FREQUENCY ANALYSIS

THIS POPOSAL IS DIRECTED TO TH OBJECTIVE OF OBTAINING VISIBILITY ESTIMATES FOR "SILENT" AREAS USING DMSP IMAGERY. THE METHOD PROPOSED FOR EVALUATION OF FOURIER ANALYSIS OF DIGITIZED IMAGES TO PERMIT SPATIAL FREQUENCY ANALYSIS OF EITHER NATURAL OR MAN MADE PATTERNS PRESENT IN THE SCENES. CHANGES IN THE SPATIAL FREQUENCY CONTENT FROM ONE AREA TO THE NEXT OR FROM SCENE WOULD BE INDICATIVE OF CHANGES IN VISIBILITY IN THE VERTICAL PATH ABOVE THE TARGET. DMSP-RESOLVABLE TARGETS WOULD BE LARGE DIMENSIONED GEOLOGICAL FEATURES SUCH AS FOLD BELTS AND JOINT PATTERNS AND MUST PRODUCE A STABEL SPATIAL FREQUENCY PATTEN UNDER LIKE VISIBILITY CONDITIONS. USE WOULD BE MADE OF MAN-MADE PATTERNS DUE TO CROP MARKS AND LIGHTED NIGHTTIME CITY GID PATTERNS. THE TYPE OF SCATTERERS INVOLVED (RAYLEIGH OR MIE) WOULD ALSO BE CONSIDERED BASED ON THE COLOR OF THE TARGET. THE PHASE I EFFORT WOULD BE CONCERNED WITH ESTABLSIHING FEASIBILITY BE SELECTING AND EVALUATION TARGETS FROM ACTUAL DMSP SCENE ARCHIVES. CRITERIA WOULD BE STABILITY OF SPATIAL FREQUENCY CONTENT, AND VARIATION WITH VISIBILITY CHANGES. PHASE II EFFORT WOULD INVOLVE FIELD TESTS OF U.S. TARGETS CHOSEN USING CONVENTIONAL VISIBILITY TECHNIQUES AGAINST THE PROPOSED PERIODIC TARGET CONTRAST METHOD. COST ANALYSIS SOFTWAE FOR CONTRACT ADMINISTRATION THIS PROJECT IN PHASE I, EXAMINES THE TECHNICAL FEASIBILITY OF AUTOMATING THE USE OF THE UNDERLYING LEARNING CURVE (ULCO) APPROACH FOR USE BY CONTACT ADMINISTATION ORGANIZATIONS. THE UNDERLYING LEARNING CURVE (ULC) TECHNIQUE COMBINES BOTH ENGINEERING AND PARAMETRIC ESTIMATING APPROACHES TO PROVDIE A "SHOULD COST" ESTIMATE OF DIRECT LABOR. ULC ALLOWS THE THE DISCIPLINED INTEGRATION OF THE DATA FOUND IN THE CONTRACTORS'S WORK MEASUREMENT AND COST ACCOUNTING SYSTEMS, LEADING TO THE QUANTIFICATION OF THE TIME ASSOCIATED WITH PARKINSON'S LAW. PROJECT INCLUDES REVIEW OF LATEST LEARNING CURVEL LITERATURE, UNDERLYING LEARNING CURVE THEORIES, DEVELOPMENT OF AUTOMATED DATA PUTER SOFTWARE, TEST EVALUATION OF THE ULC APPROACH. FINAL REPORT INCLUDES DOCUMENTATION IN ACCORDANCE WITH DODI 7935. 1-S, AUTOMATED DATA SYSTEMS DOCUMENTATION STANDARDS.