Results 71 to 80 of about 2,215 (175)

Two-Dimensional Angle Estimation of Two-Parallel Nested Arrays Based on Sparse Bayesian Estimation

Sensors, 2018
To increase the number of estimable signal sources, two-parallel nested arrays are proposed, which consist of two subarrays with sensors, and can estimate the two-dimensional (2-D) direction of arrival (DOA) of signal sources.
Lu Chen, Daping Bi, Jifei Pan
doaj   +1 more source

Energy Efficient Low-Complexity RIS-Aided 3-D DoA Estimation and Target Tracking Algorithm via Matrix Completion

IEEE Access
In this paper, we propose an algorithm for fast direction-of-arrival (DoA) tracking in reconfigurable intelligent surface aided systems. We reduce the total power consumption by reducing the number of radio-frequency chains in the access point, which ...
Aral Ertug Zorkun, Miguel A. Salas-Natera, Ramon Martinez Rodriguez-Osorio, Symeon Chatzinotas   +3 more
doaj   +1 more source

DOA Estimation Based on Real-Valued Cross Correlation Matrix of Coprime Arrays

Sensors, 2017
A fast direction of arrival (DOA) estimation method using a real-valued cross-correlation matrix (CCM) of coprime subarrays is proposed. Firstly, real-valued CCM with extended aperture is constructed to obtain the signal subspaces corresponding to the ...
Jianfeng Li, Feng Wang, Defu Jiang
doaj   +1 more source

Direction of Arrival (DOA) Estimation in an Array of Antennas using Derivative-Free Methods

International Journal of Computer Applications, 2015
In this paper, direction of arrival estimation has been addressed using derivative free methods and their hybrid procedure in antenna array signal processing. The problem has been formulated in the root mean square error sense by considering the single snapshot.
Junaid Ali Khan, Shahzada Alamgir, Raees M.Asif   +2 more
openaire   +1 more source

Experimental validation of spatial spectrum suppression algorithms for interference sources

Dianzi Jishu Yingyong
In the actual direction finding system, when the weak signal and the strong interference are spatially close, the spatial spectrum direction finding system can only estimate the direction of arrival (DOA) for the strong interference, and the performance ...
Sun Jiabao, Shi Wei, Wang Shenyun
doaj   +1 more source

An Efficient 2-D DOA Estimation for a Cylindrical Conformal Array with Unknown Mutual Coupling

International Journal of Antennas and Propagation, 2018
The limited space of a conformal array may lead to a serious mutual coupling effect, which will significantly affect the performance of direction of arrival (DOA) estimation algorithms.
Chao Liu, Shunian Yin
doaj   +1 more source

Selective Range Iterative Adaptive Approach for High-Resolution DOA Estimation

IEEE Access, 2019
In this paper, the problem of direction-of-arrival (DOA) estimation for a uniform linear array with single-snapshot observations is addressed. Two non-parametric DOA estimators are developed, which can be applied in any azimuth range with one snapshot ...
Yuan Chen, Long-Ting Huang, Hing Cheung So   +2 more
doaj   +1 more source

Direction of Arrival (DOA) Estimation Using Kronecker Subspace [PDF]

Signal and Data Processing, 2018
Sina Majidian, Farzan Haddadi
openaire   +1 more source

On Improvements of Cyclic MUSIC

EURASIP Journal on Advances in Signal Processing, 2005
Many man-made signals encountered in communications exhibit cyclostationarity. By exploiting cyclostationarity, cyclic MUSIC has been shown to be able to separate signals with different cycle frequencies, thus, to be able to perform signal selective ...
Yan Huiqin, Fan H Howard
doaj   +1 more source

DOA estimation based on sparse Bayesian learning with moving synthetic virtual array

Electronics Letters
In scenarios with constrained physical aperture sizes, aiming to enhance the resolution and accuracy of Direction of Arrival (DOA) estimation, this paper proposes a novel approach that integrates a moving synthetic virtual array with Sparse Bayesian ...
Chao Zhu, Zhenmiao Deng
doaj   +1 more source