An Acquisition Sensor For Optical Communications In Space

Enrico Corpaccioli; Giuseppe Borghi

doi:10.1117/12.961534

6 October 1989 An Acquisition Sensor For Optical Communications In Space

Enrico Corpaccioli, Giuseppe Borghi

Proceedings Volume 1131, Optical Space Communication; (1989) https://doi.org/10.1117/12.961534
Event: 1989 International Congress on Optical Science and Engineering, 1989, Paris, France

Abstract

In the frame of Silex project, a prototype model of the Acquisition Sensor (AS) was realized by Officine Galileo; scope of this sensor is to detect the optical signal transmitted by another terminal (either on-ground or on-satellite), and to measure the two-axes position of the incident spot beam. The optical system for focusing the beam on the detector is not part of the AS itself. The sensor is split into two units: a Detection Unit (DU), containing the CCD detector and the proximity electronic, and the Electronic Unit (EU) containing the processing electronic that drives the DU and evaluates the coordinates of the spot focused on the detector. The first unit was a flight-oriented realization; an accurate positioning procedure for the detector (few micrometers of error) was developed. The capability of the sensor to operate with minimum arrangements in the wide range of conditions imposed by the different links GEO-GEO and LEO-GEO is investigated. The most critical aspect, the choice of the detection threshold at varying of input signal power, background noise and operating frequency, is well explained. Finally, results of preliminary tests are reported.

Citation Download Citation

Enrico Corpaccioli and Giuseppe Borghi "An Acquisition Sensor For Optical Communications In Space", Proc. SPIE 1131, Optical Space Communication, (6 October 1989); https://doi.org/10.1117/12.961534

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