1998
DOI: 10.1109/7.670330
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Joint time-frequency transform for radar range-Doppler imaging

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Cited by 355 publications
(161 citation statements)
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“…Thus, each time-domain signal along the 256 bursts is rearranged into a (128×64) time-frequency grid. Note that the number of time samples, which is also the number of temporal frames, is not necessary to be the same as the number of bursts because there is little Doppler variation between sufficiently dense time samples [15,16]. In Figure 7, the ISAR images of the point-scatterer set 1 are depicted by applying the STFT and the DGR.…”
Section: Application To Radar Signals From Ideal Point-scatterer Setsmentioning
confidence: 99%
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“…Thus, each time-domain signal along the 256 bursts is rearranged into a (128×64) time-frequency grid. Note that the number of time samples, which is also the number of temporal frames, is not necessary to be the same as the number of bursts because there is little Doppler variation between sufficiently dense time samples [15,16]. In Figure 7, the ISAR images of the point-scatterer set 1 are depicted by applying the STFT and the DGR.…”
Section: Application To Radar Signals From Ideal Point-scatterer Setsmentioning
confidence: 99%
“…The time-varying rotation angle θ(t) is assumed to be Ωt where Ω is the angular speed. The rotation-induced Doppler shift derived from Equation (1) is characterized by the time-varying term Ω 2 t [15,16]. Thus, for a relatively long coherent processing time (CPT) and a fast angular speed, the FT is replaced by the TFT in ISAR imaging.…”
Section: The Radar Signal Model and The Principle Of Tft-based Isar Imentioning
confidence: 99%
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