Results 11 to 20 of about 658,829 (304)

A Partition Spatial Filtering Method for Acoustic Array Configuration

open access: yesShock and Vibration, 2021
Acoustic array is a ubiquitous tool for locating and quantifying sound sources. However, its effectiveness depends greatly on the array configuration.
Zhihong Liu   +4 more
doaj   +1 more source

A New Nested Array Configuration With Increased Degrees of Freedom

open access: yesIEEE Access, 2018
In this paper, a new linear array configuration based on the concept of two-level nested array is proposed. Specifically, the proposed array configuration consists of two uniform linear arrays (ULAs) plus a separate sensor with appropriate spacing apart.
Huiping Huang   +4 more
doaj   +1 more source

Concentric circles and spiral configurations for large correlator arrays in radio astronomy [PDF]

open access: yes, 2018
Aperture synthesis arrays are commonly used in radio astronomy to take images of radio point sources, with the planned Square Kilometre Array (SKA) being the most common example.
Abidin, Zamri Zainal   +6 more
core   +2 more sources

Optimized Multi-Level Prime Array Configurations [PDF]

open access: yes2021 International Symposium on Networks, Computers and Communications (ISNCC), 2021
Antenna arrays have many applications in direction-of-arrival (DOA) estimation. Sparse arrays such as nested arrays, super nested arrays, and coprime arrays have large degrees of freedom (DOFs). They can estimate large number of sources greater than the number of elements.
Alawsh, Saleh A., Muqaibel, Ali H.
openaire   +2 more sources

Testing for the programming circuit of LUT-based FPGAs [PDF]

open access: yes, 1997
The programming circuit of look-up table based FPGAs consists of two shift registers, a control circuit and a configuration memory (SRAM) cell array. Because the configuration memory cell array can be easily tested by conventional test methods for RAMs ...
Fujiwara, Hideo   +4 more
core   +1 more source

A new array extension configuration method based on nesting and minimum redundancy

open access: yesIET Radar, Sonar & Navigation, 2023
While the uniform linear array (ULA) is a well‐known array configuration being widely used in various practical application scenarios, it also encounters numerous challenges in the field of direction‐of‐arrival (DOA) estimation.
He Ma   +3 more
doaj   +1 more source

Direction of Arrival Estimation of Generalized Nested Array via Difference–Sum Co-Array

open access: yesSensors, 2023
To address the weakness that the difference co-array (DCA) only enhances the degrees of freedom (DOFs) to a limited extent, a new configuration called the generalized nested array via difference–sum co-array (GNA-DSCA) is proposed for direction of ...
Yule Zhang   +5 more
doaj   +1 more source

An Inclusive Survey on Array Antenna Design for Millimeter-Wave Communications

open access: yesIEEE Access, 2019
The enormous growth of wireless data traffic in recent years has made the millimeter-wave (mm-wave) technology as a good fit for high-speed communication systems. Extensive works are continuing from the device to system, to the radio architecture, to the
Saswati Ghosh, Debarati Sen
doaj   +1 more source

Minimal Energy Configurations of Finite Molecular Arrays [PDF]

open access: yesSymmetry, 2019
In this paper, we consider the problem of characterizing the minimum energy configurations of a finite system of particles interacting between them due to attractive or repulsive forces given by a certain intermolecular potential. We limit ourselves to the cases of three particles arranged in a triangular array and that of four particles in a ...
Negrón-Marrero, Pablo V.   +1 more
openaire   +2 more sources

Analysis of Passive Partial Shading Mitigation Technique for PV Array [PDF]

open access: yesJournal of Renewable Energy and Environment
In the present day, a significant portion of the world's energy demand can be satisfied through the utilization of renewable energy sources. Solar energy, in particular, holds a pivotal position owing to its numerous merits. However, it faces a challenge
Santosh B, Mohamed Ansari M, Kantarao P.
doaj   +1 more source

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