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In order to close the capability gap in autonomous close-in monitoring and to increase protection against asymmetric threats, DiehlDefence was tasked with the development of an optical surveillance system.
Diehl designed SIMONE (Ship Infrared Monitoring Observation and Navigation Equipment) to equip new and existing New Hayesalian combat vessels. The system provides complete and permanent monitoring of the vessel's structure as well as it allows early and reliable detection of small objects, even very small suspicious objects such as inflatable rubber boats or persons swimming, enabling flexible and precise response.
SIMONE takes into account the new crew concept envisaging less manpower by provision of autonomous monitoring requiring no additional personnel. Automatic alarm with relevant data for the command and control system is generated in case of detected threats. Uncooled infrared detectors featuring longevity as well as 24/7 high image quality meet the requirement of permanent operational readiness.
Automatic processing for the purpose of object detection imposes specific demands on the image quality, such as stable performance with high detection rates and low false-alarm probability. Sensors enable infrared and night vision, and sensors can avoid saturation. Long-wave IR sensors experience low impact from sun glint and external illumination. Thus, objects with low thermal contrast respective to their natural background (i.e., little temperature difference) can be resolved in the long-wave IR spectral range. Sensors with different spectral responses partially enhance the detection rate under specific diurnal and environmental conditions. However, considering cost effectiveness, the use of a sensor with universal application was preferable.