Constant speed tip deflection determination using the instantaneous phase of blade tip timing data
Sign Up to like & getrecommendations! Published in 2021 at "Mechanical Systems and Signal Processing"
DOI: 10.1016/j.ymssp.2020.107151
Abstract: Abstract Blade Tip Timing (BTT) is a non-intrusive measurement technique that can be used to estimate the vibration characteristics of rotor blades during turbomachine operation. BTT uses proximity probes mounted into the turbomachine casing to… read more here.
Keywords: rotor; tip deflection; tip timing; blade tip ... See more keywords
Aberrant global and local dynamic properties in schizophrenia with instantaneous phase method based on Hilbert transform.
Sign Up to like & getrecommendations! Published in 2021 at "Psychological medicine"
DOI: 10.1017/s0033291721003895
Abstract: BACKGROUND Emerging functional imaging studies suggest that schizophrenia is associated with aberrant spatiotemporal interaction which may result in aberrant global and local dynamic properties. METHODS We investigated the dynamic functional connectivity (FC) by using instantaneous… read more here.
Keywords: local dynamic; aberrant global; global local; dynamic properties ... See more keywords
Marginal Hilbert spectrum and instantaneous phase difference as total damage indicators in bridges under operational traffic loads
Sign Up to like & getrecommendations! Published in 2021 at "Structure and Infrastructure Engineering"
DOI: 10.1080/15732479.2021.1982994
Abstract: The challenges and future trends in the development of signal processing tools are being widely used for damage identification in bridges. Therefore, it is important to analyse the vibration signal... read more here.
Keywords: phase difference; instantaneous phase; hilbert spectrum; marginal hilbert ... See more keywords
Lightweight and Amplitude-Free Ultrasonic Imaging Using Single-Bit Digitization and Instantaneous Phase Coherence
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control"
DOI: 10.1109/tuffc.2022.3163621
Abstract: In the field of ultrasonic nondestructive testing (NDT), the total focusing method (TFM) and its derivatives are now commercially available on portable devices and are getting more popular within the NDT community. However, its implementation… read more here.
Keywords: amplitude free; phase coherence; coherence; instantaneous phase ... See more keywords
Seismic horizon picking by integrating reflector dip and instantaneous phase attributes
Sign Up to like & getrecommendations! Published in 2020 at "Geophysics"
DOI: 10.1190/geo2018-0303.1
Abstract: Seismic horizons are the compulsory inputs for seismic stratigraphy analysis and 3D reservoir modeling. Manually interpreting horizons on thousands of vertical seismic slices of 3D seismic survey is a time-consuming task. Automatic horizon interpreting algorithms… read more here.
Keywords: horizon; instantaneous phase; reflector dip;
Detection of karst cavity beneath cast-in-place pile using the instantaneous phase difference of two receiver recordings
Sign Up to like & getrecommendations! Published in 2021 at "Geophysics"
DOI: 10.1190/geo2020-0082.1
Abstract: Karst cavities beneath bored cast in situ piles are hazardous to the stability of infrastructure projects. Therefore, it is important to detect karst cavities during the construction of piles. Downward-looking sonar deployed at the bottom… read more here.
Keywords: phase difference; phase; instantaneous phase; cavity ... See more keywords