NDLI: Small satellite SIGINT payload

Content Provider	IEEE Xplore Digital Library
Author	Whittaker, P.E. Hodgart, M.S.
Copyright Year	2000
Description	Author affiliation: Space Centre, Surrey Univ., Guildford, UK (Whittaker, P.E.)
Abstract	A history of in-orbit operation of fifteen low Earth orbit (LEO) satellites by the Surrey Space Centre has highlighted the usefulness to the civilian market of measuring and analysing the crowded RF spectrum from the LEO perspective. A desirable instrument would be a payload that performs spectral analysis of a wide frequency range rapidly and to a useful resolution, while combining a capability for further time domain analysis of particular signals. A conventional system architecture adopts a channelised approach, sampling and processing each channel in turn over some repetition period. Here, the authors propose a novel sweeping system which provides a more elegant and possibly more efficient solution. Digital chirp filter processing can be employed to achieve suitable resolution spectral analysis. An explanation of the operation of a sweeping system, including chirp filter spectral analysis, is presented along with a comparison with a channelised approach.
Starting Page	625
Ending Page	632
File Size	714492
Page Count	8
File Format	PDF
ISBN	0780362624
DOI	10.1109/NAECON.2000.894971
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-10-12
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Payloads Low earth orbit satellites Spectral analysis Signal resolution Chirp Filters History Extraterrestrial measurements Radio frequency Instruments
Content Type	Text
Resource Type	Article

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