Accession Number : ADA113152

Title :   Preliminary Laboratory Measurements of the Boss Modulation Transfer Function.

Corporate Author : VISIDYNE INC BURLINGTON MA

Personal Author(s) : Zehnpfennig,T F ; Rappaport,S A

PDF Url : ADA113152

Report Date : 05 Jun 1981

Pagination or Media Count : 32

Abstract : A dual-input radiometer with matched modulation transfer functions is described. The two MTF's are defined by the form of the two entrance pupils, one of which is annular and the other of which is circular. The radiometer switches alternately between the two pupils by means of a set of polarizing components. By detecting only the resulting fluctuations in the image, the lower spatial frequencies in the object scene are suppressed. Preliminary measurements of the suppression characteristics as a function of spatial frequency are presented. (Author)

Descriptors :   *RADIOMETERS, *TRANSFER FUNCTIONS, *INFRARED EQUIPMENT, SUPPRESSION, BACKGROUND RADIATION, CLUTTER, SPATIAL FILTERING, PROTOTYPES, BREADBOARD MODELS, FABRICATION, DUAL MODE, APERTURES

Subject Categories : Test Facilities, Equipment and Methods
      Infrared Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE