Results 21 to 30 of about 1,582,214 (165)

Direction-of-Arrival Estimation for Coprime Array Using Compressive Sensing Based Array Interpolation

International Journal of Antennas and Propagation, 2017
A method of direction-of-arrival (DOA) estimation using array interpolation is proposed in this paper to increase the number of resolvable sources and improve the DOA estimation performance for coprime array configuration with holes in its virtual array.
Aihua Liu, Qiang Yang, Xin Zhang, Weibo Deng   +3 more
doaj   +1 more source

Two-Dimensional Separable Gridless Direction-of-Arrival Estimation Based on Finite Rate of Innovation

IEEE Access, 2021
In order to solve the problem that the gridless DOA estimation algorithms based on generalized finite rate of innovation (FRI) signal reconstruction model are not suitable for two-dimensional DOA estimation using planar array, a separable gridless DOA ...
Kunda Wang, Lin Shi, Tao Chen
doaj   +1 more source

Deep Networks for Direction of Arrival Estimation With Sparse Prior in Low SNR

IEEE Access, 2023
This work introduces direction of arrival (DOA) estimation considering the sparsity prior in the low signal to noise ratio (SNR) using deep learning (DL).
Yanhua Qin
doaj   +1 more source

Direction of arrival estimation of unknown emitter by deep neural networks with array imperfections

IET Radar, Sonar & Navigation, 2023
In array signal processing, high‐resolution direction‐of‐arrival (DOA) estimation by eigendecomposition method requires knowledge of the array covariance matrix and an exact characterisation of the array.
Min Chen, Xingpeng Mao, Libao Liu
doaj   +1 more source

Kiai Baidowi Gading dan doa dari langit [PDF]

Dari sebuah rumah sederhana di daerah Gading, sebuah doa telah dilantunkan oleh seorang kiai yang kemudian menjadi cahaya bagi ribuan santri. Namanya KH M Baidowi Muslich, pengasuh Pondok Pesantren Miftahul Huda Gading Malang, Jawa Timur.
Hidayatullah, Achmad Diny
core   +5 more sources

Compressive Sensing for High-Resolution Direction-of-Arrival Estimation via Iterative Optimization on Sensing Matrix

International Journal of Antennas and Propagation, 2015
A novel compressive sensing- (CS-) based direction-of-arrival (DOA) estimation algorithm is proposed to solve the performance degradation of the CS-based DOA estimation in the presence of sensing matrix mismatching. Firstly, a DOA sparse sensing model is
Hongtao Li, Chaoyu Wang, Xiaohua Zhu
doaj   +1 more source

Blind Adaptive Beamforming for a Global Navigation Satellite System Array Receiver Based on Direction Lock Loop

Remote Sensing, 2023
The adaptive beamforming algorithm can realize interference suppression and navigation signal enhancement, and has been widely used. However, achieving high-precision real-time estimation of the direction of arrival (DOA) parameters of navigation signals
Jian Wu, Xiaomei Tang, Long Huang, Shaojie Ni, Feixue Wang   +4 more
doaj   +1 more source

A high-resolution DOA estimation method for deep-sea multipath coherent channels [PDF]

Zhihui kongzhi yu fangzhen
Aiming at the problem of error in deep-sea DOA(Direction of Arrival, DOA) estimation based on plane wave sound field model, this paper establishes the array signal model of deep-sea DOA estimation under multipath channel based on ray theory.
CAO Yongjie, MAO Weining
doaj   +1 more source

DOA Estimation under GNSS Spoofing Attacks Using a Coprime Array: From a Sparse Reconstruction Viewpoint

Remote Sensing, 2022
The antispoofing method using the direction-of-arrival (DOA) feature can effectively improve the application security of the global navigation satellite system (GNSS) receivers.
Yuqing Zhao, Feng Shen, Biqing Qi, Zhen Meng   +3 more
doaj   +1 more source

A Sum-of-Squares and Semidefinite Programming Approach for Maximum Likelihood DOA Estimation

Sensors, 2016
Direction of arrival (DOA) estimation using a uniform linear array (ULA) is a classical problem in array signal processing. In this paper, we focus on DOA estimation based on the maximum likelihood (ML) criterion, transform the estimation problem into a ...
Shu Cai, Quan Zhou, Hongbo Zhu
doaj   +1 more source