Results 61 to 70 of about 224,819 (313)

Direction of arrival estimation using robust complex Lasso

open access: yes, 2016
The Lasso (Least Absolute Shrinkage and Selection Operator) has been a popular technique for simultaneous linear regression estimation and variable selection.
Ollila, Esa
core   +1 more source

An Overview of Direction-of-Arrival Estimation Methods Using Adaptive Directional Time-Frequency Distributions

open access: yesElectronics, 2022
Direction of arrival (DOA) is one of the essential topics in array signal processing that has many applications in communications, smart antennas, seismology, acoustics, radars, and many more.
Pranav Kumar Eranti, B. Barkana
semanticscholar   +1 more source

Direction of arrival estimation for nanoscale sensor networks [PDF]

open access: yesProceedings of the 5th ACM International Conference on Nanoscale Computing and Communication, 2018
Nanoscale wireless sensor networks (NWSNs) could be within reach soon using graphene-based antennas, which resonate in 0.1-10 terahertz band. To conserve the limited energy available at nanoscale, it is expected that NWSNs will communicate using extremely short pulses on the order of femtoseconds.
Prasad, Shree M.   +2 more
openaire   +2 more sources

Controlling AoA Estimation Errors in Rician Fading via Measurement Quality Classification

open access: yesIEEE Access
Angle of Arrival (AoA) estimation plays a crucial role in modern positioning systems but is often affected by errors in multipath channels. Existing methods typically lack a direct mechanism to assess the quality of the estimates, while full channel ...
Pedro Lemos   +3 more
doaj   +1 more source

Estimation of direction of arrival using information theory [PDF]

open access: yes, 2005
Published ...
Constantinides, AG   +2 more
core   +1 more source

High Resolution Direction-of-Arrival Estimation Using Genetic Algorithm [PDF]

open access: yesEngineering and Technology Journal, 2009
This paper presents an application of a performance analysis of a genetic algorithm GA developed for extraction of the directions of arrival DOA of several signals impinging on uniform linear arrays.
Eyad I. Abbas, Ali Abdul-Elah Noori
doaj   +1 more source

Comparative study for broadband direction of arrival estimation techniques [PDF]

open access: yes, 2012
This paper reviews and compares three different linear algebraic signal subspace techniques for broadband direction of arrival estimation --- (i) the coherent signal subspace approach, (ii) eigenanalysis of the parameterised spatial correlation matrix ...
Alrmah, Mohamed Abubaker   +3 more
core  

Multiple Parameter Estimation With Quantized Channel Output

open access: yes, 2010
We present a general problem formulation for optimal parameter estimation based on quantized observations, with application to antenna array communication and processing (channel estimation, time-of-arrival (TOA) and direction-of-arrival (DOA) estimation)
Antreich, Felix   +2 more
core   +1 more source

Source power estimation for array processing applications under low sample size constraints [PDF]

open access: yes, 2007
Copyright © 2008 IEEE. All Rights Reserved.This paper proposes a new power estimation technique for array processing applications in the low sample size regime.
Abramovich, Yuri   +2 more
core   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

open access: yesFEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo   +2 more
wiley   +1 more source

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