Results 81 to 90 of about 256 (131)

Triple extended coprime array for single‐snapshot DoA estimation

Electronics Letters
The direction‐of‐arrival (DoA) estimation methods based on coprime array (CA) largely rely on having a sufficient number of snapshots. However, under single‐snapshot conditions typical of vehicle‐mounted imaging radar, CA‐based DoA estimation often ...
Tianyao Long, Lei Huang, Qiang Li, Wei Wang   +3 more
doaj   +1 more source

Space-Time Adaptive Processing for Airborne Radars With Space-Time Coprime Sampling Structure

IEEE Access, 2018
Coprime arrays and coprime time samplers have been receiving attractive attention recently due to their advantages of large apertures and achievable degrees of freedom with low cost.
Xiaoye Wang, Zhaocheng Yang, Huiping Huang, Jianjun Huang, Mei Jiang   +4 more
doaj   +1 more source

Direction of arrival estimation with coprime arrays

Estimation de la direction d’arrivée avec les réseaux coprimes L'estimation de la direction d'arrivée (DOA) des sources avec les réseaux coprimes a été beaucoup étudiée grâce à leurs degrés de liberté (DOFs) élévés et leurs meilleures performances d'estimation.
openaire   +2 more sources

Enhanced Array Synthesis and DOA Estimation Exploiting UAV Array with Coprime Frequencies

Drones
The challenge of achieving high-precision direction-of-arrival (DOA) estimation with enhanced degrees of freedom (DOFs) under a limited number of physical array elements remains a critical issue in array signal processing.
Long Zhang, Weijia Cui, Nae Zheng, Song Chen, Yuxi Du   +4 more
doaj   +1 more source

Coherent DOA estimation based on low-rank matrix recovery with coprime arrays in nonuniform noise

EURASIP Journal on Advances in Signal Processing
In this paper, a novel low-rank matrix recovery-based direction of arrival estimation algorithm is proposed for coherent signals with coprime arrays under nonuniform noise conditions.
Youzhen Yang, Jianhui Wang, Zhenyu Wang
doaj   +1 more source

COPRIME ARRAYS WITH ENHANCED DEGREES OF FREEDOM

Anadolu University Journal of Science and Technology-A Applied Sciences and Engineering, 2018
Coprime array geometries provide robust performance for direction-of-arrival estimation problem with more sources than sensor elements. In previous works it is shown that K source directions can be resolved using only 2M + N -1 sensor elements where K is less than or equal to MN.
openaire   +3 more sources

A Hole-free Shifted Coprime Array for DOA Estimation

Journal of Telecommunications and Information Technology
Coprime arrays have recently become a popular trend in estimating the direction of arrival in array signal processing, as they increase the degree of freedom (DOF).
Fatimah Abdulnabi Salman, Bayan Mahdi Sabbar   +1 more
doaj   +1 more source

Sparse Sensing with Semi-Coprime Arrays

, 2018
A semi-coprime array (SCA) interleaves two undersampled uniform linear arrays (ULAs) and a $Q$ element standard ULA. The undersampling factors of the first two arrays are $QM$ and $QN$ respectively where $M$ and $N$ are coprime. The resulting non-uniform linear array is highly sparse.
openaire   +2 more sources

L-shaped coprime array structures for DOA estimation

Multidimensional Systems and Signal Processing, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Off-grid hydroacoustic signal orientation estimation based on interpolation and subspace fitting in coprime arrays.

PLoS ONE
This letter presents a novel approach to sparse Bayesian underwater acoustic signal direction estimation. The proposed method incorporates interpolation of the coprime array and signal subspace fitting.
Chuanxi Xing, Guangzhi Tan, Qiang Meng, Yanling Ran, Mao Lu   +4 more
doaj   +1 more source