Quarterly Progress Report Number 2, 1 April-30 June 1969. Open PDF Document Details Document Type Technical Report Publication Date Nov 11, 1969 Accession Number ADA071175 Entities Organizations University of Texas at Austin Tags Communities of Interest Energy and Power Technologies Ground and Sea Platforms Materials and Manufacturing Processes Sensors DTIC Thesaurus Topics Accuracy Computer Programming Computer Programs Computers Detection Fish Frequency Frequency Shift Magnetic Tape Measurement Photographs Radar Recognition Reflectors Reverberation Signal Processing Target Strength