Results 21 to 30 of about 5,545,221 (295)
Autonomous-underwater-vehicle-based marine multicomponent self-potential method: observation scheme and navigational correction [PDF]
Geoscientific 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
Experimental evolution of a pheromone signal
Ecology 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
Radon spectrogram-based approach for automatic IFs separation
EURASIP 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
Decomposition of Multicomponent Micro-Doppler Signals Based on HHT-AMD
Applied Sciences, 2018 Micro-Doppler signals analysis has been emerging as an important topic in target identification, and relative research has been focusing on features extraction and separation of the radar signals.
Wenchao Li, Gangyao Kuang, Boli Xiong
doaj +1 more source
Bicomplex Representation and Processing of GNSS Signals
Navigation, 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
CoRR, 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 +2 more sources
Sensors, 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
The effect of past condition on a multicomponent sexual signal [PDF]
Proceedings of the Royal Society of London. Series B: Biological Sciences, 2003 Sexual-selection theory predicts that multiple signals may reveal male condition at different stages of life, thus allowing females to make a more reliable assessment of male quality. While the effect of current condition on signal design is well established, few studies have experimentally investigated the effects of past condition.
Scheuber H, Jacot A, Brinkhof MW
openaire +3 more sources
ISAR Imaging of Rotating Target with Equal Changing Acceleration Based on the Cubic Phase Function
EURASIP 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
Journal 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