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Table 1 Average running time of imaging algorithms versus different SNRs

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

Time (s) SNR=3 dB SNR=12 dB SNR=21 dB SNR=30 dB
PFA 0.01736 0.01658 0.01564 0.01279
OMP 498.83 459.18 458.61 450.89
CoSaMP 1.1292 1.0759 1.0303 0.9784
Proposed 0.03719 0.03332 0.03135 0.03005