Results 51 to 60 of about 773,085 (199)

Assessment of Measurement Distortions in GNSS Antenna Array Space-Time Processing

open access: yesInternational Journal of Antennas and Propagation, 2016
Antenna array processing techniques are studied in GNSS as effective tools to mitigate interference in spatial and spatiotemporal domains. However, without specific considerations, the array processing results in biases and distortions in the cross ...
Thyagaraja Marathe   +2 more
doaj   +1 more source

Combination of the biologically inspired coupled system and high‐frequency surface wave radar at signal level

open access: yesIET Radar, Sonar & Navigation
Virtual aperture extension of small aperture array has attracted wide attention in high‐frequency surface wave radar (HFSWR). A biologically inspired coupled (BIC) system is employed to virtually extend the array aperture.
Hongbo Li   +4 more
doaj   +1 more source

Sensor array signal processing : two decades later [PDF]

open access: yes, 1995
Caption title.Includes bibliographical references (p. 55-65).Supported by Army Research Office. DAAL03-92-G-115 Supported by the Air Force Office of Scientific Research. F49620-92-J-2002 Supported by the National Science Foundation. MIP-9015281 Supported

core  

A two‐stage iterative method for short‐wave source localisation

open access: yesIET Radar, Sonar & Navigation, 2023
Short‐wave source localisation has an important role in many fields. A two‐stage iterative algorithm is proposed based on the ionospheric virtual height (IVH) model using the direction of arrival (DOA) and time difference of arrival (TDOA) measurements ...
Linqiang Jiang   +4 more
doaj   +1 more source

Acousto-optic signal processors for transmission and reception of phased-array antenna signals [PDF]

open access: yes, 1991
Novel acousto-optic processors for control and signal processing in phased-array antennas are presented. These processors can operate in both the antenna transmit and receive modes.
Psaltis, Demetri, Riza, Nabeel A.
core  

Wideband beam domain sparse Bayesian learning passive focusing localisation algorithm

open access: yesIET Radar, Sonar & Navigation
To address the challenges of large‐aperture sonar systems passive localisation, this paper proposes the application of sparse Bayesian learning (SBL) for passive target localisation in the wideband beam domain. The proposed algorithm aims to overcome the
Hao Wang   +3 more
doaj   +1 more source

Array signal processing robust to pointing errors

open access: yes, 2011
The objective of this thesis is to design computationally efficient DOA (direction-of- arrival) estimation algorithms and beamformers robust to pointing errors, by harnessing the antenna geometrical information and received signals.
Zhuang, Jie, Zhuang, Jie
core   +1 more source

Speech Separation Using Partially Asynchronous Microphone Arrays Without Resampling

open access: yes, 2018
We consider the problem of separating speech sources captured by multiple spatially separated devices, each of which has multiple microphones and samples its signals at a slightly different rate.
Corey, Ryan M., Singer, Andrew C.
core   +1 more source

An Under-Sampled Line Array Element Signal Reconstruction Method Based on Compressed Sensing Theory

open access: yesArchives of Acoustics
The half-wavelength spacing arrangement of underwater uniform linear arrays has been widely used for better anti-interference performance and higher signal gain.
Tongjing SUN, Mengwei ZHOU, Lei CHEN
doaj   +1 more source

RFI mitigation with phase-only adaptive beamforming

open access: yes, 2010
Connected radio interferometers are sometimes used in the tied-array mode: signals from antenna elements are coherently added and the sum signal applied to a VLBI backend or pulsar processing machine.
Capon   +14 more
core   +1 more source

Home - About - Disclaimer - Privacy