Results 21 to 30 of about 1,081,536 (284)

Receiver psychology and the evolution of multicomponent signals

open access: yes
Many animals produce and respond to signals made up of multiple components. For example, many avian sexual displays are highly extravagant combinations of visual and acoustic elements, and are described as being \u27multicomponent\u27.
Rowe C
core   +5 more sources

Autonomous-underwater-vehicle-based marine multicomponent self-potential method: observation scheme and navigational correction [PDF]

open access: yesGeoscientific Instrumentation, Methods and Data Systems, 2021
Marine self-potential (SP) investigation is an effective method to study deep-sea hydrothermal vents and seafloor sulfide deposits. At present, one of the commonly used marine self-potential systems is a towed array of electrodes.
Z. Zhu   +9 more
doaj   +1 more source

Near‐surface seismic properties for elastic wavefield decomposition: Estimates based on multicomponent land and seabed recordings [PDF]

open access: yes, 2003
Accurate knowledge of the seismic material properties in the immediate vicinity of the receivers represents a prerequisite for elastic wavefield decomposition.
Holliger, K.   +3 more
core   +1 more source

Radon spectrogram-based approach for automatic IFs separation

open access: yesEURASIP Journal on Advances in Signal Processing, 2020
The separation of overlapping components is a well-known and difficult problem in multicomponent signals analysis and it is shared by applications dealing with radar, biosonar, seismic, and audio signals.
Vittoria Bruni   +2 more
doaj   +1 more source

Experimental evolution of a pheromone signal

open access: yesEcology and Evolution, 2022
Sexual signals are important in speciation, but understanding their evolution is complex as these signals are often composed of multiple, genetically interdependent components.
Thomas Blankers   +3 more
doaj   +1 more source

Bicomplex Representation and Processing of GNSS Signals

open access: yesNavigation, 2023
Generalized binary offset carrier (BOC) modulations and global navigation satellite system (GNSS) meta-signals require advanced processing algorithms to overcome problems associated with their multi-peaked correlation functions.
Daniele Borio
doaj   +1 more source

On the Decomposition of Multivariate Nonstationary Multicomponent Signals

open access: yesCoRR, 2019
With their ability to handle an increased amount of information, multivariate and multichannel signals can be used to solve problems normally not solvable with signals obtained from a single source. One such problem is the decomposition signals with several components whose domains of support significantly overlap in both the time and the frequency ...
Ljubisa Stankovic   +3 more
openaire   +3 more sources

Analysis of Maneuvering Targets with Complex Motions by Two-Dimensional Product Modified Lv’s Distribution for Quadratic Frequency Modulation Signals

open access: yesSensors, 2017
For targets with complex motion, such as ships fluctuating with oceanic waves and high maneuvering airplanes, azimuth echo signals can be modeled as multicomponent quadratic frequency modulation (QFM) signals after migration compensation and phase ...
Fulong Jing   +4 more
doaj   +1 more source

ISAR Imaging of Rotating Target with Equal Changing Acceleration Based on the Cubic Phase Function

open access: yesEURASIP Journal on Advances in Signal Processing, 2008
When reconstructing the ISAR image of a maneuvering target rotating approximately with the equal changing acceleration, the received signals can be considered as the multicomponent cubic phase signals.
Yi-cheng Jiang, Yong Wang
doaj   +1 more source

A new instantaneous frequency extraction method for nonstationary response signals in civil engineering structures

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2018
Civil engineering structures in essence belong to time-varying and nonlinear structures and the resultant dynamic responses are usually nonstationary signals. A new method is proposed to extract instantaneous frequency of such nonstationary signals.
Jing-Liang Liu   +4 more
doaj   +1 more source

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