Results 161 to 170 of about 31,332 (207)
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2013 Fifth International Conference on Computational Intelligence, Communication Systems and Networks, 2013
In this paper we present a Linear Vector Quantization (LVQ) neural network approach to estimate Direction of Arrivals (DOA) of narrowband sources. It is shown that appropriately trained LVQ networks along with a specific postprocessing scheme can successfully be used for DOA estimation purposes. We take advantage of the execution speed of LVQ algorithm
Andre Faye +2 more
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In this paper we present a Linear Vector Quantization (LVQ) neural network approach to estimate Direction of Arrivals (DOA) of narrowband sources. It is shown that appropriately trained LVQ networks along with a specific postprocessing scheme can successfully be used for DOA estimation purposes. We take advantage of the execution speed of LVQ algorithm
Andre Faye +2 more
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2015 IEEE International Conference on Digital Signal Processing (DSP), 2015
This work addresses the problem of direction-of-arrival (DOA) estimation, where true DOAs are not on the sampling grid when sparse signal recovery concept is adopted. To estimate DOAs exploring its sparse property, a basis is usually required. However, off-grid issue persists even when a large basis is constructed.
Hongqing Liu +3 more
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This work addresses the problem of direction-of-arrival (DOA) estimation, where true DOAs are not on the sampling grid when sparse signal recovery concept is adopted. To estimate DOAs exploring its sparse property, a basis is usually required. However, off-grid issue persists even when a large basis is constructed.
Hongqing Liu +3 more
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DOA Estimation Using Compressed Sparse Array
IEEE Transactions on Signal Processing, 2018zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Muran Guo, Yimin D. Zhang, Tao Chen
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Radar Target DOA Estimation: Moving Window VS AML Estimator
2008 IEEE International Conference on Acoustics, Speech and Signal Processing, 2008In this paper we compare two radar target direction-of-arrival (DOA) estimation algorithms, the classical moving window (MW) and the asymptotic maximum likelihood (AML) estimators. The first technique for azimuth DOA estimation exploits multiple detections in the same time-on-target and the second one exploits the fact that the radar antenna mechanical
GRECO, MARIA +3 more
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DOA estimation with hexagonal arrays
Proceedings of the 1998 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '98 (Cat. No.98CH36181), 2002Hexagonal arrays are widely used in practice but have received less attention in the optimum array processing literature. In this paper, we show how unitary ESPRIT can be applied to hexagonal arrays for direction-of-arrival (DOA) estimation. The resulting estimates exhibit good threshold behavior, and are close to the Cramer-Rao bound above threshold ...
null Zhi Tian, H.L. Van Trees
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Rational Arrays for DOA Estimation
ICASSP 2022 - 2022 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2022Linear arrays used in array processing usually have sensor positions r_iλ/2 where λ is the wavelength of the impinging signals and r_i are integers. This paper considers rational arrays, where r_i are rational numbers. In particular, sparse rational arrays such as coprime rational arrays are introduced.
Kulkarni, Pranav, Vaidyanathan, P. P.
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DOA Estimation with Programmable Metasurface
2020 9th Asia-Pacific Conference on Antennas and Propagation (APCAP), 2020A novel direction of arrival (DOA) estimation method based on a single programmable metasurface sensor and compressive sensing is proposed in this paper. In comparison with metasuface-based beam-scanning method, metasurface- based compressive sensing for DOA estimation has superior performance with smaller sampling length. A proof-of-concept experiment
Song Zha +5 more
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Nonparametric if and DOA estimation
Seventh International Symposium on Signal Processing and Its Applications, 2003. Proceedings., 2003A nonparametric algorithm for estimation of instantaneous frequency (IF) and direction-of-arrival (DOA) of wideband FM signals, at the uniform linear array (ULA), is considered. The IF estimation of signals received at the sensor array is performed by using positions of the Wigner distribution (WD) maxima.
I. Djurovic, L. Stankovic
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Broadband beamspace DOA estimation algorithms
Oceans 2003. Celebrating the Past ... Teaming Toward the Future (IEEE Cat. No.03CH37492), 2003Two kinds of broadband beamspace high-resolution DOA estimation algorithms are studied in this paper. The first one is broadband beamspace coherent high-resolution processing method based on constant beamwidth beamformers. In this method, conventional narrowband beamspace high-resolution DOA estimation methods such as beamspace MUSIC can be applied to ...
Y. Yang, C. Wan, null Chao Sun
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2010 International Conference on Computational Intelligence and Software Engineering, 2010
The method of demodulating was brought forward to estimate the direction-of-arrival (DOA) of linear frequency modulated (LFM) signals. First, we measure the original frequencies and LFM rates of the LFM signals, then apply the measured LFM rate to demodulate the array signals respectively, so as to make certain LFM signal a harmonic signal.
Bo Xiong, Xi Zhao, Hua-wen Liu
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The method of demodulating was brought forward to estimate the direction-of-arrival (DOA) of linear frequency modulated (LFM) signals. First, we measure the original frequencies and LFM rates of the LFM signals, then apply the measured LFM rate to demodulate the array signals respectively, so as to make certain LFM signal a harmonic signal.
Bo Xiong, Xi Zhao, Hua-wen Liu
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