Accession Number : ADP006126

Title :   Infrared Atmospheric Transmission/Emission Measurement in a Maritime Environment,

Corporate Author : BRITISH AEROSPACE PLC BRISTOL (UNITED KINGDOM)

Personal Author(s) : Bishop, G. J. ; Larkin, I. W.

Report Date : MAY 1987

Pagination or Media Count : 12

Abstract : This paper is divided into two parts, the first covering atmospheric measurement trials, the second describing predictions of atmospheric effects on sensor design. In 1985 a programme of collaborative electro-optical research was agreed between ARE (Admiralty Research Establishment) and British Aerospace, co-ordinated by the Naval and Electronic Systems Division at Bristol. The object of this research was to gather trials data on the performance of electro-optical systems in a maritime environment. In order to achieve this objective, it was important to measure the atmospheric transmission/emission close to the sea surface in a variety of weather conditions. During the course of the trial (Fraser Battery October 1985) considerable experience was gained in the operation of various imaging sensors, especially in calibration and measurement techniques. The need to obtain calibration measurements of atmospheric transmission/emission between the electro-optic sensor and any trials target is to be emphasised. This paper describes how these measurements were made and compares the results to those predicted by the Lowtran V atmospheric model. The second part of this paper describes how ozone absorption will affect the design of a passive surveillance system working in the ultraviolet band. (Author)

Descriptors :   *LIGHT TRANSMISSION, *INFRARED RADIATION, RADIATION ABSORPTION, MARINE ATMOSPHERES, ELECTROOPTICS, INFRARED DETECTORS, OZONE, ULTRAVIOLET DETECTION, SURVEILLANCE, SYMPOSIA, GREAT BRITAIN.

Subject Categories : Radiofrequency Wave Propagation
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE