This paper proposes a study for accurate surface localization system using DWT(Discrete Wavelet Transform) and GPS/INS fusion algorithm. Because the propagation in the underwater is not passed by characteristics of the medium unlike the ground, the sonar system like DVL is used instead of GPS. But since these systems are installed on the seafloor and operated, a long time is required for installation and navigation systems are limited outside of the range area. And it is difficult to estimate position in a three-dimensional considering the depth in actual marine environment. In this paper, before the development of underwater localization system, precisely estimated position system is proposed in a two-dimensional by developing surface localization system using removing noise and disturbance with DWT and relatively inexpensive GPS and INS sensor.

• 유한동(Electronic Engineering, Pusan National University) | Han-Dong Yoo
• 이인욱(Electronic Engineering, Pusan National University) | In-Uk Lee
• 최원석(Electronic Engineering, Pusan National University) | Won-Suck Choi
• 이장명(Electronic Engineering, Pusan National University) | Jang-Myung Lee Corresponding author