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SIGNAL PROCESSING ARCHITECTURE FOR A DISTRIBUTED SPARSE ARRAY (DSA) RADAR SYSTEM

Award Information

Agency:
Department of Defense
Branch:
Air Force
Award ID:
5998
Program Year/Program:
1988 / SBIR
Agency Tracking Number:
5998
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Interspec Inc
110 W Butler Avenue Ambler, PA 19002
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 1988
Title: SIGNAL PROCESSING ARCHITECTURE FOR A DISTRIBUTED SPARSE ARRAY (DSA) RADAR SYSTEM
Agency / Branch: DOD / USAF
Contract: N/A
Award Amount: $497,000.00
 

Abstract:

WE PROPOSE TO DEVELOP A NOVEL SIGNAL PROCESSING ARCHITECTURE FOR THE DISTRIBUTED SPARSE ARRAY (DSA) RADAR. THE SYSTEM IS A SPACE-BASED, THINNED PHASED ARRAY RADAR IN WHICH EACH ARRAY ELEMENT IS A SEPARATE SPACECRAFT (CALLED A MINI-RADAR). MINI-RADARS COOPERATE TO FORM A SINGLE COHERENT RADAR BEAM. THE NEW ARCHITECTURE DISTRIBUTES SIGNAL PROCESSING ALMOST EQUALLY THROUGHOUT THE MINI-RADARS AND ALLOWS FOR PROCESSING RECONFIGURATION IN THE EVENT OF A SINGLE (OR EVEN MULTIPLE)MINI-RADAR FAILURE OR DESTRUCTION. THE KEY IDEA IS TO DISTRIBUTE ARRAY PROCESSING AMOND THE SPACECRFT ACCORDING TO RANGE OR DOPPLER SHIFT. THIS IS DONE BY DIVIDING THE TOTAL RANGE/DOPPLER INTERVAL COVERED INTO N EQUAL RANGE/SOPPLER SUBINTERVALS AND ASSIGNING EACH SUBINTERVAL TO ONE OF THE MINI-RADARS FOR PROCESSING. IN OTHER WORDS,EACH MINI-RADAR BECOMES THE CENTRAL PROCESSOR OR "MASTER" FOR A PARTICULIAR GROUP OF RANGE/DOPPLER BINS. RECONFIGUREABILITY OF PROCESSING IN THE EVENT OF A LOSS OF ONE OR MORE MINI-RADARS IS STRAIGHTFORWARD: DIVIDE THE TOTAL NUMER OF RANGE/DOPPLER BINS OF INTEREST EQUALLY AMONG THE SURVIVORS. WE SHOW THAT THIS PROCESSING STRATEGY REQUIRES A MINIMUM OF DATA STORAGE AND GOES HAND-IN HAND WITH STATE-OF-THE-ART SELF-COHERING, BEAM NULLING, AND CLUTTER REJECTION TECHNIQUES.

Principal Investigator:

Dr E Hesham Attia
2158341511

Business Contact:

Small Business Information at Submission:

Interspec Inc.
1100 E Hector St Conshohocken, PA 19428

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