Results 31 to 40 of about 6,742,308 (298)
Radar Detection-Inspired Signal Retrieval from the Short-Time Fourier Transform
Sensors, 2022 This paper presents a novel adaptive algorithm for multicomponent signal decomposition from the time–frequency (TF) plane using the short-time Fourier transform (STFT).
Karol Abratkiewicz
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Remote Sensing, 2023 Numerous microseismic signals are produced by rock mass fracture during earthquakes, geological disasters, or underground excavations. Moreover, a large amount of noise signals are captured during microseismic signal monitoring.
Chunchi Ma +8 more
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Micro-Doppler Feature Extraction of Rotating Structures of Aircraft Targets with Terahertz Radar
Remote Sensing, 2022 The micro-Doppler features formed by the micro-motion of rotating blades of rotors and turbines are of great significance for aircraft target detection and recognition.
Xiaoyu Qin, Bin Deng, Hongqiang Wang
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Time-frequency analysis of chaotic systems
, 2002 We describe a method for analyzing the phase space structures of Hamiltonian systems. This method is based on a time-frequency decomposition of a trajectory using wavelets.
Chandre, C., Uzer, T., Wiggins, S.
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Analysis of time-frequency scattering transforms
, 2018 In this paper we address the problem of constructing a feature extractor which combines Mallat's scattering transform framework with time-frequency (Gabor) representations. To do this, we introduce a class of frames, called uniform covering frames, which
Czaja, Wojciech, Li, Weilin
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Data-Driven Time-Frequency Analysis [PDF]
, 2012 In this paper, we introduce a new adaptive data analysis method to study trend and instantaneous frequency of nonlinear and non-stationary data.
hou, Thomas Y., Shi, Zuoqiang
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LEAST SQUARES MULTI-WINDOW EVOLUTIONARY SPECTRAL ESTIMATION
Electrica, 2003 We present a multi-window method for obtaining the time-frequency spectrum of non-stationary signals such as speech and music. This method is based on optimal combination of evolutionary spectra that are calculated by using multi-window Gabor expansion ...
Mahmut YALÇIN, Aydın AKAN
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Semi-classical Time-frequency Analysis and Applications
, 2016 This work represents a first systematic attempt to create a common ground for semi-classical and time-frequency analysis. These two different areas combined together provide interesting outcomes in terms of Schr\"odinger type equations.
Cordero, Elena +2 more
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Application of the Hilbert-Huang Transform to the Search for Gravitational Waves [PDF]
, 2007 We present the application of a novel method of time-series analysis, the Hilbert-Huang Transform, to the search for gravitational waves. This algorithm is adaptive and does not impose a basis set on the data, and thus the time-frequency decomposition it
Camp, Jordan B. +2 more
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Time-frequency analysis of extreme-mass-ratio inspiral signals in mock LISA data [PDF]
, 2007 Extreme-mass-ratio inspirals (EMRIs) of ~ 1-10 solar-mass compact objects into ~ million solar-mass massive black holes can serve as excellent probes of strong-field general relativity.
Amaro-Seoane P +19 more
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