Results 1 to 10 of about 150,152 (290)

Sampling Trajectories for the Short-Time Fourier Transform [PDF]

open access: yesJournal of Fourier Analysis and Applications, 2022
AbstractWe study the problem of stable reconstruction of the short-time Fourier transform from samples taken from trajectories in $${\mathbb {R}}^2$$ R 2 .
Speckbacher M.
openaire   +5 more sources

Radar Detection-Inspired Signal Retrieval from the Short-Time Fourier Transform [PDF]

open access: yesSensors, 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
doaj   +2 more sources

Recasting the (Synchrosqueezed) Short-Time Fourier Transform as an Instantaneous Spectrum [PDF]

open access: yesEntropy, 2022
In a previous work, we proposed a time-frequency analysis called instantaneous spectral analysis (ISA), which generalizes the notion of the Fourier spectrum and in which instantaneous frequency is utilized to the fullest extent.
Steven Sandoval, Phillip L. De Leon
doaj   +2 more sources

Short-time Fourier transform laser Doppler holography [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2013
We report a demonstration of laser Doppler holography at a sustained acquisition rate of 250 Hz on a 1 Megapixel complementary metal-oxide-semiconductor (CMOS) sensor array and image display at 10 Hz frame rate.
Samson B., Atlan M.
doaj   +1 more source

Fault Detection in DC Microgrids Using Short-Time Fourier Transform

open access: yesEnergies, 2021
Fault detection in microgrids presents a strong technical challenge due to the dynamic operating conditions. Changing the power generation and load impacts the current magnitude and direction, which has an adverse effect on the microgrid protection ...
Ivan Grcić   +2 more
doaj   +1 more source

Advances in the use of the short-time Fourier transform for assessing urban trees’ root systems [PDF]

open access: yes, 2021
Urbanisation often leads to the destruction of green areas in the urban environment. To this extent, urban trees help mitigating its detrimental effects, as well as offering a variety of socioeconomic and environmental benefits.
Zou, Lilong   +4 more
core   +1 more source

Uncertainty principles for the Fourier and the short-time Fourier transforms

open access: yesJournal of Mathematical Physics, 2021
The aim of this paper is to establish a few uncertainty principles for the Fourier and the short-time Fourier transforms. In addition, we discuss an analog of the Donoho–Stark uncertainty principle and provide some estimates for the size of the essential support of the short-time Fourier transform.
openaire   +4 more sources

Radar matched filtering using the fractional fourier transform [PDF]

open access: yes, 2010
-A matched filter is the optimal linear filter for maximizing the signal to noise ratio (SNR) in the presence of additive noise. Matched filters are commonly used in radar systems where the transmitted signal is known and may be used as a replica to be ...
Clemente, Carmine   +5 more
core   +1 more source

Pendeteksian Notasi Gamelan Menggunakan Metode Short Time Fourier Transform

open access: yesSimetris: Jurnal Teknik Mesin, Elektro dan Ilmu Komputer, 2013
ABSTRAK Indonesia memiliki warisan budaya yang sangat banyak. Gamelan merupakan warisan budaya yang perlu dilestarikan. Usaha untuk pelestarian gamelan perlu dilakukan agar musik gamelan jangan sampai punah apalagi diakui negara lain. Notasi musik
Solekhan -
doaj   +1 more source

The Faber–Krahn inequality for the short-time Fourier transform

open access: yesInventiones mathematicae, 2022
AbstractIn this paper we solve an open problem concerning the characterization of those measurable sets $$\Omega \subset {\mathbb {R}}^{2d}$$ Ω ⊂ R 2
Nicola F., Tilli P.
openaire   +3 more sources

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