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Comparative Study of Wideband Subspace Direction of Arrival (DOA) estimation methods
The Journal of the Acoustical Society of America, 2008Signal subspace Methods like ESPRIT, MUSIC and MATRIX PENCIL, provides high resolution Direction Of Arrival (DOA) estimation in comparison to traditional Delay and Sum and Capon methods, which are limited by sensor spacing. However underwater Acoustics signals are inherently wideband in nature and most of these Subspace methods works on narrowband ...
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Precision of direction of arrival (DOA) estimation using novel three dimensional array geometries
AEU - International Journal of Electronics and Communications, 2017Abstract Numerous methods for direction of arrival (DOA) estimation, used in smart antennas have been already reported in previous studies. The precision of DOA estimation depends on the choice of the algorithm and the geometrical configuration of the antenna array. In this work, the performance of new geometrical configurations, i.e.
Sarah Poormohammad, Forouhar Farzaneh
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IEEE/ACES International Conference on Wireless Communications and Applied Computational Electromagnetics, 2005., 2005
In this paper we present how we choose the proper number of virtual array elements from the real array for direction of arrival (DOA) estimation using a conformal hemispherical real array and a single snapshot of the data. The number of virtual array is achieved by using singular value decomposition (SVD) of a real array manifold and the concept of the
null Seunghyeon Hwang, T.K. Sarkar
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In this paper we present how we choose the proper number of virtual array elements from the real array for direction of arrival (DOA) estimation using a conformal hemispherical real array and a single snapshot of the data. The number of virtual array is achieved by using singular value decomposition (SVD) of a real array manifold and the concept of the
null Seunghyeon Hwang, T.K. Sarkar
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Single Snapshot Direction of Arrival(DoA) Estimation Using Variant Min-Norm Method
2018 International Conference on Communication and Signal Processing (ICCSP), 2018High resolution algorithms for angle estimation is essential to achieve resolution of targets in radar systems. Major drawback of existing subspace based algorithms is that its performance gets degraded for reduced number of snapshots. When number of snapshot is less than number of sources, resolution offered by subspace based algorithms are very less.
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Comparison of conventional and subspace based algorithms to estimate Direction of Arrival (DOA)
2016 International Conference on Communication and Signal Processing (ICCSP), 2016The Direction of Arrival (DOA) technology and researches are evolving areas in array signal processing. Biomedicine, sonar, radar, seismology, astronomy communication and earthquake widely use this estimation. We receive an incoming wave by sensing an array or a set of arrays, this sensed wave can be processed to derive many related estimation ...
Pooja Gupta, Kumar Aditya, Amlan Datta
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Performance enhancement of aperture antennas used for estimation of Direction of Arrival (DOA)
2014 IEEE Antennas and Propagation Society International Symposium (APSURSI), 2014In this paper, we propose a method based on signal processing techniques to improve the performance of aperture antennas, such as a parabolic reflector, used to estimate the Direction of Arrival (DOA) of a signal. Three signal processing algorithms are investigated, including the correlation method, which is used to make an initial estimate of the ...
Weibo Wang, Xiang Gu, Raj Mittra
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Direction-of-arrival (DOA) estimation in the presence of array signal coupling
2011 8th International Conference on Information, Communications & Signal Processing, 2011Direction-of-arrival (DOA) estimation is an important function in array signal processing. Many DOA estimation algorithms have been proposed catering for different situations and accuracies requirements. Nevertheless, most of these algorithms were designed based on the assumption of using ideal array sensors such as antennas with no interaction between
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Mutual coupling effects correction in microstrip arrays for direction-of-arrival (DOA) estimation
IEE Proceedings - Microwaves, Antennas and Propagation, 2002The presence of mutual coupling severely degrades the performance of an adaptive array. A simple method based on obtaining an N/spl times/N coupling matrix, C, to compensate for the coupling effects in direction-of-arrival (DOA) estimation algorithms is presented.
D. Segovia-Vargas +2 more
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Perfomance Study of Direction of Arrival (DOA) Estimation Algorithms for Linear Array Antenna
2009 International Conference on Signal Processing Systems, 2009This paper presents the performance analysis of five direction of arrival estimation algorithms namely Bartlett, Minimum Variance Distortion less Response (MVDR), Linear Prediction and MUSIC DOA Estimates. We present the description, comparison and the performance and resolution analyses of these algorithms. Sensitivity to various perturbations and the
Ibrahim Abdirahman Haji Adam +1 more
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Direction of Arrival (DoA) Estimation Using Irregular Arrays
2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (USNC-URSI), 2023Sajad Eslamzadeh, Ramakrishna Janaswamy
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