Compensation for High-Frequency Vibration of SAR Imaging in the Terahertz Band Based on Linear Chirplet Transform and Empirical Mode Decomposition
نویسندگان
چکیده
SAR in THz band is very important and valuable the field of radar signal processing, it much sensitive to high-frequency vibration platform due short wavelength. In this article, characterized as a multicomponent SFM signal, parameters estimation method based on linear chirplet transform empirical mode decomposition proposed compensate for errors. This can extract instantaneous frequency received with high precision, focused image be obtained consequently. Results simulated real measured data are provided illustrate effectiveness novel algorithm article.
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ژورنال
عنوان ژورنال: IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
سال: 2023
ISSN: ['2151-1535', '1939-1404']
DOI: https://doi.org/10.1109/jstars.2023.3236159