Research to understand DSP for high-throughput MCM sonars and UUVs., underwater weapon homing and countermeasure algorithms and systems. Also includes DSP techniques in relation to radar systems, weapon dynamics, guidance and weapon/target interactions. Also includes work to understand application of DSP to Satcom EPM and multifunction RF modems, to future software radio concepts, EPM and adaptive systems concepts for tactical communications. Research to understand novel mathematical techniques and to aid the evaluation and analysis of DSP in systems involving PAR, sonar, and comms. hardware. Also includes fast DSP techniques, signal correlation, single flux quantum logic in high temperature superconducting devices, and Focal Plane Processing techniques. Also includes data compression/decompression techniques for video and other applications.