Toward the optimization of passive ground targets in spaceborne laser ranging

A concept for a passive multiple retroreflector target dedicated to high-accuracy laser ranging between an orbiting payload and a planetary surface is described. The target can provide, with certain field of view restrictions, good emulation of an ideal retroreflector. The described design relies on an optimization of each retroreflector in terms of the corrections for velocity aberration needed within its particular field of view, and is highly suited to systems with predictable orbital patterns.