Radiometric Measurements by the MIDAS III System at Key West. Volume I. Cloud Backgrounds

摘要

This report describes the test equipment, test procedures, test site and test results for a program to measure the infrared signatures of a representative sample of cloud backgrounds and aircraft at Key West, Florida. Data on various clouds were gathered between April 26 & May 10, 1979, and data on F-4 and F-14 aircraft were gathered between June 4 & June 19, 1979. The MIDAS III radiometer was used to measure the infrared signatures of the aircraft during the day and a number of different types of cloud backgrounds at various times of the day and night and at various angles with respect to the sun. The MIDAS III System is a small-field scanning radiometer that makes simultaneous measurement of infrared sources in the 3-5 and 8-13 micrometer spectral regions. The 3-5 spectral region is further sub-divided into smaller spectral bands by inserting various spectral filters in front of the 3-5 detector. (Author)