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A MONOLITHIC ACT CHANNELIZED INTERCEPT SYSTEM

Award Information
Agency: Department of Defense
Branch: Defense Advanced Research Projects Agency
Contract: N/A
Agency Tracking Number: 10076
Amount: $60,522.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: N/A
Solicitation Number: N/A
Timeline
Solicitation Year: N/A
Award Year: 1989
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
8027 Leesburg Pike - Ste 201
Vienna, VA 22182
United States
DUNS: N/A
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Dr Verne G Nomady
 (703) 893-0686
Business Contact
Phone: () -
Research Institution
N/A
Abstract

CURRENT "ALL DIGITAL" CHANNELIZED APPROACHES TO INTERCEPT OF SPREAD SPECTRUM/FREQUENCY HOPPING COMMUNICATIONS SIGNALS CANNOT EFFECTIVELY ADDRESS THE PROBLEMS POSTED BY "FULL BAND: (\200 MHZ) MEDIUM-FAST (> OR - 500 HPS) FREQUENCY HOPPING WAVEFORMS. HYBRID DS/FH COMMUNICATIONS WAVEFORMS POSE EVEN MORE STRINGENT PERFORMANCE REQUIREMENTS, UNSATISFIABLE BY CURRENT OR NEAR-TERM DIGITAL TECHNOLOGY. USE OF ACT TECHNOLOGY AS A DIGITALLY PROGRAMMABLE TRANSVERSAL CHANNELIZER, OPTIMIZED ALTERNATIVELY FOR EITHER "SPREAD" (HYBRID) OR "UNSPREAD) FREQUENCY HOPPING WAVEFORMS CAN PROVIDE THE ESSENTIAL FRONT END FREQUENCY PARTITIONING FUNCTION FOR A HIGH PERFORMANCE SPREAD SPECTRUM/LPI COMMUNICATIONS INTERCEPT SYSTEM. ARRANGING TWO SUCH CHANNELIZERS AS AN INTERFEREOMETER WILL ALLOW EXPLOITATION OF THE ONE ATTRIBUTE WHICH LPI EMITTERS (GENERALLY) CANNOT CONTROL; NAMELY, SPATIALLY COHERENT EMISSIONS. EFFECTING THE INTERFEROMETRIC (AOA) MEASUREMENT(S) VIA A CORRELATION TYPE OF PHASE DETECTOR INSURES COHERENT INTEGRATION PERFORMANCE; 35 TO 40 DB SNR ENHANCEMENT CAN BE EXPECTED FOR (HYBRID) HOP RATES OF 500 TO 1,000 HPS.

* Information listed above is at the time of submission. *

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