Evaluation of the Lidar Technique of Determining Slant Range Visibility for Aircraft Landings Operations.

摘要

The report presents and interprets the data from an experiment specifically designed to more precisely evaluate the lidar technique of measuring slant-range visibility. The evaluation experiment was conducted at Travis AFB,California,in January 1973. The primary instruments were a pulsed ruby lidar and four transmissometers installed on towers and aligned along horizontal and slant paths. Also,arrays of three passive reflectors or targets (two wire-mesh and one solid) were used to provide a measure of attenuation over the distance between targets by comparing the intensity of the target-reflected lidar signals. Single-ended lidar backscatter measurements were made alongside the transmissometer. Daytime visual range was computed from the lidar observations by the slope method. (Modified author abstract)