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Shore Construction Detection by Automotive Radar for the Needs of Autonomous Surface Vehicle Navigation

Abstract

Autonomous surface vehicles (ASVs) are becoming more and more popular for performing hydrographic and navigational tasks. One of the key aspects of autonomous navigation is the need to avoid collisions with other objects, including shore structures. During a mission, an ASV should be able to automatically detect obstacles and perform suitable maneuvers. This situation also arises in near-coastal areas, where shore structures like berths or moored vessels can be encountered. On the other hand, detection of coastal structures may also be helpful for berthing operations. An ASV can be launched and moored automatically only if it can detect obstacles in its vicinity. One commonly used method for target detection by ASVs involves the use of laser rangefinders. The main disadvantage of this approach is that such systems perform poorly in conditions with bad visibility, such as in fog or heavy rain. Therefore, alternative methods need to be sought. An innovative approach to this task is presented in this paper, which describes the use of automotive three-dimensional radar on a floating platform. The goal of the study was to assess target detection possibilities based on a comparison with photogrammetric images obtained by an unmanned aerial vehicle (UAV). The scenarios considered focused on analyzing the possibility of detecting shore structures like berths, wooden jetties, and small houses, as well as natural objects like trees or other kinds of vegetation. The recording from the radar was integrated into a single complex radar image of shore targets. It was then compared with an orthophotomap prepared from AUV camera pictures, as well as with a map based on traditional land surveys. The possibility and accuracy of detection for various types of shore structure were statistically assessed. The results show good potential for the proposed approach—in general, objects can be detected using the radar—although there is a need for development of further signal processing algorithms.

Citations

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Details

Category:
Magazine publication
Type:
artykuł w czasopiśmie wyróżnionym w JCR
Published in:
ISPRS International Journal of Geo-Information no. 8, pages 1 - 19,
ISSN: 2220-9964
Language:
English
Publication year:
2019
Bibliographic description:
Andrzej S., Witold K., Burdziakowski P., Motyl W., Marta W.: Shore Construction Detection by Automotive Radar for the Needs of Autonomous Surface Vehicle Navigation// ISPRS International Journal of Geo-Information. -Vol. 8, nr. 2 (2019), s.1-19
DOI:
Digital Object Identifier (open in new tab) 10.3390/ijgi8020080
Sources of funding:
  • The project entitled “Developing of autonomous/remote operated surface platform dedicated hydrographic measurements on restricted reservoirs” was implemented as part of the National Centre for Research and Development competition, INNOSBZ.
Verification:
Gdańsk University of Technology

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