A Study of the Feasibility of Using 35 GHz and/or 94 GHz as a Means of Improving Low Angle Tracking Capability

Abstract

Security Classification DOCUMENT CONTROL DATA R&D {Security classification ol title, body ol abstract and indexing annotation muxt 5c entered when the ovvrall report in rfa&si/icdj l ORIGINATING * C Ti vi T v {Corporate author)

Sources of Tracking Error in Millimeter Wavelength Missile Guidance Systems.

“…This spectral density cu(h) is usually taken to be a triangular function with maximum cu0 at zero frequency and a cut-off frequency f g given by 2 w L f ~~~~~~ (18) g A where w~ is the rate of change of target aspect and L is a length characteristic of the largest target dimension. Alternately w may be taken to be a Markoffian Spectra using the values for f3.…”

“…Lind gives a more precise method of estimating the glint reduction for a given frequency agili ty!9 We assume that the frequency is varied on a pulse to pulse basis and that the 'rhen the total gli nt power is = L/6'rr (26) and the zero frequency glint spectral density of a fixed frequency radar is given by = n 2 /f g (27) where f 5 is the characteristic glint frequency from E quation ( 18).…”