Accession Number : AD0600272

Title :   COHERENT OPTICAL RADAR PARAMETERS AND TARGET REFLECTIONS.

Descriptive Note : Technical documentary rept. l July 62-30 Jun 63,

Corporate Author : DAYTON UNIV OHIO RESEARCH INST

Personal Author(s) : Rambauske,Werner R.

Report Date : APR 1964

Pagination or Media Count : 127

Abstract : The problem of the reflection of ruby laser pulses from artificial targets is investigated. The parameters of intensity distribution over the cross-section of a laser beam (in the 0.5 to 3 joule energy range) and the time history of this intensity within one pulse (in the 1/2 to 1 millisecond duration range) are measured and evaluated in different distances from the ruby rod up to 75 meters. Reflection characteristics for different standard geometrical bodies and different standard surface materials are derived experimentally and theoretically for incoherent white illumination and are compared with laser illumination. The change of time history of a single pulse after reflection from the target, due to the targets shape, is studied. This change when compared with the undistorted pulse from the rear of the ruby permits conclusions about the shape of the target. (Author)

Descriptors :   (*LASERS, RADAR), (*LIGHT PULSES, REFLECTION), (*RADAR REFLECTIONS, LASERS), OPTICAL EQUIPMENT COMPONENTS, RUBY, RADAR TARGETS, GEOMETRIC FORMS, SURFACES, CIRCUITS, SIGNALS, INTERFEROMETERS

Distribution Statement : APPROVED FOR PUBLIC RELEASE