Terminal Homing Applications Of Solid-State Imaging Devices (Thassid) Composite Tracking Concepts

J. H. Priduen; W. W. Boyd; W. C. Choate; E. E. Mooty; R. B. Ottesen

doi:10.1117/12.957501

4 September 1979 Terminal Homing Applications Of Solid-State Imaging Devices (Thassid) Composite Tracking Concepts

J. H. Priduen, W. W. Boyd, W. C. Choate, E. E. Mooty, R. B. Ottesen

Proceedings Volume 0186, Digital Processing of Aerial Images; (1979) https://doi.org/10.1117/12.957501
Event: 1979 Huntsville Technical Symposium, 1979, Huntsville, United States

Abstract

The objective of THASSID (Terminal Homing Applications of Solid-State Imaging Devices) is to develop an advanced optoelectronic solid-state seeker with true fire-and-forget capability. The system comprises an image intensified CCD camera mounted on a gimbaled, momentum-stabilized platform and a digital tracker of advanced design. The camera employs a 490 x 327 picture element CCD array encapsulated in a focused electron tube. This paper describes the composite tracker containing three major subsystems: adaptive gate centroid tracker, correlation tracker, and moving target tracker. System operation is controlled by a Texas Instruments SBP 9900 microprocessor with substantial portions of the tracking algorithms allocated to the microprocessor. Microprocessor support of the composite tracker includes adaptive image quantization, correlation feature selection, feature update, feature replacement, scene stabilization computations':, control of electronic de-zoom, centroid gate position, size, and thresholding, and moving-target-tracker search algorithms. The microprocessor also establishes the operating mode of the correlation tracker and its role in relation to the other tracking subsystems. During the terminal impact phase of the mission the correlation tracker is the primary tracking subsystem. A system incorporating these concepts was delivered to the U. S. Army Missile Research and Development Command for testing and evaluation.

Citation Download Citation

J. H. Priduen, W. W. Boyd, W. C. Choate, E. E. Mooty, and R. B. Ottesen "Terminal Homing Applications Of Solid-State Imaging Devices (Thassid) Composite Tracking Concepts", Proc. SPIE 0186, Digital Processing of Aerial Images, (4 September 1979); https://doi.org/10.1117/12.957501

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