**Author details**

Ichi Kanaya1 \* and Eri Itoh2

1 The University of Nagasaki, Nagasaki, Japan

2 Electronic Navigation Research Institute, Tokyo, Japan

\*Address all correspondence to: kanaya@pineapple.cc

© 2019 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
