Steering and positioning targets for HWIL IR testing at cryogenic conditions

D. W. Perkes; G. L. Jensen; D. L. Higham; H. S. Lowry; W. R. Simpson

doi:10.1117/12.669303

16 May 2006 Steering and positioning targets for HWIL IR testing at cryogenic conditions

D. W. Perkes, G. L. Jensen, D. L. Higham, H. S. Lowry, W. R. Simpson

Proceedings Volume 6208, Technologies for Synthetic Environments: Hardware-in-the-Loop Testing XI; 62080C (2006) https://doi.org/10.1117/12.669303
Event: Defense and Security Symposium, 2006, Orlando (Kissimmee), Florida, United States

Abstract

In order to increase the fidelity of hardware-in-the-loop ground-truth testing, it is desirable to create a dynamic scene of multiple, independently controlled IR point sources. ATK-Mission Research has developed and supplied the steering mirror systems for the 7V and 10V Space Simulation Test Chambers at the Arnold Engineering Development Center (AEDC), Air Force Materiel Command (AFMC). A portion of the 10V system incorporates multiple target sources beam-combined at the focal point of a 20K cryogenic collimator. Each IR source consists of a precision blackbody with cryogenic aperture and filter wheels mounted on a cryogenic two-axis translation stage. This point source target scene is steered by a high-speed steering mirror to produce further complex motion. The scene changes dynamically in order to simulate an actual operational scene as viewed by the System Under Test (SUT) as it executes various dynamic look-direction changes during its flight to a target. Synchronization and real-time hardware-in-the-loop control is accomplished using reflective memory for each subsystem control and feedback loop. This paper focuses on the steering mirror system and the required tradeoffs of optical performance, precision, repeatability and high-speed motion as well as the complications of encoder feedback calibration and operation at 20K.

Citation Download Citation

D. W. Perkes, G. L. Jensen, D. L. Higham, H. S. Lowry, and W. R. Simpson "Steering and positioning targets for HWIL IR testing at cryogenic conditions", Proc. SPIE 6208, Technologies for Synthetic Environments: Hardware-in-the-Loop Testing XI, 62080C (16 May 2006); https://doi.org/10.1117/12.669303

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available