Design considerations for a heterodyne spatial tracking system utilizing pupil plane processing techniques and its advantages over traditional focal plane processing are described. Noise performance bounds, optimal and suboptimal local oscillator distributions, pull-in performance, and applications other than spatial tracking are discussed. Experimental verification of a one-axis closed-loop tracking system is presented.
© 1989 Optical Society of America
Eric A. Swanson, Gary M. Carter, D. Jonathan Bernays, and David M. Hodsdon, "Optical spatial tracking using coherent detection in the pupil plane," Appl. Opt. 28, 3918-3928 (1989)