Compensation for High-Frequency Vibration of SAR Imaging in the Terahertz Band Based on Linear Chirplet Transform and Empirical Mode Decomposition
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing"
DOI: 10.1109/jstars.2023.3236159
Abstract: SAR in THz band is very important and valuable in the field of radar signal processing, and it is much sensitive to the high-frequency vibration of the platform due to the short wavelength. In this… read more here.
Keywords: high frequency; frequency; based linear; frequency vibration ... See more keywords
Iterative Synchrosqueezing-Based General Linear Chirplet Transform for Time-Frequency Feature Extraction
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Transactions on Instrumentation and Measurement"
DOI: 10.1109/tim.2022.3232090
Abstract: Short-time Fourier transform (STFT)-based methods are widely applied in industrial areas. However, these methods are inadequate to process non-stationary signals under variable operating conditions. An improved general linear chirplet transform method is developed by iteratively… read more here.
Keywords: time frequency; time; general linear; frequency ... See more keywords
Fractional lower order linear chirplet transform and its application to bearing fault analysis
Sign Up to like & getrecommendations! Published in 2022 at "PLoS ONE"
DOI: 10.1371/journal.pone.0276489
Abstract: The amplitude and frequency of the mechanical bearing fault vibration signals vary with time, and which are non-stationary and non-Gaussian process. The fault signals belong to α stable distribution, and the characteristic index 1 <… read more here.
Keywords: linear chirplet; order; fault; chirplet transform ... See more keywords