Results 101 to 110 of about 3,485 (183)

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

SAR 3D sparse imaging based on CLA

The Journal of Engineering, 2019
A novel method for synthetic aperture radar (SAR) three-dimensional (3D) sparse imaging based on a coprime linear array (CLA) is proposed. To reduce the geometric resolution loss caused by under-sampled sparse SAR, a jointed sparse imaging approach is ...
Bokun Tian, Shunjun Wei, Liwei Dang, Min Yan, Xiaoling Zhang   +4 more
doaj   +1 more source

DOA Estimation of Noncircular Signals for Unfolded Coprime Linear Array: Identifiability, DOF and Algorithm (May 2018)

IEEE Access, 2018
An ambiguity-free direction of arrival (DOA) estimation method is presented for unfolded coprime linear array (UCLA) in this paper to resolve noncircular signals.
Hui Zhai, Xiaofei Zhang, Wang Zheng, Pan Gong   +3 more
doaj   +1 more source

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

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

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

Computational Ghost Imaging Based on Light Source Formed by Coprime Array. [PDF]

Sensors (Basel), 2020
Zhan Y, Liu J, Wang Z, Yu Q.
europepmc   +1 more source

A Sparse-Array Design Method Using Q Uniform Linear Arrays for Direction-of-Arrival Estimation. [PDF]

Sensors (Basel), 2023
Zhang J, Xu H, Ba B, Mei F.
europepmc   +1 more source

A Robust DOA Estimator Based on Compressive Sensing for Coprime Array in the Presence of Miscalibrated Sensors. [PDF]

Sensors (Basel), 2019
Kou J, Li M, Jiang C.
europepmc   +1 more source