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Synthetic aperture radar on geosynchronous orbit (GEOSAR) can realize the continuous image on the larger coverage area in the short revisit period of nearly 24h. However, the problems with the variable velocity along the geosynchronous orbit and the path delay effect for the higher altitude of about 36000km, make the classical imaging methods are not suitable for the signal processing of GEOSAR. Hence,...
As the bispectrum of the symmetric distribution random signals is equal to zero, whereas its trispectrum is not equal to zero, signal or system needs reconstructing from samples of the trispectrum of observation data. DFT algorithm for amplitude and phase reconstruction from trispectrum is proposed based on the bispectrum DFT algorithm. The magnitude and phase of the Fourier transform of a signal...
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