Results 31 to 40 of about 281 (164)
DOA Estimation of Completely Polarized Signals by One-Bit Cross-Dipole Arrays
IEEE AccessThe one-bit cross-dipole array employs one-bit quantization to reduce the sampling system overhead while extracting polarization information from electromagnetic signals, thereby lowering the system complexity of the polarization array.
Yu Wang +5 more
doaj +2 more sources
A Nested Array Geometry with Enhanced Degrees of Freedom and Hole-Free Difference Coarray [PDF]
A Nested Array Geometry with Enhanced Degrees of Freedom and Hole-Free Difference CoarrayThis paper presents a new extended nested array geometry with enhanced degrees-of-freedom (DOFs) and a hole-free difference coarray for Direction-of-Arrival (DOA) estimation applications.
Wandale, Steven +3 more
core +1 more source
Sparse Array Design Exploiting the Augmented Conjugate Correlation Statistics for DOA Estimation
IEEE Access, 2020 With the augmentation of the non-zero conjugate correlation statistics of some modulating signals, enlarged degrees of freedom (DOFs) can be achieved with conventional sparse arrays as proposed by many literatures.
Jinyang Song, Feng Shen, Jiajun Shen
doaj +1 more source
IET Radar, Sonar &Navigation, Volume 17, Issue 11, Page 1688-1698, November 2023., 2023 To address the problems of traditional two‐level nested arrays (TTNA) with low degrees of freedom and high mutual coupling, a generalised two‐level nested MIMO radar array with high degrees of freedom and low mutual coupling for the direction of arrival estimation is proposed.
Cong Qin +4 more
wiley +1 more source
Electronics Letters, Volume 59, Issue 17, September 2023., 2023 This letter presents a novel parallel sparse nested array and then proposes a matrix reconstruction‐based method with three steps, to achieve better performance of direction of arrival (DOA) estimation. The spacings between the closest antennas along different axes, are coprime and much greater than half‐wavelength in the proposed array, which ...
Yunlong Yang, Guojun Jiang
wiley +1 more source
Electronics Letters, Volume 59, Issue 15, August 2023., 2023 1. The proposed approach utilizes Toeplitz matrix‐based quadratic reconstruction to address rank deficiency issues and obtain an equivalent virtual covariance matrix with minimal complexity. 2. Results demonstrate that this approach achieves reduced computational complexity while maintaining high estimation performance. Abstract This letter proposes an
Chenghong Zhan +3 more
wiley +1 more source
IET Communications, Volume 17, Issue 6, Page 737-746, April 2023., 2023 Improve Symmetric Flipped Nested Array for Mixed Near‐Field and Far‐Field Non‐Circular Sources Localization. Abstract At present, there are few sparse arrays used in the mixed near‐field (NF) and far‐field (FF) localization based on non‐circular (NC) signals.
Yinsheng Wang +4 more
wiley +1 more source
Correlation Subspaces: Generalizations and Connection to Difference Coarrays
IEEE Transactions on Signal Processing, 2017 Direction-of-arrival (DOA) estimation finds applications in many areas of science and engineering. In these applications, sparse arrays such as minimum redundancy arrays, nested arrays, and coprime arrays can be exploited to resolve $O(N^2)$ uncorrelated sources using $N$ physical sensors. Recently, it has been shown that correlation subspaces
Chun-Lin Liu, P. P. Vaidyanathan
openaire +2 more sources
Direction-of-Arrival Estimation Under Array Sensor Failures with ULA
IEEE Access, 2020 In this paper, to address the problem of array sensors failure, we propose a covariance matrix reconstruction method for direction-of-arrival (DOA) estimation.
Bing Sun +4 more
doaj +1 more source
IET Radar, Sonar &Navigation, Volume 17, Issue 2, Page 337-350, February 2023., 2023 In this study, a novel symmetric sparse array named TSNA is proposed. It is developed to solve the problem of improving the performance of mixed NF and FF signals localisation. Abstract Direction of arrival (DOA) estimation of mixed near‐field (NF) and far‐field (FF) signals is one of the key issues in the study of array signal processing.
Bo Du +4 more
wiley +1 more source