Fig. 3From: Frequency-swept feedback interferometry for noncooperative-target ranging with a stand-off distance of several hundred metersPerformance of the DC-LFI-based compensation method. a Ranging results of an aluminum sheet vibrating at 1Â Hz, 10Â Hz, 100Â Hz, and 1Â kHz with and without compensation. The right column shows the magnified details of the gray-marked parts in the left column. b The OPL derived by DC-LFI corresponding to the 1Â kHz vibration. c The frequency spectrum of (b). d Ranging results with a 162.1Â m stand-off distance. e The OPL drift recorded by DC-LFI during ranging corresponding to (b)Back to article page