Evaluation of an acoustic detection algorithm for reactive collision avoidance in underwater applications
Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2013.
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| Format: | Thesis |
| Language: | eng |
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Massachusetts Institute of Technology
2014
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| Online Access: | http://hdl.handle.net/1721.1/83753 |
| _version_ | 1826201815682646016 |
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| author | Viquez Rojas, Oscar Alberto |
| author2 | Henrik Schmidt. |
| author_facet | Henrik Schmidt. Viquez Rojas, Oscar Alberto |
| author_sort | Viquez Rojas, Oscar Alberto |
| collection | MIT |
| description | Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2013. |
| first_indexed | 2024-09-23T11:57:20Z |
| format | Thesis |
| id | mit-1721.1/83753 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T11:57:20Z |
| publishDate | 2014 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/837532019-04-11T11:33:41Z Evaluation of an acoustic detection algorithm for reactive collision avoidance in underwater applications Viquez Rojas, Oscar Alberto Henrik Schmidt. Massachusetts Institute of Technology. Department of Mechanical Engineering. Massachusetts Institute of Technology. Department of Mechanical Engineering. Mechanical Engineering. Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2013. Cataloged from PDF version of thesis. Includes bibliographical references (page 33). This thesis sought to evaluate a vehicle detection algorithm based on a passive acoustic sensor, intended for autonomous collision avoidance in Unmanned Underwater Vehicles. By placing a hydrophone at a safe distance from a dock, it was possible to record the acoustic signature generated by a small motor boat as it navigated towards, and then away from the sensor. The time-varying sound intensity was estimated by Root Mean Square of the sound amplitude in discrete samples. The time-derivative of the sound intensity was then used to estimate the time to arrival, or collision, of the acoustic source. The algorithm was found to provide a good estimate of the time to collision, with a small standard deviation for the projected collision time, when the acoustic source was moving at approximately constant speed, providing validation of the model at the proof-of-concept level. by Oscar Alberto Viquez Rojas. S.B. 2014-01-09T19:51:22Z 2014-01-09T19:51:22Z 2013 Thesis http://hdl.handle.net/1721.1/83753 864756715 eng M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 33 pages application/pdf Massachusetts Institute of Technology |
| spellingShingle | Mechanical Engineering. Viquez Rojas, Oscar Alberto Evaluation of an acoustic detection algorithm for reactive collision avoidance in underwater applications |
| title | Evaluation of an acoustic detection algorithm for reactive collision avoidance in underwater applications |
| title_full | Evaluation of an acoustic detection algorithm for reactive collision avoidance in underwater applications |
| title_fullStr | Evaluation of an acoustic detection algorithm for reactive collision avoidance in underwater applications |
| title_full_unstemmed | Evaluation of an acoustic detection algorithm for reactive collision avoidance in underwater applications |
| title_short | Evaluation of an acoustic detection algorithm for reactive collision avoidance in underwater applications |
| title_sort | evaluation of an acoustic detection algorithm for reactive collision avoidance in underwater applications |
| topic | Mechanical Engineering. |
| url | http://hdl.handle.net/1721.1/83753 |
| work_keys_str_mv | AT viquezrojasoscaralberto evaluationofanacousticdetectionalgorithmforreactivecollisionavoidanceinunderwaterapplications |