Acknowledgements

This work was funded by the National Natural Science Foundation of China (grant numbers 61701250, 51605202), the Natural Science Foundation of Jiangsu Province (grant number BK20160895, BK20160550).

### Conflict of interest

The authors declare no conflict of interest.

### Author details

Ming Yuan<sup>1</sup> \* and Fan Yang<sup>2</sup> \*

1 School of Automation, Nanjing University of Posts and Telecommunications, Nanjing, China

2 School of Naval Architecture and Ocean Engineering, Jiangsu University of Science and Technology, Zhenjiang, China

\*Address all correspondence to: yuanming@njupt.edu.cn and yangf@just.edu.cn

© 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.
