Fig. 1. Overall RTS modeling process
Fig. 2. Chirplet 1D/2D waveform with different durations and chirp rates
Fig. 3. ISAR image consisting of range profiles
Fig. 4. Range profile modeling performance of different modeling methods
Fig. 5. Modeling of range profiles using proposed chirplet model and scattering center model
Fig. 6. ISAR image reconstructed by chirplets
Fig. 7. ISAR images selectively reconstructed by durations ((a) : short chirplets, (b) : long chirplets)
Fig. 8. ISAR images reconstructed by chirp rate((a) : short/fast chirplets, (b) : short/slow chirplets)
Fig. 9. ISAR images reconstructed by chirp rate((a) : long/fast chirplets, (b) : long/slow chirplets)
Table 1. Mean correlation coefficient and mean computation time of each modeling method
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