Accession Number : AD0163527

Title :   Electron-Optical De-Correlation of Wavefront Distortion due to Atmospheric Scintillation.

Descriptive Note : Patent,

Corporate Author : OFFICE OF THE SECRETARY OF THE ARMY WASHINGTON D C

Personal Author(s) : Miller,Walter E. , Jr

Report Date : 09 FEB 1971

Pagination or Media Count : 4

Abstract : The report describes a device for determining the angular position of a light source wherein light from the source is received by a lens, split into two paths, and detected by quadrant detectors placed before the focal point of the first path and after the focal point of the second path. The out-of-focus image (blur circle) received by one detector is inverted with respect to the image received by the other detector. The blur circles received by the detectors contain variations in intensity due to atmospheric scintillation. By comparing the light intensity received by the quadrants of each detector, the effects due to atmospheric scintillation are canceled, and the true angular position of the light source with respect to the axis of the detectors may be determined. (Modified author abstract)

Descriptors :   (*OPTICAL TRACKING, CORRELATORS), (*CORRELATORS, *PATENTS), SCINTILLATION, ELECTROOPTICS

Subject Categories : Optical Detection and Detectors
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE