Results 61 to 70 of about 9,489 (235)

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

Clutter Suppression Performance Analysis of Spaceborne Bistatic Radar Systems Based on a Semiempirical Bistatic Clutter Scattering Coefficient Model

Leida xuebao
Conventional spaceborne monostatic radar systems incur huge engineering costs to achieve small moving-target detection and low anti-interference ability.
Qing LU, Zihao ZOU, Penghui HUANG, Junli CHEN, Peili XI, Yanyang LIU, Xiangcheng WAN, Shuangxi ZHANG   +7 more
doaj   +1 more source

Signal Processing Methods to Improve Ocean Surface Wave Estimation from a High Frequency Surface Wave Radar [PDF]

, 2011
High frequency surface wave radars are operated as a remote sensor to measure ocean surface parameters to ranges exceeding 200-300 km from the coastline.
Wang, Wei
core  

Navigating Contested Spaces: Gendered Interactions in Everyday Entrepreneuring Among Jua Kali Women in Rural Kenya

Gender, Work &Organization, EarlyView.
ABSTRACT This paper examines the daily experiences of Jua Kali women entrepreneurs in Western Kenya, unpacking how gendered power relations are enacted within informal marketplaces and how women entrepreneurs mobilize agency within these structurally and institutionally constrained contexts.
Tabitha Sindani, Cécile Guillaume, Mayra Ruiz‐Castro, Carole Elliott   +3 more
wiley   +1 more source

Range-ambiguous Clutter Suppression for Forward-looking Frequency Diverse Array Space-time Adaptive Processing Radar

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

Multi-phase centre coherent radar sea clutter modelling and simulation

, 2022
S.1359-1366Two-component clutter models are utilised to model and simulate the spatial-temporal characteristics of radar sea clutter backscatter returns from moving airborne platforms.
Cerutti-Maori, D., McDonald, M.
core   +1 more source

Imminent Localized Precipitation Preceded by a Surge in Cloud‐Base Descent and Reflectivity

Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract The nowcasting of localized precipitation (LP) is often limited by insufficient observation of the vertical cloud evolution preceding rainfall. Here we systematically tracked rapid cloud development within 2 hr before LP onset, utilizing cloud data collected in 2024 from the millimeter‐wavelength cloud radar network across China, together with
Zhen Zhang, Jianping Guo, Ning Li, Jianbo Deng, Weilong Deng, Yuping Sun, Yifei Wang, Shuairu Jiang, Liping Zeng, Feng Ma, Tianmeng Chen   +10 more
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, Manuel Rosa-Zurera, Rubén Carrasco-Álvarez, Raúl Vicen-Bueno   +3 more
doaj   +1 more source

Differences in Lightning—Storm Microphysical Relationships in Subtropical South America Versus the Continental U.S. and Their Impact on Model Lightning Parameterizations

Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract Satellite studies have shown that some of the deepest convection with high lightning flash rates occurs downstream of the Andes in subtropical South America (SSA). Using high resolution ground‐based observations in SSA, we explore the relationship between lightning and radar‐inferred storm microphysics.
M. N. Rocque, W. Deierling, K. L. Rasmussen   +2 more
wiley   +1 more source

Improved Clutter Suppression and Detection of Moving Target with a Fully Polarimetric Radar

Remote Sensing
Remote sensing of moving targets, particularly pedestrians on the road, is crucial for advanced driver assistance systems. However, pedestrian detection using the radar system remains an ongoing challenge due to the radar cross section (RCS) of ...
Zhilong Zhao, Zhongkai Wen, Changhu Xue, Zhiying Cui, Xutao Hou, Haibin Zhu, Yaxin Mu, Zongqiang Liu, Zhenghuan Xia, Xin Liu   +9 more
doaj   +1 more source