Results 261 to 270 of about 21,239 (300)
Some of the next articles are maybe not open access.
A novel direction of arrival estimator
Journal of Electronics (China), 2004A Direction Of Arrival(DOA) estimator based on the signal separation principle is introduced, and one of representative multidimensional estimators is established by introducing Matrix Operator projection signal steering Vector Excision(MOVE) operation.
Chao Shao, Guangyue Lu, Zheng Bao
openaire +1 more source
Direction of arrival estimation by subspace methods
International Conference on Acoustics, Speech, and Signal Processing, 2002It is demonstrated that a Bayesian analysis can be simplified and can lead to a practical direction-of-arrival (DOA) estimator. This estimator is remarkably similar to the MUSIC algorithm, but has a threshold which is significantly lower than that for MUSIC. The reason for this improvement in performance is identified.
openaire +1 more source
Compressive frequency-difference direction-of-arrival estimation
The Journal of the Acoustical Society of America, 2023Direction-of-arrival estimation is difficult for signals spatially undersampled by more than half the wavelength. Frequency-difference beamforming [Abadi, Song, and Dowling (2012). J. Acoust. Soc. Am. 132, 3018–3029] offers an alternative approach to avoid such spatial aliasing by using multifrequency signals and processing them at a lower frequency ...
Jeung-Hoon Lee +2 more
openaire +2 more sources
Sparse Direction-of-Arrival Estimation with Directive Coprime Arrays
2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, 2018This paper proposes a sparse direction of arrival (DOA) estimation method for directive coprime arrays. The complex radiation patterns are extracted using an electromagnetic simulator and then incorporated in the DOA estimation. Three DOA algorithms are compared including Capon, MUSIC, and Lasso based on compressive sensing (CS).
Saleh A. Alawsh +3 more
openaire +1 more source
Direction-of-Arrival Estimation using a Direct-Data Approach
IEEE Transactions on Aerospace and Electronic Systems, 2011This paper presents a direct-data (DD) counterpart to the covariance-based (CB) algorithm for direction-of-arrival (DOA) estimation. The proposed DD-DOA scheme provides reduced computational complexity as compared with other ESPRIT variations, filling in a theoretical gap not covered by previously presented schemes.
Tadeu N. Ferreira +2 more
openaire +1 more source
A combined determination-estimation method for direction of arrival estimation
Signal Processing, 1993zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jinho Choi 0001 +3 more
openaire +2 more sources
Direction of Arrival Estimation with Uniform Planar Array
2017 IEEE 86th Vehicular Technology Conference (VTC-Fall), 2017Analog/digital/hybrid beamformer/receiver designs for mmWave communication have attracted great research attentions including directional of arrival (DOA) estimation. Traditional investigation of smart antennas for wireless communications has primarily focused on uniform linear array (ULA) antennas and there are little attention and literature on other
Lili Wei, Qian (Clara) Li, Geng Wu
openaire +1 more source
Wavelet packets-based direction-of-arrival estimation
2004 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2004Wavelet packets-based MUSIC (WP-MUSIC) is proposed to improve the performance of classical MUSIC in scenarios of closely spaced DOA and low signal-to-noise ratio (SNR). With WP-MUSIC the fullband signal is decomposed into several subbands by wavelet packets, and then MUSIC is applied to each subband.
Yanbo Xue +2 more
openaire +1 more source
Subspace estimators of direction of arrival
Conference Record of the Thirty-Eighth Asilomar Conference on Signals, Systems and Computers, 2004., 2005We consider in this paper a class of techniques for the estimation of the direction of arrival of a narrowband signal. Eigenvectors of a spectral covariance matrix corresponding to a number of the lowest eigenvalues are used to estimate the bearing. It is shown that the estimator has a non-standard asymptotic distribution.
openaire +1 more source
Direction-of-arrival estimation of an amplitude-distorted wavefront
IEEE Transactions on Signal Processing, 2001In a number of array signal processing applications, such as underwater source localization, the propagation medium is not homogeneous, which causes a distortion of the wavefront received by the array. There has been some interest in the direction-of-arrival (DOA) estimation of such distorted wavefronts.
Petre Stoica +2 more
openaire +1 more source