Accession Number : ADA187580

Title :   Remote Sensing of Atmospheric Crosswinds by Utilizing Speckle-Turbulence Interaction and Optical Heterodyne Detection.

Descriptive Note : Final rept. 1 Jan 86-30 Jun 87,

Corporate Author : OREGON GRADUATE CENTER BEAVERTON DEPT OF APPLIED PHYSICS AND ELECTRICAL ENGIN EERING

Personal Author(s) : Holmes, J F

PDF Url : ADA187580

Report Date : 16 Sep 1987

Pagination or Media Count : 33

Abstract : Speckle-turbulence interaction can be utilized to measure the vector wind in a plane perpendicular to the line of sight from a laser transmitter to a target. A continuous wave source of around one watt and operating at 10.6 microns, in conjunction with an optical heterodyne receiver, has been used to measure atmospheric winds along horizontal paths. A theoretical basis, the experimental apparatus, processing techniques, and experimental results are presented. The technique has been demonstrated for remote sensing of atmospheric winds along horizontal paths and has potential for global remote sensing of atmospheric winds and for on-board wind shear detection systems for aircraft. Keywords: Remote sensing, Atmospheric winds, Laser, Speckle, turbulence, and Optical heterodyne detection.

Descriptors :   *LASERS, *OPTICAL EQUIPMENT, *RECEIVERS, *REMOTE DETECTORS, *WIND, *TRANSMITTERS, AIRCRAFT, CONTINUOUS WAVES, GLOBAL, HETERODYNING, HORIZONTAL ORIENTATION, METHODOLOGY, OPTICAL DETECTION, PATHS, PROCESSING, TURBULENCE, VECTOR ANALYSIS

Subject Categories : Target Direction, Range and Position Finding
      Optical Detection and Detectors
      Atmospheric Physics
      Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE