitations
ADERIN +18 more
core +1 more source
Pitardia resurrected: A new member of subtribe Menthinae (Lamiaceae)
TAXON, EarlyView.Abstract Despite tremendous progress towards clarifying phylogenetic relationships within the mint family (Lamiaceae), uncertainty remains regarding relationships among some major clades as well as the proper placement of some genera. While researching the genus Nepeta, a species from northeastern Morocco, N.
Abdelmonaim Homrani Bakali +3 more
wiley +1 more source
Leida xuebao, 2015 In a high pulse-repetitive-frequency forward-looking radar, the clutter echo is not only severely rangedependent but also range-ambiguous. It is therefore difficult to realize clutter compensation and suppression for conventional Space-Time Adaptive ...
Xu Jing-wei, Liao Gui-sheng
doaj +1 more source
Loanwords and Linguistic Phylogenetics: *pelek̑u‐ ‘axe’ and *(H)a(i̯)g̑‐ ‘goat’1
Transactions of the Philological Society, Volume 123, Issue 1, Page 116-136, March 2025.Abstract This paper assesses the role of borrowings in two different approaches to linguistic phylogenetics: Traditional qualitative analyses of lexemes, and quantitative computational analysis of cognacy. It problematises the assumption that loanwords can be excluded altogether from datasets of lexical cognacy.
Simon Poulsen
wiley +1 more source
Sea Clutter Reduction and Target Enhancement by Neural Networks in a Marine Radar System
Sensors, 2009 The presence of sea clutter in marine radar signals is sometimes not desired. So, efficient radar signal processing techniques are needed to reduce it.
José Carlos Nieto-Borge +3 more
doaj +1 more source
, 2014 In many practical problems it is not necessary to compute the DFT in a perfect manner including some radar problems. In this article a new multiplication free algorithm for approximate computation of the DFT is introduced. All multiplications $(a\times b)
Akbas, Cem Emre +4 more
core +1 more source