Results 51 to 60 of about 97,244 (184)
Sparse Covariance Matrix Reconstruction‐Based Nulling Broadening for UAV 2D Antenna Arrays
Wireless Communications and Mobile Computing, 2022 Since the antennas on UAVs may have slight vibrations or the interference source is in the state of rapid movement in practice, the interference suppression performance and robustness of the traditional methods may suffer a decline. In this paper, we propose a flexible asymmetric null widening technique, which allows flexible adjustment of the null ...
Chuang Han +3 more
openaire +1 more source
Direction-of-Arrival Estimation Under Array Sensor Failures with ULA
IEEE Access, 2020 In this paper, to address the problem of array sensors failure, we propose a covariance matrix reconstruction method for direction-of-arrival (DOA) estimation.
Bing Sun +4 more
doaj +1 more source
Implicit Density Estimation by Local Moment Matching to Sample from Auto-Encoders [PDF]
, 2012 Recent work suggests that some auto-encoder variants do a good job of capturing the local manifold structure of the unknown data generating density.
Alain, Guillaume +2 more
core
Pinsker estimators for local helioseismology
, 2016 A major goal of helioseismology is the three-dimensional reconstruction of the three velocity components of convective flows in the solar interior from sets of wave travel-time measurements.
Fournier, D. +3 more
core +1 more source
Fast minimum variance wavefront reconstruction for extremely large telescopes [PDF]
, 2010 We present a new algorithm, FRiM (FRactal Iterative Method), aiming at the reconstruction of the optical wavefront from measurements provided by a wavefront sensor.
Béchet +25 more
core +1 more source
International Journal of Antennas and Propagation, 2022 When the array structure of the sparse arrays (SA) cannot be determined, the existing beamforming algorithms designed according to specific formations such as coprime arrays (CA), nested arrays (NA), etc. will fail.
Yuxi Du +4 more
doaj +1 more source
Journal of Marine Science and Engineering, 2023 The self-interference of an unmanned underwater vehicle (UUV) weakens its ability to detect targets of interest. Due to limitations in the size of the sonar array and the complexity of the interference, the performance of existing self-interference ...
Jin Fu +4 more
doaj +1 more source
IEEE Access, 2020 An augmented coprime array systematically employs two sparse subarrays to produce a large-scale difference co-array with attractive merits, such as enhanced degrees of freedom (DOFs) and enlarged array aperture, whereas the interleaved subarrays are ...
Kun Zhang +6 more
doaj +1 more source
Redshift Weights for Baryon Acoustic Oscillations : Application to Mock Galaxy Catalogs [PDF]
, 2016 Large redshift surveys capable of measuring the Baryon Acoustic Oscillation (BAO) signal have proven to be an effective way of measuring the distance-redshift relation in cosmology. Building off the work in Zhu et al.
Padmanabhan, Nikhil +4 more
core +2 more sources
Wiener filter reloaded: fast signal reconstruction without preconditioning
, 2017 We present a high performance solution to the Wiener filtering problem via a formulation that is dual to the recently developed messenger technique.
Lavaux, Guilhem +2 more
core +2 more sources