Results 91 to 100 of about 3,485 (183)

DOA Estimation for Underwater Coprime Arrays with Sensor Failure Based on Segmented Array Validation and Multipath Matching Pursuit

Algorithms
Coprime arrays enable enhanced degrees of freedom through the construction of virtual array equivalent signals. However, the presence of large “holes” leads to discontinuous co-arrays, which severely hampers direction-of-arrival (DOA) estimation ...
Xiao Chen, Ying Zhang
doaj   +1 more source

A Direct Localization Method for Coprime Arrays Based on Averaging of Redundant Data of Virtual Array Elements

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, Ding Wang, Jiexin Yin, Fuquan Nie, Jiajia Guo   +4 more
wiley   +1 more source

Off-Grid DOA Estimation Aiding Virtual Extension of Coprime Arrays Exploiting Fourth Order Difference Co-Array With Interpolation

IEEE Access, 2018
In this paper, a novel array structure exploiting coprime arrays is proposed which can be very proficient to determine the number of consecutive lags in proportion with the number of array elements.
Tarek Hasan Al Mahmud, Zhongfu Ye, Kashif Shabir, Rui Zheng, Md. Shohidul Islam   +4 more
doaj   +1 more source

Low-Complexity DOA Estimation Method Based on Joined Coprime Array

Journal of Telecommunications and Information Technology
In this article, the elimination of ambiguity of a joined coprime array has been examined, with a focus on such of its properties as large aperture size and complete degree of freedom (DOF).
Fatimah Salman, Bayan Sabbar
doaj   +1 more source

Direct Position Determination of Non-Circular Sources Based on a Doppler-Extended Aperture With a Moving Coprime Array

IEEE Access, 2018
Direct position determination (DPD) is a new promising technique in wireless location. Compared with conventional two-step localization methods, DPD achieves a higher accuracy by directly estimating the source location without computing the intermediate ...
Yan-Kui Zhang, Hai-Yun Xu, Bin Ba, Da-Ming Wang, Wei Geng   +4 more
doaj   +1 more source

Improving performance of direction-of-arrival estimation using sparse array in passive radar

Journal of Algorithms & Computational Technology, 2020
A method based on sparse array is applied to direction-of-arrival estimation of passive radar in this paper to increase the number of resolvable sources and improve the direction-of-arrival estimation performance for coprime array.
Geng Chen, Bo Tian, Jian Gong, Cunqian Feng   +3 more
doaj   +1 more source

An Enhanced Spatial Smoothing Technique of Coherent DOA Estimation with Moving Coprime Array. [PDF]

Sensors (Basel), 2023
Yang M, Zhang Y, Sun Y, Zhang X.
europepmc   +1 more source

Fast DOA Estimation Algorithms via Positive Incremental Modified Cholesky Decomposition for Augmented Coprime Array Sensors. [PDF]

Sensors (Basel), 2023
Song J, Cao L, Zhao Z, Wang D, Fu C.
europepmc   +1 more source

Computationally Efficient Direction-of-Arrival Estimation Algorithms for a Cubic Coprime Array. [PDF]

Sensors (Basel), 2021
Gong P, Chen X.
europepmc   +1 more source

Joint Estimation Method of DOD and DOA of Bistatic Coprime Array MIMO Radar for Coherent Targets Based on Low-Rank Matrix Reconstruction. [PDF]

Sensors (Basel), 2022
You Z, Hu G, Zhou H, Zheng G.
europepmc   +1 more source