Optical EngineeringTracking with two frequency-modulated reticles
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A typical reticle tracker includes a single frequency-modulated (FM) reticle to encode target location. This system is not useful for tracking multiple or large targets. A system, using two FM frequency-versus-radius reticles, is presented that allows tracking of these type targets. Results of computer simulations for both the single- and double-reticle tracking systems are presented and their performance is compared and contrasted.