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DEVELOPMENT OF LOW PROBABILITY OF INTERCEPT/ANTIJAM (LPI/AJ) MODEM

Award Information

Agency:
Department of Defense
Branch:
Navy
Award ID:
12201
Program Year/Program:
1990 / SBIR
Agency Tracking Number:
12201
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Amerasia Technology, Inc.
2248 Townsgate Road Westlake Village, CA 91361
View profile »
Woman-Owned: No
Minority-Owned: Yes
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1990
Title: DEVELOPMENT OF LOW PROBABILITY OF INTERCEPT/ANTIJAM (LPI/AJ) MODEM
Agency / Branch: DOD / NAVY
Contract: N/A
Award Amount: $49,977.00
 

Abstract:

AN INNOVATIVE LPI/AJ (LOW PROBABILITY OF INTERCEPT/ANTI-JAM) MODEM IS PROPOSED FOR THE SECURED COMMUNICATION LINK BETWEEN U.S. MILITARY AIRCRAFTS. THIS MODEM UTILIZES SPECTRAL SHAPING AND DECEPTION (SSHADE) TECHNIQUE WHICH IS CAPABLE OF PROVIDING COVERT VOICE/DATA COMMUNICATIONS IN A HOSTILE JAMMING ENVIRONMENT. THE PROPOSED TECHNIQUE GIVE 40 DB OF PROCESSING GAIN BY SPREADING THE ENERGY OVER A 40 MHZ BANDWIDTH WHEN NARROWBAND (2.4 KBPS) DIGITAL VOICE ENCODING (LPC-10E) IS USED. PRELIMINARY TRADOFF STUDY SHOWS THAT LPC-10E PROVIDES LONGER CODE LENGTH THAN CVSD (CONTINUOUS VARIABLE SLOPE DELTA). THIS MODEM HAS THE POTENTIAL OF PERFORMING IN A -30 DB SIGNAL-TO-NOISE ENVIRONMENT. JAM RESISTANT CAPABILITY IS PROVIDED BY THE AVAILABLE 40 DB PROCESSING GAIN DUE TO SPECTRUM SPREADING. ANOTHER INNOVATION IS THE USE OF SURFACE-ACOUSTIC-WAVE (SAW) CONVOLVER FOR DESPREADING THE RECEIVED SIGNAL WITHOUT THE NEED FOR COMPLEX CODE SYNCHRONIZATION PROCESS.

Principal Investigator:

Dr Teong C Lim
8054959388

Business Contact:

Small Business Information at Submission:

Amerasia Technology Inc
620-1 Hampshire Rd Westlake Village, CA 91361

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