Accession Number : ADA277469


Title :   High Frequency Active Auroral Research Program (HAARP) Imager


Descriptive Note : Final rept. 29 Aug 1991-29 Aug 1993


Corporate Author : PHILLIPS LAB HANSCOM AFB MA


Personal Author(s) : Lance, Cyril ; Eather, Robert


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a277469.pdf


Report Date : 30 Sep 1993


Pagination or Media Count : 322


Abstract : A low-light-level monochromatic imaging system was designed and fabricated which was optimized to detect and record optical emissions associated with high-power rf heating of the ionosphere. The instrument is capable of detecting very low intensities, of the order of 1 Rayleigh, from typical ionospheric atomic and molecular emissions. This is achieved through co-adding of ON images during heater pulses and subtraction of OFF (background) images between pulses. Images can be displayed and analyzed in real time and stored in optical disc for later analysis. Full image processing software is provided which was customized for this application and uses menu or mouse user interaction.


Descriptors :   *IMAGE PROCESSING , *OPTICAL IMAGES , *AURORAE , COMPUTER PROGRAMS , HIGH POWER , EMISSION , IONOSPHERE , OPTICAL EQUIPMENT , HIGH FREQUENCY , DETECTION , HEATING , IMAGES , CAMERAS , OPTICAL STORAGE , RADIOFREQUENCY , AIRGLOW , CHARGE COUPLED DEVICES


Subject Categories : Atmospheric Physics
      Cybernetics
      Optics


Distribution Statement : APPROVED FOR PUBLIC RELEASE