Underwater Navigation Systems for Autonomous Underwater Vehicle

Over the past few decades, researchers, navy of different countries and different organizations related to maritime archaeology, underwater mines & pipelines etc. had paid considerable attention towards underwater surveying & inspection by autonomous robot or vehicle. Considerable improvements for better AUV navigation have seen in different sensors in recent years. The sensors are available with not only improved performance but lesser cost and reduced size as well. In addition to these developments, huge improvements in path planning of AUVs have also seen with advanced navigation techniques & algorithm such as SLAM. This paper presents a survey on some important navigation systems for AUV. These techniques can be used to calculate the current position or to localize the robot/vehicle underwater.