Results 51 to 60 of about 4,494 (215)

Modified rank sum nonparametric CFAR to combat clutter edge

EURASIP Journal on Advances in Signal Processing, 2023
The classical rank sum (RS) nonparametric constant false alarm rate (CFAR) detector plays an important role in the theoretical study and practical application of radar target detection.
Meng Xiangwei, Meng Yuan
doaj   +1 more source

An Improved Bilateral CFAR Ship Detection Algorithm for SAR Image in Complex Environment

Leida xuebao, 2021
The Bilateral Constant False Alarm Rate (BCFAR) detection algorithm calculates the spatial information of Synthetic Aperture Radar (SAR) image by the Gaussian kernel density estimator, and combines it with the intensity information of image to obtain the
Jiaqiu AI, Zhenxiang CAO, Yuxiang MAO, Zhanghuai WANG, Feifan WANG, Jing JIN   +5 more
doaj   +1 more source

Cryo‐EM structure of ALC1 in an open conformation bound to a PARylated nucleosome

Acta Crystallographica Section D, Volume 82, Issue 6, Page 683-699, June 2026.
Reanalysis of a publicly available cryo‐EM dataset identifies a new conformation of the oncogenic chromatin remodeler ALC1/CHD1L bound to a PARylated nucleosome. This new structure reveals the position of the macro domain in the complex, and may help to understand the large conformational change leading to the activation of ALC1.Nucleosomes are the ...
Hannah R. Bridges, Luka Bacic, Sebastian Deindl, Guillaume Gaullier   +3 more
wiley   +1 more source

Robust Control for the Detection Threshold of CFAR Process in Cluttered Environments

Sensors, 2020
The constant false alarm rate (CFAR) process is essential for target detection in radar systems. Although the detection performance of the CFAR process is normally guaranteed in noise-limited environments, it may be dramatically degraded in clutter ...
Jeong Hoon Shin, Youngjin Choi
doaj   +1 more source

Widespread Variation in Retinochrome Spectral Absorbance Across Scallop Phylogeny

Molecular Ecology, Volume 35, Issue 11, June 2026.
ABSTRACT Vision is a two‐step process, including phototransduction initiated by a retinal‐bound opsin photopigment, and subsequent photopigment regeneration wherein the inactive state is restored. Because retinal isomerization, or changing of the molecular structural conformation, drives the activation of opsin photopigments, the reverse process is a ...
Kyle E. McElroy, Anna K. G. Ward, Jorge A. Audino, Jeanne M. Serb   +3 more
wiley   +1 more source

Evolutionary Stability of the Shark Snout: Geometric Morphometrics of Ventral Facial Openings

Annals of the New York Academy of Sciences, Volume 1560, Issue 1, June 2026.
Landmark‐based geometric morphometrics of 453 shark species reveal that ventral head morphology is conserved across Selachii. Morphospace and ancestral reconstructions support strong phylogenetic control and limited divergence from ancestral conditions.
Stefano Aicardi, Giacomo Rosa, Alessio Longo, Matteo Bozzo, Beatrice Risso, Elisa Damonte, Andrea Amaroli, Simona Candiani, Sara Ferrando   +8 more
wiley   +1 more source

Adaptive processing with signal contaminated training samples [PDF]

, 2013
We consider the adaptive beamforming or adaptive detection problem in the case of signal contaminated training samples, i.e., when the latter may contain a signal-like component.
Bidon, Stéphanie, Besson, Olivier, Olivier Besson, Stéphanie Bidon   +3 more
core   +1 more source

Maternal characteristics associated with ovalbumin concentrations in breast milk

Pediatric Allergy and Immunology, Volume 37, Issue 5, May 2026.
Abstract Background Breast milk ovalbumin concentrations have been measured with considerable inter‐individual variation. Body mass index (BMI) and gestational diabetes mellitus (GDM) in humans, and fish oil supplementation in pigs, have been associated with breast milk protein concentrations.
Sophie A. Hughes, Jessica R. Metcalfe, Sharon L. Perrella, Donna T. Geddes, Debra J. Palmer   +4 more
wiley   +1 more source

Is There a Relationship Between Secondary Metabolites of Leaves and the Growth of Eucalyptus Species?

Physiologia Plantarum, Volume 178, Issue 3, May/June 2026.
ABSTRACT Flavonoids are essential molecules that affect plant growth and development and act as defense mechanisms against biotic and abiotic factors. This study aimed to assess whether the content of flavonoids in different species of Eucalyptus is related to tree growth.
Ana Carina da Silva Cândido Seron, Dthenifer Cordeiro Santana, Izabela Cristina de Oliveira, Larissa Pereira Ribeiro Teodoro, Cid Naudi Silva Campos, Gileno Brito de Azevedo, Rita de Cássia Félix Alvarez, Regimar Garcia dos Santos, Paulo Eduardo Teodoro   +8 more
wiley   +1 more source

Hardware realization of a novel Automatic Censored Cell Averaging CFAR detection algorithm using FPGA

, 2008
In this paper we present hardware realization of a novel Automatic Censored Cell Averaging (ACCA) Constant False Alarm Rate (CFAR) detection algorithm based on Ordered Data Variability (ODV) using Field Programmable Gate Array (FPGA).
Alhowaish, Mj., Alhowaish, M., Alsuwailem, A., Alshebeili, S., Qasim, S.M., Mohd. Alhowaish, Saleh Alshebeili, Syed Manzoor Qasim, Abdullah Alsuwailem   +8 more
core   +1 more source