FM Video Data Link Spectrum Spreading.

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Abstract:

A video data link system utilizes spread spectrum to decrease the susceptibility of a low power video link to radio frequency countermeasures. The video data link system utilizes a combination of spread spectrum direct-sequence modulation and frequency-hop along with frequency modulation to provide spectral spreading of radio frequency energy to a bandwidth much greater than the information bandwidth. The direct sequence modulation allows minimization of the number of frequency steps required for complete spectral filling of the operational bandwidth on an average basis. Frequency hop timing is determined from the phase of the direct sequence generator to simplify the frequency hop synchronization process in the receiver.

Author(s):
Holliday, Edward M. ; Kirshtein, Phillip M. ; Weathers, Glenn D.
Author Organization(s):
DEPARTMENT OF THE ARMY WASHINGTON DC
Descriptive Note:
Patent Application, Filed 8 Oct 91,
Pagination:
0021

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
PAT-APPL-772 999
 Subject Terms
Joint Capability Areas:
JCA_6_Net Centric; JCA_6.1_Information Transport; JCA_6.3.3_Spectrum Management; JCA_6.3_Net Management
Communities of Interest:
Materials and Manufacturing Processes
Descriptor(s):
*PATENT APPLICATIONS,
Field(s)/Group(s):
Telemetry, Radiofrequency Wave Propagation
Keyword(s):
*Video data link systems, *Data links, Countermeasures, Radio frequency, Spread spectrum, Wave propagation, Telecommunications, Video signals, Direct sequence bandwidth, Frequency agility
Report Date:
1991 Oct 08