Results 31 to 40 of about 97,244 (184)

Robust adaptive beamforming method based on desired signal steering vector estimation and interference-Plus-noise covariance matrix reconstruction

The Journal of Engineering, 2019
Here, the authors propose a robust adaptive beamforming method based on desired signal steering vector estimation and interference-plus-noise covariance matrix reconstruction, so as to attenuate the influences of the desired signal steering vector ...
Junsheng Huang, Hongtao Su, Yang Yang
doaj   +1 more source

Paraunitary oversampled filter bank design for channel coding [PDF]

, 2006
Oversampled filter banks (OSFBs) have been considered for channel coding, since their redundancy can be utilised to permit the detection and correction of channel errors.
A Papoulis, C Liu, F Labeau, F Labeau, F Labeau, F Labeau, F Lorenzelli, H Bölcskei, H Bölcskei, J Kliewer, JG McWhirter, M Harteneck, PP Vaidyanathan, PP Vaidyanathan, S Redif, S Weiss, S Weiss, S Weiss, T Esmailian, T Tanaka, W Kellermann, WH Neo, Z Cvetković   +22 more
core   +2 more sources

Reconstruction of the two-dimensional gravitational potential of galaxy clusters from X-ray and Sunyaev-Zel'dovich measurements [PDF]

, 2018
The mass of galaxy clusters is not a direct observable, nonetheless it is commonly used to probe cosmological models. Based on the combination of all main cluster observables, that is, the X-ray emission, the thermal Sunyaev-Zel'dovich (SZ) signal, the ...
Bartelmann, M., Dekel, A., Eckert, D., Huber, K., Hurier, G., Majer, C. L., Meneghetti, M., Merten, J., Meyer, S., Tchernin, C., Zinger, E.   +10 more
core   +2 more sources

Reconstruction of lensing from the cosmic microwave background polarization [PDF]

, 2003
Gravitational lensing of the cosmic microwave background (CMB) polarization field has been recognized as a potentially valuable probe of the cosmological density field.
Hirata, Christopher M., Seljak, Uros
core   +2 more sources

DOA Estimation under GNSS Spoofing Attacks Using a Coprime Array: From a Sparse Reconstruction Viewpoint

Remote Sensing, 2022
The antispoofing method using the direction-of-arrival (DOA) feature can effectively improve the application security of the global navigation satellite system (GNSS) receivers.
Yuqing Zhao, Feng Shen, Biqing Qi, Zhen Meng   +3 more
doaj   +1 more source

Reconstruction with velocities [PDF]

, 2020
Reconstruction is becoming a crucial procedure of galaxy clustering analysis for future spectroscopic redshift surveys to obtain subper cent level measurement of the baryon acoustic oscillation scale.
Ferraro, S, Schaan, E, White, M, Zhu, HM
core   +2 more sources

A Full Loading-Based MVDR Beamforming Method by Backward Correction of the Steering Vector and Reconstruction of the Covariance Matrix

Applied Sciences, 2022
In order to improve the performance of the diagonal loading-based minimum variance distortionless response (MVDR) beamformer, a full loading-based MVDR beamforming method is proposed in this paper. Different from the conventional diagonal loading methods,
Jing Zhou, Changchun Bao
doaj   +1 more source

A perturbative approach to the reconstruction of the eigenvalue spectrum of a normal covariance matrix from a spherically truncated counterpart

, 2019
In this paper we propose a perturbative method for the reconstruction of the covariance matrix of a multinormal distribution, under the assumption that the only available information amounts to the covariance matrix of a spherically truncated counterpart
Abramowitz, Butler, Cavalier, Filippo Palombi, Graham, Horrace, Isserlis, Merkle, Mukerjee, Palombi, Palombi, Ruben, Ruben, Ruben, Ruben, Simona Toti, Tallis, Tallis   +17 more
core   +1 more source

Reciprocity evaluation based adaptive CCM reconstruction in FDD multi-antenna systems

Journal of Information and Intelligence, 2023
In view of the difficulty of obtaining downlink channel state information, partial reciprocity based channel covariance matrix (CCM) reconstruction has attracted a lot of attention in frequency division duplex (FDD) multi-antenna systems. Taking both the
Fangyuan Liao, Yuhan Ruan, Hangyu Zhang, Rui Zhang, Tao Li, Yongzhao Li   +5 more
doaj   +1 more source

Covariance Eigenvector Sparsity for Compression and Denoising

, 2012
Sparsity in the eigenvectors of signal covariance matrices is exploited in this paper for compression and denoising. Dimensionality reduction (DR) and quantization modules present in many practical compression schemes such as transform codecs, are ...
Giannakis, Georgios B., Schizas, Ioannis D.   +1 more
core   +1 more source