Development of the AIRIS-WAD Multispectral Sensor for Airborne Standoff Chemical Agent and Toxic Industrial Chemical Detection

摘要

The AIRIS Wide Area Detection System breadboard was employed in an airborne configuration to detect chemical agent simulant releases during the Technology Readiness Evaluations conducted at Dugway Proving Grounds in July 2002 (TRE-02) and at the Joint Urban 2003 tests at Oklahoma City, OK in July 2003. The observations were conducted from a gyro-stabilized pointing system mounted on a UH-1 helicopter and conducted at ranges up to '7 km and altitudes to 1000 feet in conjunction with the Redstone Technical Test Center. Additional test data will be reported from ground measurements conducted during the TRE-02 and the Pentagon Shield test. In all cases, the sensor comprised a 64x64 element HgCdTe detector array coupled to AIRIS tunable filter resulting in a system with nominal 10 cm-1 spectral resolution and a 0.8 milliradian IFOV. The measured NESR for the system ranged from 2 to 3 micro W/(cm2 sr micrometers). Observations were made of the chemical simulant SF6 and the biological simulant BG. In this paper we will report on quantitative observations of these releases as well as the conversion of the breadboard sensor to a field prototype. The analysis will focus on the ability to detect the releases using various algorithms and tracking of the releases through urban environments.