An Evaluation Method of Underwater Ocean Environment Safety Situation Based on D-S Evidence Theory
Because of complex ocean environment, underwater vehicles are facing many challenges in navigation safety and precise navigation. Aiming at the requirements of underwater navigation safety, this paper presents an evaluation method of underwater ocean environment safety situation based on Dempster-Sh...
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2015-01-01
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Series: | Advances in Meteorology |
Online Access: | http://dx.doi.org/10.1155/2015/207656 |
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doaj-c4306ab04f73481aac6c66a358b86dc32020-11-24T23:19:47ZengHindawi LimitedAdvances in Meteorology1687-93091687-93172015-01-01201510.1155/2015/207656207656An Evaluation Method of Underwater Ocean Environment Safety Situation Based on D-S Evidence TheoryYuxin Zhao0Renfeng Jia1Chang Liu2College of Automation, Harbin Engineering University, Harbin 150001, ChinaCollege of Automation, Harbin Engineering University, Harbin 150001, ChinaCollege of Automation, Harbin Engineering University, Harbin 150001, ChinaBecause of complex ocean environment, underwater vehicles are facing many challenges in navigation safety and precise navigation. Aiming at the requirements of underwater navigation safety, this paper presents an evaluation method of underwater ocean environment safety situation based on Dempster-Shafer (D-S) evidence theory. Firstly, the vital ocean environment factors which affect the underwater navigation safety are taken into account, and a novel basic probability assignment (BPA) construction method of ocean environment factors is proposed according to their characteristics. Then, a new transformation method of BPA to decision-making probability is put forward to deal with the uncertainty degree. Furthermore, the super-standard weight is applied to preprocess the BPA, and D-S combination rule is used to acquire the evaluation result by fusing the preprocessed BPA. Ocean environment safety situation index is obtained by quantizing the evaluation grades. Finally, experimental results show that the method proposed has the superior practicability and reliability in actual applications.http://dx.doi.org/10.1155/2015/207656 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yuxin Zhao Renfeng Jia Chang Liu |
spellingShingle |
Yuxin Zhao Renfeng Jia Chang Liu An Evaluation Method of Underwater Ocean Environment Safety Situation Based on D-S Evidence Theory Advances in Meteorology |
author_facet |
Yuxin Zhao Renfeng Jia Chang Liu |
author_sort |
Yuxin Zhao |
title |
An Evaluation Method of Underwater Ocean Environment Safety Situation Based on D-S Evidence Theory |
title_short |
An Evaluation Method of Underwater Ocean Environment Safety Situation Based on D-S Evidence Theory |
title_full |
An Evaluation Method of Underwater Ocean Environment Safety Situation Based on D-S Evidence Theory |
title_fullStr |
An Evaluation Method of Underwater Ocean Environment Safety Situation Based on D-S Evidence Theory |
title_full_unstemmed |
An Evaluation Method of Underwater Ocean Environment Safety Situation Based on D-S Evidence Theory |
title_sort |
evaluation method of underwater ocean environment safety situation based on d-s evidence theory |
publisher |
Hindawi Limited |
series |
Advances in Meteorology |
issn |
1687-9309 1687-9317 |
publishDate |
2015-01-01 |
description |
Because of complex ocean environment, underwater vehicles are facing many challenges in navigation safety and precise navigation. Aiming at the requirements of underwater navigation safety, this paper presents an evaluation method of underwater ocean environment safety situation based on Dempster-Shafer (D-S) evidence theory. Firstly, the vital ocean environment factors which affect the underwater navigation safety are taken into account, and a novel basic probability assignment (BPA) construction method of ocean environment factors is proposed according to their characteristics. Then, a new transformation method of BPA to decision-making probability is put forward to deal with the uncertainty degree. Furthermore, the super-standard weight is applied to preprocess the BPA, and D-S combination rule is used to acquire the evaluation result by fusing the preprocessed BPA. Ocean environment safety situation index is obtained by quantizing the evaluation grades. Finally, experimental results show that the method proposed has the superior practicability and reliability in actual applications. |
url |
http://dx.doi.org/10.1155/2015/207656 |
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1725576889961021440 |