Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Josefin, Starkhammar"'
Publikováno v:
JASA express letters. 1(5)
This study evaluates the applicability of scaled reassigned spectrograms (ReSTS) on ultrasound radio frequency data obtained with a clinical linear array ultrasound transducer. The ReSTS's ability to resolve axially closely spaced objects in a phanto
Publikováno v:
Geo-Congress 2022.
Autor:
Rebecca A. Hamilton, Stefanie K. Gazda, Stephanie L. King, Josefin Starkhammar, Richard C. Connor
Publikováno v:
Behavioural processes. 200
A division of labor with role specialization is defined as individuals specializing in a subtask during repetitions of a group task. While this behavior is ubiquitous among humans, there are only four candidates found among non-eusocial mammals: lion
Publikováno v:
The Journal of the Acoustical Society of America. 150(2)
Much can be learned by investigating the click trains of odontocetes, including estimating the number of vocalizing animals and comparing the acoustic behavior of different individuals. Analyzing such information gathered from groups of echolocating
Autor:
Henrik Bjurström, Oskar Tofeldt, Anders Gudmarsson, Josefin Starkhammar, Nils Ryden, Öz Yilmaz
Publikováno v:
Fifth International Conference on Engineering Geophysics, Al Ain, UAE, 21–24 October 2019.
Publikováno v:
The Journal of the Acoustical Society of America. 143:2368-2378
An automatic component detection method for overlapping transient pulses in multi-component signals is presented and evaluated. The recently proposed scaled reassignment technique is shown to have the best achievable resolution for closely located Ga
Publikováno v:
The Journal of the Acoustical Society of America. 145(4)
Dolphin echolocation clicks measured far off-axis contain two time-separated components. Whether these components overlap and appear as a single signal on axis has received little attention. Here, the scaled reassigned spectrogram analysis was used t
Publikováno v:
ICASSP
Previous studies have shown that measurements of beluga whale (Delphinapterus leucas) and bottlenose dolphin (Tur-siops truncatus) echolocation signals at off-axis angles may be well modeled using a Gaussian bell function or a chirped Gaussian functi
Publikováno v:
Construction and Building Materials. 126:508-516
Non-contact surface wave measurements are performed on a new asphalt concrete (AC) pavement using 48 micro-electro-mechanical system (MEMS) sensors as receivers to estimate the real part of the dynamic moduli of the AC top layer. Laboratory measureme
Publikováno v:
EUSIPCO
The reassigned spectrogram can be used to improve the readability of a time-frequency representation of a non-stationary and multi-component signal. However for transient signals the reassignment needs to be adapted in order to achieve good localisat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1abde4746a41909af3a97db7435d7ec6