Popis: |
A Passive MMW sensor capability of 0.5 Krms, at W-Band, achieved with an integration time of less than 0.1 ms is now considered state-of-the-art. Though some engineering details remain concerning Passive Millimeter Wave (PMMW) configurations best suited for imaging applications, motion picture frame rates for most applications appear to be a near future reality. The efficacy of applying these new capabilities to all-weather sensing may in many cases be determined by the characteristics of the all-weather scenario. The Munitions Directorate of the Air Force Research Laboratory is currently investigating phenomenology associated with the PMMW scenario that will influence the achievable capabilities of PMMW sensors, when used under adverse weather conditions. Model predictions and verification measurements are described along with preliminary results. |