title: Comparison of continuous and discrete frequency-versus-radius frequency-modulated reticles.
abstract: We present a general expression for the transmission function of the discrete frequency-versus-radius reticle and compare such a reticle with the more common continuous reticle. A discrete form of the frequency-versus-radius reticle has an integer number of chopping cycles on a single radius. The discreteform limits the resolution of the reticle in the radial direction, but this limit is not severe for small-target images. However, since no phase reversal occurs, electronic processing is simplified.
authors: J S
authors: JS
authors: Taylor
authors: R G
authors: RG
authors: Driggers
authors: C E
authors: CE
authors: Halford
authors: J S
authors: JS
authors: Sanders
authors: S T
authors: ST
authors: Griffin
authors: M
authors: M
authors: Wellfare