Accession Number : ADA226001

Title :   Fire Support in Low Intensity Conflict Is Current Doctrine Adequate?

Corporate Author : SRI INTERNATIONAL MENLO PARK CA

Personal Author(s) : Oxford, Donald G.

Report Date : 13 DEC 1989

Pagination or Media Count : 56

Abstract : A two lidar technique with each lidar observing the same optical path from opposite ends of the path may provide the means to quantitatively evaluate obscurant density parameters without the assumptions needed for analysis of single lidar measurements. The two lidars were positioned at opposite ends of a near common propagation path, and each laser path was terminated by a target with near uniform reflection properties. Application of an analytical two lidar inversion technique yielded unacceptable extinction retrievals--namely, negative extinction coefficients over a significant portion of the laser propagation path. Two possible reasons were identified that might account for the difficulties encountered in the application of the two lidar inversion technique. The first is the performance of the extended-range logarithmic amplifiers that were installed within the lidar receivers specifically for acquiring data through dense obscurants. The second is the effect of multiple scattering on the emitted laser pulse length. Keywords: Lidar, Obscurants, Extinction, Scattering, Transmission, Lidar solutions. (JHD)

Descriptors :   *FIRE SUPPORT, *LOW INTENSITY CONFLICT, *OPTICAL RADAR, COEFFICIENTS, MILITARY DOCTRINE, EXTINCTION, HIGH DENSITY, INVERSION, LASER BEAMS, LIGHT TRANSMISSION, MEASUREMENT, OBSCURATION, OPTICS, PATHS, INFRARED RECEIVERS, REFLECTION, LIGHT SCATTERING, SOLUTIONS(GENERAL).

Subject Categories : Infrared Detection and Detectors
      Optics
      Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE