Optical Tracking System with Rotating Mirrors

Abstract

This paper is devoted to the analysis of a new optical tracking system with two mirrors rotating reversely to each other and an amplitude-modulated reticle, which are used for separation of azimuth and elevation error signals as well as to improve the transmitted-signal-to-back-ground-noise ratio. The tracking system presented here has no need of a reference wave used to produce the error signals, has no dead zones in the field of view of its optical system and has a narrow bandwidth. Experimental results are shown.