Results 61 to 70 of about 773,085 (199)

Space Time MUSIC: Consistent Signal Subspace Estimation for Wide-band Sensor Arrays

open access: yes, 2018
Wide-band Direction of Arrival (DOA) estimation with sensor arrays is an essential task in sonar, radar, acoustics, biomedical and multimedia applications.
Di Claudio, Elio D.   +2 more
core   +1 more source

Wide-bandwidth high-resolution search for extraterrestrial intelligence [PDF]

open access: yes
This interim report summarizes the research accomplished during the initial 6-month period of the grant. Activities associated with antenna configurations, the channelizing downconverter, the fast Fourier transform array, the DSP (digital signal ...
Horowitz, Paul
core   +3 more sources

mmWave Massive MIMO with Simple RF and Appropriate DSP

open access: yes, 2017
There is considerable interest in the combined use of millimeter-wave (mmwave) frequencies and arrays of massive numbers of antennas (massive MIMO) for next-generation wireless communications systems.
Mezghani, Amine, Swindlehurst, A. Lee
core   +1 more source

A novel ML DOA estimation algorithm for array signal processing

open access: yesMATEC Web of Conferences, 2018
A novel algorithm for finding the optimal solution of nonlinear function in maximum likelihood DOA estimation is proposed to reduce the calculation in multi-dimensional nonlinear search of the estimation.
Shi Pengfei   +3 more
doaj   +1 more source

A Signal Processor for Gaussian Message Passing

open access: yes, 2014
In this paper, we present a novel signal processing unit built upon the theory of factor graphs, which is able to address a wide range of signal processing algorithms.
Bruderer, Lukas   +5 more
core   +1 more source

Design of Spectrally Compatible Waveforms With Low Auto‐ and Cross‐Correlation‐Weighted Integrated Sidelobe Levels

open access: yesIET Radar, Sonar & Navigation
Low‐correlation sidelobes are critical for spectrally compatible waveforms in multiple‐input multiple‐output (MIMO) radar systems. This study presents a novel algorithm for designing spectrally compatible waveforms for MIMO radar with low auto‐ and cross‐
Zhaobo Jia, Lei Yu, Yinsheng Wei
doaj   +1 more source

SNR Wall Effect Alleviation by Generalized Detector Employed in Cognitive Radio Networks

open access: yesSensors, 2015
The most commonly used spectrum sensing techniques in cognitive radio (CR) networks, such as the energy detector (ED), matched filter (MF), and others, suffer from the noise uncertainty and signal-to-noise ratio (SNR) wall phenomenon.
Modar Safir Shbat, Vyacheslav Tuzlukov
doaj   +1 more source

Application Research of the Sparse Representation of Eigenvector on the PD Positioning in the Transformer Oil

open access: yesInternational Journal of Antennas and Propagation, 2016
The partial discharge (PD) detection of electrical equipment is important for the safe operation of power system. The ultrasonic signal generated by the PD in the oil is a broadband signal.
Qing Xie   +6 more
doaj   +1 more source

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