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Method for scrambling satellite communicationsA secure communications system multiplexes segments of the information signal for keyed encoding and modulation onto a plurality of different carrier frequencies and/or polarizations, and transmits the encoded carriers to multi-channel signal summing receivers that decode the segments from all channels, to reassemble the information signal for use by authorized stations with a key. The use of the multi-channel link and the summing receiver allows the greatest number of different coding algorithms for accommodating the greatest number of discrete secure channels.
Document ID
20080004338
Acquisition Source
Jet Propulsion Laboratory
Document Type
Other - Patent
Authors
Brockman, Milton H.
Date Acquired
August 24, 2013
Publication Date
May 12, 1992
Subject Category
Communications And Radar
Report/Patent Number
Patent Application Number: US-PATENT-APPL-SN-555842
Patent Number: US-PATENT-5,113,443
Funding Number(s)
CONTRACT_GRANT: NAS7-918
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-PATENT-5,113,443
Patent Application
US-PATENT-APPL-SN-555842

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