Precision Imaging of Frequency Stepped SAR with Frequency Domain Extracted HRRP and Fast Factorized Back Projection Algorithm

Figure 7

Virtual Data HRRP obtained by FDEM with CZT and SPFT plus real data results comparison with conventional TDM and proposed FDEM.

(a) HRRP of FDEM with CZT

(b) HRRP of FDEM with SPFT

(c) Real Data HRRP with TDM

(d) Real Data HRRP with FDEM