DYNAMIC PROCESSOR FOR PASSIVE RF RANGING

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N/A
Agency Tracking Number: 9540
Amount: $50,000.00
Phase: Phase I
Program: SBIR
Awards Year: 1989
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Charles River Analytics Inc
55 Wheeler St, Cambridge, MA, 02138
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Dr Greg L Zacharias
 (617) 491-3474
Business Contact
Phone: () -
Research Institution
N/A
Abstract
THE PRIMARY OBJECTIVE OF THE PHASE I EFFORT IS TO EVALUATE THE FEASIBILITY OF DEVELOPING A DYNAMIC PROCESSOR OF SINGLE-PLATFORM PASSIVE RADIO FREQUENCY (RF) MEASUREMENTS, FOR REAL-TIME ESTIMATION OF RANGE AND LOCATION OF THREAT EMITTERS. THE BASIC APPROACH PROPOSED FOR STUDY IS BASED ON A TWO-STAGE PROCESSOR: A "FRONT-END" PROCESSOR WHICH TRANSFORMS THE INCOMING STREAM OF ANGLE-ONLY MEASUREMENTS INTO AN EVOLVING TIME HISTORY OF THREAT HEADING AND RANGE TIME (OR SPEED-NORMALIZED RANGE); AND A SECOND-STAGE DYNAMIC ESTIMATOR WHICH INCORPORATES A MODEL OF THE THREAT/PLATFORM DYNAMICS TO EFFECT NOISE REDUCTION AND ACCURATE RANGING, VIA OPTIMAL FILTERING. WE PROPOSE TO EVALUATE THE SYSTEM'S FEASIBILITY OVER THREE TASKS. WE WILL: 1) DEFINE A PRELIMINARY DESIGN FOR A PASSIVE RANGING SYSTEM BASED UPON THE PROPOSED TWO-STAGE PROCESSOR, AND IDENTIFY BASIC PROCESSING REQUIREMENTS, CANDIDATE ALGORITHMS, AND PERFORMANCE SPECIFICATIONS; 2) IMPLEMENT AND EVALUATE CANDIDATE ALGORITHMS FOR USE IN EACH SUBSYSTEM, AND IDENTIFY THESE FOR INCORPORATION INTO THE OVERALL SYSTEM DESIGN; AND 3) EVALUATE PERFORMANCE VIA A SYSTEM-LEVEL SIMULATION, AND IDENTIFY SIGNIFICANT DESIGN TRADES. A FINAL REPORT WILL SUMMARIZE THE PROGRAM'S OBJECTIVES AND RESULTS, ASSESS BASIC SYSTEM FEASIBILITY, AND OUTLINE A PROGRAM FOR FURTHER DEVELOPMENT, AS REQUIRED.

* information listed above is at the time of submission.

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