Results 51 to 60 of about 497 (197)
Enhance Degrees of Freedom for Coprime Array Using OptSpace Algorithm
IEEE Access, 2019 Coprime arrays, consisting of two subarrays with a co-prime number of physical sensors, can effectively resolve the direction-of-arrival (DOA) estimation when the number of sources exceeds the sensors. However, the conventional coprime array direction of
Qianpeng Xie, Xiaoyi Pan, Shunping Xiao
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Comparative Analysis of SVM and CNN for Sonar Signal Classification Using Sparse Arrays
IEEE AccessCoprime and nested sparse arrays are two widely researched sparse arrays. These arrays, requiring fewer sensors compared to full uniform linear arrays (ULAs), still have a high number of degrees of freedom.
Showrov Rahman, Kaushallya Adhikari
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Gaussian Signal Detection With Product Arrays
IEEE Access, 2020 The paper specifies the probability density function (PDF) for the detection statistic for a product processor of colinear arrays. The product processor's detection PDF is a scaled product of the detection statistic with modified Bessel functions.
Kaushallya Adhikari, John R. Buck
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International Journal of Mechanical System Dynamics, EarlyView.ABSTRACT This work addresses the challenge of bidirectional trajectory tracking in solar‐powered wheeled mobile robots (WMRs), considering the mechanical structure, actuator‐driver, and power stage subsystems. Notably, this is the first study to explicitly model and control the actuator‐driver subsystem within this context. The proposed solution relies
Benjamin Natanael Santiago‐Nogales +8 more
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IEEE Access, 2020 This paper presents an efficient gridless sparse reconstruction algorithm for the coprime planar array in two-dimensional (2-D) direction-of-arrival (DOA) estimation problem.
Aihong Lu, Yan Guo, Ning Li, Sixing Yang
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2D DOA Estimation Exploiting Vertical Synthetic Planar Arrays
IEEE Access, 2021 In this paper, vertical motions of sparse linear arrays (SLAs) are utilized to generate equivalent synthetic planar arrays for two-dimensional (2D) direction-of-arrival (DOA) estimation.
Guiyu Wang, Zesong Fei, Shiwei Ren
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International Journal of Robust and Nonlinear Control, EarlyView.ABSTRACT In privacy protection of control systems, a trade‐off between control performance and privacy level is often pointed out. Our goal in this paper is to improve this trade‐off by shaping the frequency of noise added for privacy protection when the control objective is to track a reference signal, which is taken as a piece of information whose ...
Rintaro Watanabe +3 more
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IET Radar, Sonar & Navigation, 2022 As we all know, the non‐uniform array is widely used in the mixed near‐field (NF) and far‐field sources localization. The nested array contains a uniform linear array, it is easy to be affected by mutual coupling, so we propose a symmetric thinned ...
Yinsheng Wang +4 more
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Near-Field Localization With Coprime Array
Proceedings of the 30th Annual International Conference on Mobile Computing and NetworkingLarge-aperture coprime arrays (CAs) are expected to achieve higher sensing resolution than conventional dense arrays (DAs), yet with lower hardware and energy cost. However, existing CA far-field localization methods cannot be directly applied to near-field scenarios due to channel model mismatch.
Hongqiang Cheng +2 more
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Maximum number of zeroes of polynomials on weighted projective spaces over a finite field
Bulletin of the London Mathematical Society, Volume 58, Issue 6, June 2026.Abstract We compute the maximum number of rational points at which a homogeneous polynomial can vanish on a weighted projective space over a finite field, provided that the first weight is equal to 1. This solves a conjecture by Aubry, Castryck, Ghorpade, Lachaud, O'Sullivan and Ram, which stated that a Serre‐like bound holds with equality for weighted
Jade Nardi, Rodrigo San‐José
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