Star tracker based ATP system conceptual design and pointing accuracy estimation

Gerardo G. Ortiz; Shinhak Lee

doi:10.1117/12.660263

1 March 2006 Star tracker based ATP system conceptual design and pointing accuracy estimation

Gerardo G. Ortiz, Shinhak Lee

Author Affiliations +

Proceedings Volume 6105, Free-Space Laser Communication Technologies XVIII; 61050D (2006) https://doi.org/10.1117/12.660263
Event: Lasers and Applications in Science and Engineering, 2006, San Jose, California, United States

Abstract

A star tracker based beaconless (a.k.a. non-cooperative beacon) acquisition, tracking and pointing concept for precisely pointing an optical communication beam is presented as an innovative approach to extend the range of high bandwidth (> 100 Mbps) deep space optical communication links throughout the solar system and to remove the need for a ground based high power laser as a beacon source. The basic approach for executing the ATP functions involves the use of stars as the reference sources from which the attitude knowledge is obtained and combined with high bandwidth gyroscopes for propagating the pointing knowledge to the beam pointing mechanism. Details of the conceptual design are presented including selection of an orthogonal telescope configuration and the introduction of an optical metering scheme to reduce misalignment error. Also, estimates are presented that demonstrate that aiming of the communications beam to the Earth based receive terminal can be achieved with a total system pointing accuracy of better than 850 nanoradians (3 sigma) from anywhere in the solar system.

Citation Download Citation

Gerardo G. Ortiz, Gerardo G. Ortiz, Shinhak Lee, Shinhak Lee, "Star tracker based ATP system conceptual design and pointing accuracy estimation", Proc. SPIE 6105, Free-Space Laser Communication Technologies XVIII, 61050D (1 March 2006); doi: 10.1117/12.660263; https://doi.org/10.1117/12.660263

ACCESS THE FULL ARTICLE

PERSONAL SIGN IN
Full access may be available with your subscription

Email or Username Forgot your username?

Password Forgot your password?

Show

Remember Email/Username on this computer

Remember Password

No SPIE account? Create an account
or Institutional Sign In via Shibboleth

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

Members: $14.40

Non-members: $18.00 ADD TO CART

Show All Keywords

Keywords/Phrases

Search In:

Publication Years