Fig. 3From: RANSAC algorithm for instantaneous frequency estimation and reconstruction of frequency-modulated undersampled signalsCubic phase signal—100 trials of the RANSAC procedure without (left column) and with refinement (right column) for cubic various K/N: first row—7.8%; second row—9.4%; third row—12.5%; fourth row—15.6%. Blue line exact IF value; black lines—estimatesBack to article page