Results 31 to 40 of about 31,048 (205)
Grid-free compressive beamforming [PDF]
, 2015 The direction-of-arrival (DOA) estimation problem involves the localization of a few sources from a limited number of observations on an array of sensors, thus it can be formulated as a sparse signal reconstruction problem and solved efficiently with ...
Gerstoft, Peter, Xenaki, Angeliki
core +2 more sources
Statistically Efficient Methods for Pitch and DOA Estimation [PDF]
, 2013 Traditionally, direction-of-arrival (DOA) and pitch estimation of multichannel, periodic sources have been considered as two separate problems. Separate estimation may render the task of resolving sources with similar DOA or pitch impossible, and it may ...
Christensen, Mads Græsbøll +2 more
core +2 more sources
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
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 +4 more
doaj +1 more source
A high-resolution DOA estimation method for deep-sea multipath coherent channels [PDF]
Zhihui kongzhi yu fangzhenAiming 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
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 +3 more
doaj +1 more source
DOA estimation exploiting coprime frequencies [PDF]
SPIE Proceedings, 2014 Coprime array, which utilizes a coprime pair of uniform linear subarrays, is an attractive structure to achieve sparse array configurations. Alternatively, effective coprime array configurations can be implemented using a uniform linear array with two coprime sensing frequencies.
Si Qin, Yimin D. Zhang, Moeness G. Amin
openaire +1 more source
Target DoA estimation in passive radar using non-uniform linear arrays and multiple frequency channels [PDF]
, 2018 In this paper we present a robust approach for target direction of arrival (DoA) estimation in passive radar that jointly exploits spatial and frequency diversity. Specifically we refer to a DVB-T based passive radar receiver equipped with a linear array
Cardinali, Roberta +3 more
core +1 more source
A Covariance Matrix Reconstruction Approach for Single Snapshot Direction of Arrival Estimation
Sensors, 2022 Achieving accurate single snapshot direction of arrival (DOA) information significantly improves communication performance. This paper investigates an accurate and high-resolution DOA estimation technique by enabling single snapshot data collection and ...
Murdifi Muhammad +4 more
doaj +1 more source
Array signal processing for maximum likelihood direction-of-arrival estimation [PDF]
, 2013 Emitter Direction-of-Arrival (DOA) estimation is a fundamental problem in a variety of applications including radar, sonar, and wireless communications.
He, B., Li, M., Lu, Y.
core +1 more source