Results 41 to 50 of about 357,123 (287)
Multi-Frequency Based Direction-of-Arrival Estimation for 2q-Level Nested Radar & Sonar Arrays
Sensors, 2018 Direction finding is a hot research area in radar and sonar systems. In the case of q ≥ 2, the 2qth-order cumulant based direction of arrival (DOA) estimation algorithm for the 2q-level nested array can achieve high resolution performance.
Hao Zhou +3 more
doaj +1 more source
A Transformed Coprime Array With Reduced Mutual Coupling for DOA Estimation of Non-Circular Signals
IEEE Access, 2021 Recently, the design of sparse linear array for direction of arrival (DOA) estimation of non-circular (NC) signals has attracted great attention because the difference and sum co-array offered by non-circularity increases the aperture of virtual linear ...
Fengtong Mei +4 more
doaj +1 more source
Atomic Norm-Based DOA Estimation with Sum and Difference Co-arrays in Coexistence of Circular and Non-circular Signals [PDF]
Circuits, Systems, and Signal Processing, 2021 Sparse arrays can increase the array aperture and degrees of freedom through the construction of either sum or difference co-arrays or both. In order to exploit the advantages of sparse arrays while estimating directions of arrival (DOAs) of a mixture of circular and non-circular signals, in this paper, a gridless DOA estimation method is proposed by ...
Liping Teng +5 more
openaire +2 more sources
Sparse direction of arrival estimation of co-prime MIMO radar using sparse aperture completion
The Journal of Engineering, 2019 In this study, the authors consider the problem of direction of arrival (DOA) estimation in compressive sensing multiple-input and multiple-output (CS-MIMO) radars with co-prime receive arrays. A sparse aperture completion scheme is proposed to fill the ‘
Yu Tao, Gong Zhang, Jingya Zhang
doaj +1 more source
IEEE Access, 2020 An augmented coprime array systematically employs two sparse subarrays to produce a large-scale difference co-array with attractive merits, such as enhanced degrees of freedom (DOFs) and enlarged array aperture, whereas the interleaved subarrays are ...
Kun Zhang +6 more
doaj +1 more source
ETRI Journal, 2021 Herein, we estimate the direction of arrival (DOA) of non‐Gaussian signals for nested arrays (NAs) by implementing the fourth‐order difference co‐array (FODC) and successive methods.
Changbo Ye +3 more
doaj +1 more source
nodef/extra-array: A collection of functions for working with Arrays [PDF]
, 2023 An array is a collection of values, stored contiguously. Node.js, Web, Files, Docs, Wiki. This package includes comprehensive set of array functions for generating an array, cloning them, querying about them, getting non-negative indices, managing
Sahu, Subhajit
core +1 more source
Generalized and symmetric coprime planar array for direction of arrival estimation
IET Radar, Sonar & Navigation, 2022 Degrees of freedom and mutual coupling are two important factors to determine the ability of direction of arrival (DOA) estimation. Although coprime planar array (CPPA) has less mutual coupling than hourglass array (HA) and ladder array (LA), its ...
Ming Jian Ren +3 more
doaj +1 more source
Fast computation of the nonlocal boundary condition in finite difference parabolic equation radiowave propagation simulations [PDF]
, 2008 Finite difference parabolic equation method (FD-PEM) codes using a nonlocal boundary condition to model radiowave propagation over electrically large domains, require the computation of time consuming spatial convolution integrals. For the first time, we
Mias, Christos
core +1 more source
An optimizing nested MIMO array with hole-free difference coarray [PDF]
, 2018 According to the newly proposed nested MIMO (Multiple-Input Multiple-Input Multiple Output Multiple Array) array design method, we propose to replace the traditional nested array into an optimizing nested array, ie, to optimizing nested MIMO array design.
Buhong Wang +5 more
core +3 more sources