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Figure 11: Experiments with real ISAR data (II). (a) Radial projections. (b) and its approximation with 40 terms of cosine series. (c) The iteration steps of Nelder-Mead algorithm. (d) The entropy of RD images when searching for range bias of RC. (e) RD image of total 4096 echoes (dB). (f) CBP imaging of Yak-42 (dB).