Gear fault diagnosis using an improved Reassigned Smoothed Pseudo Wigner-Ville Distribution
نویسندگان
چکیده
منابع مشابه
seismic attenuation coefficient estimation using smoothed pseudo wigner-ville distribution
elastic energy of seismic wave is lost through propagation into the earth. various factors affect seismic energy. some of them are frequency independent and recovered in processing steps. but other factors such as intrinsic absorption of medium are frequency dependent and cannot be recovered by processing methods. lost energy caused by these factors is called attenuation. there are various meth...
متن کاملISAR Imaging of Moving Targets Based on Reassigned Smoothed Pseudo Wigner-Ville Distribution
High-range resolution inverse synthetic aperture radar (ISAR) imaging is a promising tool for non-cooperative target identification and has attracted wide interest within the scientific and military communities. Most of the existing ISAR algorithms are based on the Fourier transform. However, for long coherent integration time or for fast maneuvering targets, simple Fourier processing without c...
متن کاملDetection of the valvular split within the second heart sound using the reassigned smoothed pseudo Wigner–Ville distribution
BACKGROUND In this paper, we developed a novel algorithm to detect the valvular split between the aortic and pulmonary components in the second heart sound which is a valuable medical information. METHODS The algorithm is based on the Reassigned smoothed pseudo Wigner-Ville distribution which is a modified time-frequency distribution of the Wigner-Ville distribution. A preprocessing amplitude...
متن کاملWide-angle Isar Passive Imaging Using Smoothed Pseudo Wigner-ville Distribution
We are investigating passive radar imaging of aircraft using reflected TV signals. UHF-band ISAR imaging requires wide-angle data to produce good cross-range resolution. We show that direct Fourier reconstruction (DFR) causes degradation of the reconstructed image due to aspect-dependent scattering. We find that a Smoothed Pseudo Wigner-Ville distribution (SPWVD) applied in the cross-range dire...
متن کاملMultistatic passive radar imaging using the smoothed pseudo Wigner-Ville distribution
We investigate passive radar imaging of aircraft using reflected TV signals. We apply a Smoothed Pseudo WignerVille Distribution (SPWVD)-based SAR imaging algorithm to two different scenarios. In the first simulation, multistatic VHF-band dataset generated by Fast Illinois Solver Code (FISC) is used. In the second simulation, a more realistic simulated passive radar dataset is used. A set of in...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Cogent Engineering
سال: 2018
ISSN: 2331-1916
DOI: 10.1080/23311916.2018.1436928