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. Author manuscript; available in PMC: 2023 Nov 1.
Published in final edited form as: IEEE Trans Terahertz Sci Technol. 2022 Aug 22;12(6):619–632. doi: 10.1109/tthz.2022.3200210

Fig. 10.

Fig. 10.

(a) Normalized representative time domain signals reflected from a flat mirror obtained using ASOPS (blue, Δf = 50 Hz, 20 avg.) and ECOPS (red, fM = 1000 Hz, Δf = ±25 Hz, 20 avg.) methods. (b) Standard deviation of time of arrival (ToA) for all sets of ASOPS and ECOPS acquisitions as a function of measurement time. (c) Fourier transform of the time domain signals in (a) as well as noise measurements in ASOPS (light blue), and ECOPS (light red), acquired with the same parameters. Shaded areas show standard deviation over 100 acquisitions. (d) Maximum dynamic range and (e) maximum usable bandwidth of each set of acquisitions as a function of measurement time.