Ceramic Composite Lined Metal Composite Gun Barrels for Small Arms

SBIR N00-014 addresses the problem of developing a tool that can provide environmental assessments in support of the deployment and operation of active sonar systems. DSR's proposed product will initially target support of the SH-60R Airborne Low FrequencySonar (ALFS). The design of the product will be modular so that functions that address unique SH-60R characteristics are easily separable from the basic environmental assessment capability. The proposed environmental assessment capability is based on anexisting product that tracks both the acoustic source and the animals' movements, estimating the incident sound intensity and resulting impact on the animals. The product interfaces to a propagation model (selected based on the particular sonar system) tocharacterize the acoustic propagation and combines this information with models of the migration habits, behavior and physiology of various animal species. Incorporation of information such as ocean characteristics, weather patterns and actual animalsightings are also included in the design. The product is modular enough to accommodate any acoustic propagation model and to support other sonar systems simply by modifying the functions that interface the environmental assessment functions to the uniqueprocessing algorithms, interfaces, communication channels and OMI of the selected sonar system.Completion of this effort (Phase I and Phase II) will result in development of a tool that provides an environmental assessment capability to support deploymentand operation of the SH-60R acoustics system. With appropriate interface modifications, this same capability could be provided to other U.S. Navy sonar systems and commercial systems that use acoustic energy to explore or characterize the ocean