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MINIMIZING THE EFFECT OF JAMMING THROUGH THE USE OF WIDEBAND HF

Award Information

Agency:
Department of Defense
Branch:
Navy
Award ID:
12928
Program Year/Program:
1990 / SBIR
Agency Tracking Number:
12928
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Scs Telecom, Inc.
107 Haven Avenue Port Washington, NY 11050
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1990
Title: MINIMIZING THE EFFECT OF JAMMING THROUGH THE USE OF WIDEBAND HF
Agency / Branch: DOD / NAVY
Contract: N/A
Award Amount: $49,757.00
 

Abstract:

HF IS USED EXTENSIVELY TO SUPPORT BEYOND-LINE-OF-SIGHT (BLOS) COMMUNICATION REQUIREMENTS. IN GENERAL THESE LINKS ARE BOTH EASY TO EXPLOIT AND EASY TO JAM. FREQUENCY HOPPING TECHNIQUES HAVE BEEN USED WITH LIMITED SUCCESS AGAINST THIS JAMMING. FURTHER, THE DATA TO BE TRANSMITTED IS CONSTRAINED TO HAVE LOW BIT RATES. THIS PROPOSAL DESCRIBES A NOVEL APPROACH TO IMPROVE JAM RESISTANCE AND TO ASSURE LPI AND LPE. THE TECHNIQUES USED INCLUDE SHARPLY FILTERED TRELLIS CODED FM TO PROVIDE LPI AND LPE; DIRECT SEQUENCY SPREAD SPECTRUM OF THE HF SIGNAL TO ACHIEVE A WIDE BANDWIDTH AND REDUCE FADING; AND NARROWBAND EXCISION USING THE FFT TO MINIMIZE THE EFFECT OF JAMMERS.

Principal Investigator:

Marvin Kullback
5168830760

Business Contact:

Small Business Information at Submission:

Scs Telecom Inc
107 Haven Ave Port Washington, NY 11050

EIN/Tax ID:
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No