Study of Depth Control Method for Unmanned Underwater Vehicle (UUV)

Background and Objective: Appropriate depth controlling in Unmanned Underwater Vehicle (UUV) are always the challenging part.Several researches developed techniques to make smooth depth controlling in UUV but still there is a lot of room of improvement in this area of research.The combination of non-linear behavior between both Unmanned Underwater Vehicle (UUV) and environment itself does the main problem on doing this optimal control method.While the Remotely Operated Vehicle (ROV) were controlled by human pilot which differs, thereʼs a need to make this vehicle to make it autonomous to make the vehicle can move in autopilot mode.Methodology: In this study different depth controlling method of Unmanned Underwater Vehicle UUV were compared and perform analytical judgment on choosing the best depth controlling method for Unmanned Underwater Vehicle (UUV).Results: After the detail analysis of all selected depth control techniques, a performance analytical table was developed and analytical results showed that Hybrid Fuzzy PID control system was best suitable among the others control techniques.Conclusion: From this research study it was concluded that depth control is one of the critical factor in the performance of UUV and appropriate selection of depth control is very important.Proper choice of the controller definitely enhanced the performance of the UUV.