Results 41 to 50 of about 521,871 (286)

Designing Planar Frequency Diverse Arrays in Space-Frequency Domain

, 2022
Abstract Antenna arrays benefit from spatial diversity, which allows controlling the pattern specifications in space. Adding frequency diversity to the arrays initiates opportunity to control the beams in the Space-Time domain. Frequency Diverse Array (FDA) has a Range-Angle dependent pattern; therefore, the array's spatial and time behavior ...
Maryam Hasheminasab, Ahmed Cheldavi, Ahmed Kishk   +2 more
openaire   +1 more source

The Random Frequency Diverse Array: A New Antenna Structure for Uncoupled Direction-Range Indication in Active Sensing

, 2016
In this paper, we propose a new type of array antenna, termed the Random Frequency Diverse Array (RFDA), for an uncoupled indication of target direction and range with low system complexity.
Liu, Yimin, Nehorai, Arye, Ruan, Hang, Wang, Lei   +3 more
core   +1 more source

Statistical Analysis for Time Modulation-Based Frequency Diverse Array Beampattern

IEEE Access, 2019
Frequency diverse array (FDA) has received much attention due to its both range- and angle-dependent beampatterns. However, the range-angle coupling and time-variant beampattern in FDA may affect its applicability.
Hui Chen, Wen-Qin Wang, Yan-Shuo Cui, Yi Liao   +3 more
doaj   +1 more source

Deep-coverage whole genome sequences and blood lipids among 16,324 individuals. [PDF]

, 2018
Large-scale deep-coverage whole-genome sequencing (WGS) is now feasible and offers potential advantages for locus discovery. We perform WGS in 16,324 participants from four ancestries at mean depth >29X and analyze genotypes with four quantitative ...
Abecasis, Goncalo, Alver, Maris, Bloom, Jonathan M, Chaffin, Mark, Correa, Adolfo, Cupples, L Adrienne, Engreitz, Jesse M, Ernst, Jason, Esko, Tonu, Ganna, Andrea, Johnson, W Craig, Kathiresan, Sekar, Kellis, Manolis, Khera, Amit V, Lander, Eric S, Manichaikul, Ani, Mitchell, Braxton, Montasser, May, Natarajan, Pradeep, Neale, Benjamin M, NHLBI TOPMed Lipids Working Group, O'Connell, Jeffrey R, Peloso, Gina M, Perry, James A, Poterba, Timothy, Rich, Stephen S, Ripatti, Samuli, Rotter, Jerome I, Ruotsalainen, Sanni E, Salomaa, Veikko, Seed, Cotton, Surakka, Ida L, Vasan, Ramachandran S, Willer, Cristen J, Wilson, James G, Zekavat, Seyedeh Maryam, Zhou, Wei   +36 more
core   +2 more sources

Frequency Diverse Array Super-Resolution Design With Element Locator Polynomial Rooting Approach

IEEE Access, 2023
Unlike traditional phased-array only generating angle-dependent beampattern, the relatively new frequency diverse array (FDA) produces an angle-range-dependent transmit beampattern that can provide many new applications.
Wen-Qin Wang
doaj   +1 more source

Frequency Increment Design Method of MR-FDA-MIMO Radar for Interference Suppression

Remote Sensing, 2023
In the present complex electromagnetic environment, radar target detection is threatened by different kinds of interferences, especially mainlobe deceptive interference, which occupies the same energy distributions of targets spatially, meaning that ...
Zhixia Wu, Shengqi Zhu, Jingwei Xu, Lan Lan, Ximin Li, Yiqun Zhang   +5 more
doaj   +1 more source

Advances on Frequency Diverse Array Radar and Its Applications

Leida xuebao, 2018
Unlike the conventional phased array that provides only angle-dependent transmit beampattern, Frequency Diverse Array (FDA) employs a small frequency increment across its array elements to produce automatic beam scanning without requiring phase shifters ...
Wang Wenqin, Chen Hui, Zheng Zhi, Zhang Shunsheng   +3 more
doaj   +1 more source

Ethnic Differences in the Association Between SOD2 rs4880 and Hepatotoxicity in Pediatric Acute Lymphoblastic Leukemia: A Report From the REDIAL Consortium

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Treatment‐associated hepatotoxicity (TAH) is a common complication of pediatric acute lymphoblastic leukemia (ALL) treatment, but genetic risk factors remain poorly understood. We evaluated the SOD2 rs4880 variant in 544 children with ALL at Texas Children's Hospital. After adjusting for demographic and clinical covariates, the rs4880 C allele
Emily J. Mason, John P. Woodhouse, Joanna S. Yi, M. Monica Gramatges, Olga A. Taylor, Veronica A. Morales, Shalini Dhamodharan, Marley Roberts, Karen R. Rabin, Philip J. Lupo, Michael E. Scheurer, Van Huynh, Steven D. Mittelman, Etan Orgel, Austin L. Brown   +14 more
wiley   +1 more source

Joint Sparsity-Based Range-Angle-Dependent Beampattern Synthesis for Frequency Diverse Array

IEEE Access, 2017
For frequency diverse array (FDA) range-angle-dependent beampattern synthesis, the objective is to obtain the desired beampattern performance using fewer antenna elements or smaller aperture.
Hui Chen, Huai-Zong Shao, Wen-Qin Wang
doaj   +1 more source

Mixed targets localization using symmetric nested frequency diverse array radar

IET Signal Processing, 2021
A mixed near‐field and far‐field targets localization method based on sparse signal reconstruction and subspace method is presented, which can obtain both direction‐of‐arrival (DOA) and range information of the targets by utilizing symmetric nested ...
Hui Chen, Wen‐Qin Wang, Wei Wang
doaj   +1 more source