Calibration and characterization of a low-background chamber in support of hardware-in-the-loop testing and modeling of infrared seekers

Richard D. Tschiegg; Steven J. Conard; Patrick L. Thompson; Adriaan Carter

doi:10.1117/12.669533

16 May 2006 Calibration and characterization of a low-background chamber in support of hardware-in-the-loop testing and modeling of infrared seekers

Richard D. Tschiegg, Steven J. Conard, Patrick L. Thompson, Adriaan Carter

Author Affiliations +

Proceedings Volume 6208, Technologies for Synthetic Environments: Hardware-in-the-Loop Testing XI; 62080B (2006) https://doi.org/10.1117/12.669533
Event: Defense and Security Symposium, 2006, Orlando (Kissimmee), Florida, United States

Abstract

The authors have worked in the past year on integration, characterization, and calibration of The Johns Hopkins University Applied Physics Laboratory's (JHU/APL's) Infrared Seeker Space Calibration and Test facility, a cryogenic-vacuum chamber designed to test infrared seekers that detect targets against low-radiance backgrounds. The facility includes target-like infrared sources with well-known and controllable radiometric attributes and well-known and controllable size, position, and motion. This paper summarizes the basic facility design, capabilities, concept of operations, current and projected uses, challenges, and lessons learned. It describes the chamber calibration and characterization activities conducted jointly by JHU/APL and the National Institute of Standards and Technology (NIST). In particular, this includes a description of the calibration and characterization methodology, modeling of the chamber optical path from the chamber target source module to the unit-under-test entrance aperture, ongoing calibration of the target source module at NIST with an absolute cryogenic radiometer, and planned end-to-end calibration of the chamber at JHU/APL using NIST's transfer radiometer and JHU/APL's field spectroradiometer.

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Richard D. Tschiegg, Steven J. Conard, Patrick L. Thompson, and Adriaan Carter "Calibration and characterization of a low-background chamber in support of hardware-in-the-loop testing and modeling of infrared seekers", Proc. SPIE 6208, Technologies for Synthetic Environments: Hardware-in-the-Loop Testing XI, 62080B (16 May 2006); https://doi.org/10.1117/12.669533

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KEYWORDS

Calibration

Mirrors

Diffraction

Imaging infrared seeker

Collimators

Temperature metrology

Optical filters

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