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Table 2 Average running time of imaging algorithms versus different numbers of scatterers (indicated by N s )

From: Multi-linear sparse reconstruction for SAR imaging based on higher-order SVD

Time (s) N s = 20 N s = 50 N s = 100 N s = 150
PFA 0.01716 0.01832 0.02437 0.04121
OMP 519.67 525.62 537.96 568.34
CoSaMP 0.95787 0.96073 0.98114 1.2098
Proposed 0.04519 0.04651 0.04762 0.05133