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Fig. 3 | PhotoniX

Fig. 3

From: Frequency-swept feedback interferometry for noncooperative-target ranging with a stand-off distance of several hundred meters

Fig. 3

Performance of the DC-LFI-based compensation method. a Ranging results of an aluminum sheet vibrating at 1 Hz, 10 Hz, 100 Hz, and 1 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 1 kHz vibration. c The frequency spectrum of (b). d Ranging results with a 162.1 m stand-off distance. e The OPL drift recorded by DC-LFI during ranging corresponding to (b)

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