1. A method comprising: a) splitting a laser temporally-modulated waveform of bandwidth B and duration D from a laser source into a reference beam and a target beam; b) directing the target beam onto a target; c) collecting first data that indicates amplitude and phase of light relative to the reference beam received at each of a plurality of different times during a duration D at each optical detector of an array of one or more optical detectors in a plane perpendicular to the target beam; d) repeating steps a, b and c for a plurality of sampling conditions; e) synthesizing the first data for the plurality of sampling conditions to form one or more synthesized sets; f) performing a 3D Fourier transform of each synthesized set to form a digital model of the target for each synthesized set with a down-range resolution based on the bandwidth B; and g) operating a display device based at least in part on at least a portion of the digital model of the target for at least one synthesized set.