Hard-wired digital data preprocessing applied within a modular star and target tracker

Uwe Schmidt; Dietmar Wunder

doi:10.1117/12.279521

29 October 1997 Hard-wired digital data preprocessing applied within a modular star and target tracker

Uwe Schmidt, Dietmar Wunder

Proceedings Volume 3163, Signal and Data Processing of Small Targets 1997; (1997) https://doi.org/10.1117/12.279521
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

Star sensors developed in the last years can be enhanced in terms of mass reduction, lower power consumption, and operational flexibility, by taking advantage of improvements in the detector technology and the electronics components. Jena-Optronik GmbH developed an intelligent modular star and target named 'stellar and extended target intelligent sensor' (SETIS). Emphasis was placed to increase the sensor adaptability to meet specific mission requirements. The intelligent modular star and target tracker shall generate positional information regarding a number of celestial targets or shall act as a navigation camera. The targets will be either stars or extended objects like comets and planetary objects, or both simultaneously. Deign drivers like simultaneous tracking of extended targets and stars or searching for new objects during tracking of already detected objects require a powerful hard-wired digital data preprocessing. An advanced rad-tolerant ASIC- technology is used for the star tracker preprocessor electronics. All of the necessary preprocessing star tracker functions like pixel defect correction, filtering, on-line background estimation, thresholding, object detection and extraction and pixel centroiding are realized in the ASIC design. The technical approach for the intelligent modular star and target tracker is presented in detail. Emphasis is placed on the description of the powerful signal preprocessing capabilities.

Citation Download Citation

Uwe Schmidt and Dietmar Wunder "Hard-wired digital data preprocessing applied within a modular star and target tracker", Proc. SPIE 3163, Signal and Data Processing of Small Targets 1997, (29 October 1997); https://doi.org/10.1117/12.279521

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