Parameters of spinning am reticles

Ronald G. Driggers, Carl E. Halford, Glenn D. Boreman

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

A new method of obtaining amplitude modulation (AM) for determining target location with spinning reticles is presented. The method is based on the use of graded transmission capabilities. The AM spinning reticles previously presented were functions of three parameters: Amplitude vs angle, amplitude vs radius, and phase. This paper presents these parameters along with their capabilities and limitations and shows that multiple parameters can be integrated into a single reticle. It is also shown that AM parameters can be combined with FM parameters in a single reticle. Also, a general equation is developed that relates the AM parameters to a reticle transmission equation.

Original languageEnglish (US)
Pages (from-to)2675-2684
Number of pages10
JournalApplied optics
Volume30
Issue number19
DOIs
StatePublished - Jul 1991
Externally publishedYes

Keywords

  • AM modulation
  • Reticles
  • Tracking devices

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

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