Results 51 to 60 of about 281 (164)
Generalized L-Shaped Nested Array Concept Based on the Fourth-Order Difference Co-Array
Sensors, 2018 In this paper, a generalized L-shaped nested array based on the fourth-order difference co-array is proposed for two-dimensional (2D) directions’ estimation.
Lei Zhang +4 more
doaj +1 more source
IET Signal Processing, Volume 2026, Issue 1, 2026.To address the issue that the traditional direct position determination (DPD) method for coprime arrays (CAs) has limited performance in scenarios with low signal‐to‐noise ratio (SNR) and small quantity of observation data, a progressive optimization method based on the averaging of redundant data from virtual array elements is proposed. This method is
Hongzhen Wang +4 more
wiley +1 more source
FishMet: A Digital Twin Framework for Appetite, Feeding Decisions and Growth in Salmonid Fish
Aquaculture, Fish and Fisheries, Volume 5, Issue 2, April 2025.ABSTRACT Salmonids are important fish species in aquaculture in countries in the temperate zone. Optimisation of feeding in next‐generation precision fish farming requires developing models for decision support and process control. Black box ML and AI models are often very efficient but have drawbacks, such as requiring large amount of training data ...
Sergey Budaev +2 more
wiley +1 more source
Statistically Efficient Algorithm for DOA Estimation With Sparse Arrays
IEEE AccessSparse arrays can identify $\mathcal {O}(N^{2})$ directions of arrival (DOAs) with $N$ sensors using the difference coarray domain. Coarray-MUSIC relies on eigendecomposition of a Toeplitz matrix formed via ‘direct augmentation’, where ...
Pranav Kulkarni, P. P. Vaidyanathan
doaj +1 more source
Least Squares‐Based Near‐Field Source Localisation With Enhanced Range Estimation
Electronics Letters, Volume 61, Issue 1, January/December 2025.This letter proposes a least squares‐based method for a single near‐field source localisation by jointly estimating bearing angle and range using a uniform linear array. To provide initial estimates in one step, the proposed method uses least squares formulation developed based on the observation that adjacent sensor pairs exhibit far‐field ...
TaeJin Jung, Geunhwan Kim
wiley +1 more source
Geometry of Random Sparse Arrays
, 2023 Funding Information: This work was supported in part by grants ONR N00014-19-1-2256, ONR N00014-19-1-2227 and DE-SC0022165, as well as the Finnish Defense Research Agency and the Ulla Tuominen foundation.
Hücümcnoglu, Mehmet Can +2 more
core +1 more source
A V‐Shaped Fourth‐Order Sparse Array Design for 2‐D Direction of Arrival Estimation
IET Radar, Sonar &Navigation, Volume 19, Issue 1, January/December 2025.A novel planer V‐shaped array for higher DOA estimation accuracy and larger array aperture, which has several experiment to prove it. ABSTRACT Degrees of freedom (DOF) serves as a critical metric for evaluating the design of sparse arrays. Developing novel sparse arrays with enhanced degrees of freedom and mathematically expressible structures ...
Ziwen Chen, Weijia Cui, Bin Ba
wiley +1 more source
Hole Locations and a Filling Method for Coprime Planar Arrays for DOA Estimation
, 2021 International audienceCoprime linear arrays (CLAs) have drawn lots ofattention. Efforts have been made to reveal the hole locations inthe difference coarrays of CLAs, based on which many methodshave been proposed to fill the holes, lengthening the ...
Wang, Yide, Chargé, Pascal, Yang, Xiao
core +1 more source
An Expanding and Shift Scheme for Constructing Fourth-Order Difference Coarrays [PDF]
IEEE Signal Processing Letters, 2017 An expanding and shift (EAS) scheme for efficient fourth-order difference co-array construction is proposed. It consists of two sparse sub-arrays, where one of them is modified and shifted according to the analysis provided. The number of consecutive lags of the proposed structure at the fourth order is consistently larger than two previously proposed ...
Jingjing Cai +3 more
openaire +2 more sources
A Novel Nested Configuration Based on the Difference and Sum Co-Array Concept
Sensors, 2018 Recently, the concept of the difference and sum co-array (DSCa) has attracted much attention in array signal processing due to its high degree of freedom (DOF).
Zhenhong Chen +3 more
doaj +1 more source