Skip to main content
EURASIP Journal on Advances in Signal Processing
Figure 4 | EURASIP Journal on Advances in Signal Processing

Figure 4

From: Resolution-enhanced radar/SAR imaging: an experiment design framework combined with neural network-adapted variational analysis regularization

Figure 4

Simulation results for the first uncertain fractional SAR imaging scenario for the large-scale (1024 × 1024 pixels) test scene and 5% random Gaussian perturbations in the SFO, < ||Δ||2 >/||S||2 = 5 × 10-2. (a) degraded scene image formed applying the MSF method corrupted by composite noise (fractional SAR parameters: range PSF width (at 1/2 from the peak value) κ r = 10 pixels, azimuth PSF width (at 1/2 from the peak value) κ a = 30 pixels, composite SNR μSAR = 10 dB); (b) adaptively despeckled MSF image [8]; (c) image reconstructed applying the locally selective RSF method [5] after 30 performed iterations; (d) image reconstructed with the APES method [6] after 30 performed iterations; (e) image reconstructed applying the POCS-regularized RASF technique [7] after seven performed iterations and (f) image reconstructed applying the NN-fused RSF [5] and the DEDR-VA technique (16) after 7 performed iterations.

Back to article page