Results 231 to 240 of about 166,061,941 (270)

A unitary transformation method for angle-of-arrival estimation

IEEE Transactions on Signal Processing, 1991
Eigenstructure methods for estimating angles of arrival of radiation sources generally require complex computations in computing eigencomponents of the covariance matrix and calculating the search function. A unitary transformation method that transforms the complex covariance matrix of an equally spaced linear array, which is Hermitian persymmetric ...
Keh-Chiarng Huarng, Chien-Chung Yeh
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Angle-of-arrival estimation in atmospheric turbulence

The Journal of the Acoustical Society of America, 2005
An angle-of-arrival estimator is derived for acoustic waves that propagate in atmospheric turbulence. The estimator directly accounts for the effects of random fluctuations in the propagation environment. The first and second moments of the sound field, as derived from the theory of wave propagation in a random medium, and realistic atmospheric ...
Sandra Collier, Vladimir Ostashev, D. Keith Wilson   +2 more
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Angle of arrival estimation of on-body channels

2nd European Conference on Antennas and Propagation (EuCAP 2007), 2007
Angle of arrival (AoA) estimation has been performed on five on-body channels, namely belt-to-chest, belt-to-wrist, belt-to-ankle, belt-to-head and belt-to-back. The transmitter was always placed on the belt whilst the receiver was located on the points mentioned above. A quarter wavelength monopole and a switched beam array were used, respectively, as
M.R. Kamarudin, Y.I. Nechayev, P.S. Hall
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An experimental angle of arrival estimation system

[1991] Conference Record of the Twenty-Fifth Asilomar Conference on Signals, Systems & Computers, 2002
The authors describe an experimental hardware system used to estimate the angles of arrival of multiple cochannel emitters. The system consists of a four-element phased array antenna and a personal computer housing four coherentized digital receivers.
R. Lonski, R. Gooch
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An alternative approach for angle of arrival estimation

The 8th European Conference on Antennas and Propagation (EuCAP 2014), 2014
The Multiple Signals Classification (MUSIC) algorithm is the most popular algorithm for estimating the Angle of Arrival (AOA) of the received signals. This algorithm is based on the calculation of thermal noise Eigenvalues and the corresponding Eigen vectors. All researches in this field assumed isotropic sensors to form the array antennas.
Bassim Sayed Mohammed, Noori Hussein Noori   +1 more
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ESPRIT Angles-of-Arrival Estimation with Missing Sensor Data

2019 27th European Signal Processing Conference (EUSIPCO), 2019
This paper describes a procedure for Angles-of-Arrival (AoA) estimation for a uniform linear array (ULA) with missing sensors. The novelty of the approach is that, rather than using AoA estimates obtained from contiguous subarrays, we use estimates for the corresponding signal subspaces.
Langford B. White, Trevor Jackson
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Enhancement of angle of arrival estimation by sparse deconvolution algorithm

2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), 2013
Ray tracing is a technique often used to model indoor and outdoor environments. In order to improve the parameters used in ray tracing, measurements from channel sounding can be employed to test algorithms and build more accurate models of the channel.
Yang, Yi, Hilton, Geoffrey S, Paul, Dominique L   +2 more
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Angle of arrival estimation without EVD for coherent sources

2008 International Conference on Telecommunications, 2008
A novel method is introduced in this paper that estimates direction of arrival (DOA) utilizing coherent and noncoherent signals that are impinging on an array of antenna elements in multipath environment. This algorithm presents several advantages over the classical subspace algorithms such as root MUSIC and ESPRIT with forward/backward spatial ...
Amjad Salameh, Jonathan Bagby
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Online angle of arrival estimation in the presence of mutual coupling

2016 IEEE Statistical Signal Processing Workshop (SSP), 2016
A novel algorithm for estimating the Angles of Arrival (AoA) of multiple sources in the presence of mutual coupling is derived. We first formulate an “Equality Constrained Quadratic Optimisation” problem, then derive a suitable MUSIC-like algorithm to solve the aforementioned problem, and thus obtain good estimates of the AoA parameters ...
Ahmad Bazzi, Dirk T. M. Slock, Lisa Meilhac   +2 more
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Positioning Based on 2-D Angle of Arrival Estimation

2011 IEEE 73rd Vehicular Technology Conference (VTC Spring), 2011
We study the problem of determining the position of a node via the exploitation of 2-D angle of arrival estimation (azimuth and elevation), using orthogonal linear arrays. We also consider the presence of hardware impairments that include RF carrier frequency, phase, and DC offsets.
INSERRA D., TONELLO, Andrea, MORET N.
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