Pub Date : 2018-05-28DOI: 10.1109/OCEANSKOBE.2018.8559047
Xue Cheng, Yingmin Wang
Direction of Arrival (DOA) for multiple-input multiple-output sonar is considered. A high dimensional matrix by matched filter can be obtained in the receive array, when we directly apply traditional algorithm to MIMO Sonar. This matrix loss the original incoherence, and produces higher computational complexity. In this paper, reduced-complex multiple signal classification (MUSIC) based on Toeplitz reconstruction (TRC-MUSIC) is proposed. This algorithm can reduce the dimension of operation effectively, avoid degrees of freedom (DOFs) and virtual array aperture loss by traditional decorrelation algorithm. We can obtain better location performance in the situation of low signal-to-noise ratio (SNR) and lower snapshots. Simulation results show the usefulness of the proposed algorithm. The TRC-MUSIC method can provide more accurate location and better stability, suppress noise effectively in low snapshots.
{"title":"A Reduced-Complex Method Based on Toeplitz Reconstruction for Direction of Arrival Estimation in Multiple-Input Multiple-Output Sonar","authors":"Xue Cheng, Yingmin Wang","doi":"10.1109/OCEANSKOBE.2018.8559047","DOIUrl":"https://doi.org/10.1109/OCEANSKOBE.2018.8559047","url":null,"abstract":"Direction of Arrival (DOA) for multiple-input multiple-output sonar is considered. A high dimensional matrix by matched filter can be obtained in the receive array, when we directly apply traditional algorithm to MIMO Sonar. This matrix loss the original incoherence, and produces higher computational complexity. In this paper, reduced-complex multiple signal classification (MUSIC) based on Toeplitz reconstruction (TRC-MUSIC) is proposed. This algorithm can reduce the dimension of operation effectively, avoid degrees of freedom (DOFs) and virtual array aperture loss by traditional decorrelation algorithm. We can obtain better location performance in the situation of low signal-to-noise ratio (SNR) and lower snapshots. Simulation results show the usefulness of the proposed algorithm. The TRC-MUSIC method can provide more accurate location and better stability, suppress noise effectively in low snapshots.","PeriodicalId":441405,"journal":{"name":"2018 OCEANS - MTS/IEEE Kobe Techno-Oceans (OTO)","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130513769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-05-28DOI: 10.1109/OCEANSKOBE.2018.8559126
Seokyong Song, Byeongjin Kim, Juhwan Kim, Son-cheol Yu
We propose a method of evaluating reliability of optical image and acoustic image for localization of AUV in real time. Some studies about SLAM using vision or an imaging sonar have been suggested, but both sensors have their own advantageous cases. Using proposed method, AUV switches the utilizing sensor in appropriate case in real time, and always navigates with the most useful sensor. We defined each reliability value of optical and acoustic images using the number of features. We acquired image pairs in seawater and water tank with AUV Cyclops. Using linear discriminant analysis, the parameters to compare their reliability values were found. We compared the results depending on the experiment conditions, and then checked the processing time.
{"title":"Real-Time Reliability Evaluation of Optical and Acoustic Images for Feature-Based Localization of AUV","authors":"Seokyong Song, Byeongjin Kim, Juhwan Kim, Son-cheol Yu","doi":"10.1109/OCEANSKOBE.2018.8559126","DOIUrl":"https://doi.org/10.1109/OCEANSKOBE.2018.8559126","url":null,"abstract":"We propose a method of evaluating reliability of optical image and acoustic image for localization of AUV in real time. Some studies about SLAM using vision or an imaging sonar have been suggested, but both sensors have their own advantageous cases. Using proposed method, AUV switches the utilizing sensor in appropriate case in real time, and always navigates with the most useful sensor. We defined each reliability value of optical and acoustic images using the number of features. We acquired image pairs in seawater and water tank with AUV Cyclops. Using linear discriminant analysis, the parameters to compare their reliability values were found. We compared the results depending on the experiment conditions, and then checked the processing time.","PeriodicalId":441405,"journal":{"name":"2018 OCEANS - MTS/IEEE Kobe Techno-Oceans (OTO)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131060146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-05-28DOI: 10.1109/OCEANSKOBE.2018.8559237
A. Want, R. Harris, J. Porter
Generating electricity from marine energy is a globally important industry and forms a vital part of several nations' objectives to decarbonise energy production. In the UK, the resource-rich waters around Scotland have led to world-leading developments of facilities and supporting infrastructure used in deploying and testing wave and tidal energy technologies. A major concern to industries working in the marine environment is biofouling on submerged structures, including energy converters and measurement instrumentation. In this study, marine energy devices, infrastructure, and instrumentation were surveyed to characterise biofouling organisms. Fouling communities varied between deployment habitats; key organisms were identified allowing recommendations for scheduling device maintenance and preventing spread of invasive species. A method to measure biofouling impact on hydrodynamic response is described and applied to data from a wave-monitoring buoy deployed at a test site in Scotland. Results are discussed in relation to measurement accuracy of resources for power generation. Further applications are suggested for future testing in other scenarios including habitats use for extracting tidal energy.
{"title":"Biodiversity Characterisation of Fouling Communities and Their Hydrodynamic Consequences on Marine Renewable Energy Infrastructure in the UK","authors":"A. Want, R. Harris, J. Porter","doi":"10.1109/OCEANSKOBE.2018.8559237","DOIUrl":"https://doi.org/10.1109/OCEANSKOBE.2018.8559237","url":null,"abstract":"Generating electricity from marine energy is a globally important industry and forms a vital part of several nations' objectives to decarbonise energy production. In the UK, the resource-rich waters around Scotland have led to world-leading developments of facilities and supporting infrastructure used in deploying and testing wave and tidal energy technologies. A major concern to industries working in the marine environment is biofouling on submerged structures, including energy converters and measurement instrumentation. In this study, marine energy devices, infrastructure, and instrumentation were surveyed to characterise biofouling organisms. Fouling communities varied between deployment habitats; key organisms were identified allowing recommendations for scheduling device maintenance and preventing spread of invasive species. A method to measure biofouling impact on hydrodynamic response is described and applied to data from a wave-monitoring buoy deployed at a test site in Scotland. Results are discussed in relation to measurement accuracy of resources for power generation. Further applications are suggested for future testing in other scenarios including habitats use for extracting tidal energy.","PeriodicalId":441405,"journal":{"name":"2018 OCEANS - MTS/IEEE Kobe Techno-Oceans (OTO)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133563856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-05-28DOI: 10.1109/OCEANSKOBE.2018.8559094
Juhwan Kim, Seokyong Song, Minsung Sung, Son-cheol Yu
We conducted efficient underwater manipulation that can lift heavy weight or perform simple tasks. We developed manipulation purposed small agent vehicle with gripper, flops and sensors. With the winch system, the lifting force of weight is empowered. The agent has independent navigation and object detection abilities, then only winding up winch signal is needed. This system is useful for use in areas where large underwater robots are difficult to access. We called this system as agent vehicle manipulation system. Finally, we accomplished the stand alone experiment of manipulation system in a water tank. The agent autonomously found such object, and lifted up to surface. The system verified the results of manipulation that can successfully bring the object.
{"title":"Development of Manipulation Purpose Small Agent Vehicle for UUVs","authors":"Juhwan Kim, Seokyong Song, Minsung Sung, Son-cheol Yu","doi":"10.1109/OCEANSKOBE.2018.8559094","DOIUrl":"https://doi.org/10.1109/OCEANSKOBE.2018.8559094","url":null,"abstract":"We conducted efficient underwater manipulation that can lift heavy weight or perform simple tasks. We developed manipulation purposed small agent vehicle with gripper, flops and sensors. With the winch system, the lifting force of weight is empowered. The agent has independent navigation and object detection abilities, then only winding up winch signal is needed. This system is useful for use in areas where large underwater robots are difficult to access. We called this system as agent vehicle manipulation system. Finally, we accomplished the stand alone experiment of manipulation system in a water tank. The agent autonomously found such object, and lifted up to surface. The system verified the results of manipulation that can successfully bring the object.","PeriodicalId":441405,"journal":{"name":"2018 OCEANS - MTS/IEEE Kobe Techno-Oceans (OTO)","volume":"225 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132293257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-05-28DOI: 10.1109/OCEANSKOBE.2018.8559090
Chunlong Huang, Kunde Yang, Yuanliang Ma, Quan Sun
The sea waves can make sonobuoy vibrate in the vertical direction. The vibration can create flow noise which will affect the work performance of the sonobuoy. It can be suppressed by adding flexible cable to the structure of the sonobuoy. In this paper, we first establish a theoretical model used in calculating the flow noise of sonobuoy to analyze the corresponding relationship between the flow noise and the vibration velocity. Then we establish a forced vibration model of the sonobuoy to analyze the effect of flexible cable on suppressing flow noise caused by vibration of the sonobuoy. According to the simulation results calculated by the flow noise theoretical calculation model, we find that the spectrum level of the flow noise increases with the increase of the flow velocity. According to the simulation result calculated by the sonobuoy vibration model, we find that choosing an appropriate elastic coefficient for the flexible cable can effectively suppress the vibration of the sonobuoy caused by the sea waves. As a consequence, the flow noise of the sonobuoy can be reduced effectively.
{"title":"Flow Noise Calculation and Suppression for Sonobuoy","authors":"Chunlong Huang, Kunde Yang, Yuanliang Ma, Quan Sun","doi":"10.1109/OCEANSKOBE.2018.8559090","DOIUrl":"https://doi.org/10.1109/OCEANSKOBE.2018.8559090","url":null,"abstract":"The sea waves can make sonobuoy vibrate in the vertical direction. The vibration can create flow noise which will affect the work performance of the sonobuoy. It can be suppressed by adding flexible cable to the structure of the sonobuoy. In this paper, we first establish a theoretical model used in calculating the flow noise of sonobuoy to analyze the corresponding relationship between the flow noise and the vibration velocity. Then we establish a forced vibration model of the sonobuoy to analyze the effect of flexible cable on suppressing flow noise caused by vibration of the sonobuoy. According to the simulation results calculated by the flow noise theoretical calculation model, we find that the spectrum level of the flow noise increases with the increase of the flow velocity. According to the simulation result calculated by the sonobuoy vibration model, we find that choosing an appropriate elastic coefficient for the flexible cable can effectively suppress the vibration of the sonobuoy caused by the sea waves. As a consequence, the flow noise of the sonobuoy can be reduced effectively.","PeriodicalId":441405,"journal":{"name":"2018 OCEANS - MTS/IEEE Kobe Techno-Oceans (OTO)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130868649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-05-28DOI: 10.1109/OCEANSKOBE.2018.8558802
José Pinto, R. Mendes, J. da Silva, J. Dias, J. D. de Sousa
This paper presents a novel approach for studying riverine plumes. It combines remote-sensing with autonomous in-situ observations performed by a set of unmanned vehicles (underwater and aerial). While an aerial drone is remotely piloted to detect the plume from air, multiple underwater vehicles autonomously detect the plume edge and map their structure by traversing it multiple times, autonomously. This approach has been used multiple times to acquire the 3D structure of the Douro river plume, in Porto.
{"title":"Multiple Autonomous Vehicles Applied to Plume Detection and Tracking","authors":"José Pinto, R. Mendes, J. da Silva, J. Dias, J. D. de Sousa","doi":"10.1109/OCEANSKOBE.2018.8558802","DOIUrl":"https://doi.org/10.1109/OCEANSKOBE.2018.8558802","url":null,"abstract":"This paper presents a novel approach for studying riverine plumes. It combines remote-sensing with autonomous in-situ observations performed by a set of unmanned vehicles (underwater and aerial). While an aerial drone is remotely piloted to detect the plume from air, multiple underwater vehicles autonomously detect the plume edge and map their structure by traversing it multiple times, autonomously. This approach has been used multiple times to acquire the 3D structure of the Douro river plume, in Porto.","PeriodicalId":441405,"journal":{"name":"2018 OCEANS - MTS/IEEE Kobe Techno-Oceans (OTO)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130885450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-05-28DOI: 10.1109/OCEANSKOBE.2018.8559262
R. Petroccia, J. Sliwka, A. Grati, V. Grandi, P. Guerrini, A. Munafò, Marin Stipanov, J. Alves, R. Been
This paper presents the experimental activities performed by the NATO STO Centre for Maritime Research and Experimentation (CMRE) during the CommsNet17 trial where a persistent Underwater Acoustic Sensor Network (UASN) was deployed. The CommsNet17 trial was held from the 27th of November to the 6th of December in the Gulf of La Spezia (IT), close to the CMRE premises, using the CMRE Littoral Ocean Observatory Network (LOON) as one of its key components. A network consisting of up to eleven nodes was deployed, including static and mobile assets. Various aspects related to persistent UASNs were addressed, including autonomous and distributed network discovery and node configuration, node localisation and navigation, self-adjustment of the network topology in support to the assigned tasks, underwater docking, wireless battery recharging and data offloading. The collected results show that the employed solutions were able to successfully complete all these tasks, thus demonstrating the effective deployment of a persistent, distributed and ad-hoc UASN.
{"title":"Deployment of a Persistent Underwater Acoustic Sensor Network: The CommsNet17 Experience","authors":"R. Petroccia, J. Sliwka, A. Grati, V. Grandi, P. Guerrini, A. Munafò, Marin Stipanov, J. Alves, R. Been","doi":"10.1109/OCEANSKOBE.2018.8559262","DOIUrl":"https://doi.org/10.1109/OCEANSKOBE.2018.8559262","url":null,"abstract":"This paper presents the experimental activities performed by the NATO STO Centre for Maritime Research and Experimentation (CMRE) during the CommsNet17 trial where a persistent Underwater Acoustic Sensor Network (UASN) was deployed. The CommsNet17 trial was held from the 27th of November to the 6th of December in the Gulf of La Spezia (IT), close to the CMRE premises, using the CMRE Littoral Ocean Observatory Network (LOON) as one of its key components. A network consisting of up to eleven nodes was deployed, including static and mobile assets. Various aspects related to persistent UASNs were addressed, including autonomous and distributed network discovery and node configuration, node localisation and navigation, self-adjustment of the network topology in support to the assigned tasks, underwater docking, wireless battery recharging and data offloading. The collected results show that the employed solutions were able to successfully complete all these tasks, thus demonstrating the effective deployment of a persistent, distributed and ad-hoc UASN.","PeriodicalId":441405,"journal":{"name":"2018 OCEANS - MTS/IEEE Kobe Techno-Oceans (OTO)","volume":"128 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129384780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-05-28DOI: 10.1109/OCEANSKOBE.2018.8559349
Y. Nakajima, J. Yamamoto, Tomoko Takahashi, B. Thornton, Gjergj Dodbiba, T. Fujita
This paper describes experimental works to apply Laser-Induced Breakdown Spectroscopy (LIBS) for in-situ measurement of the metal grade of ore particles handled in seafloor mineral processing system for seafloor massive sulfides. LIBS measurements of ore particles containing metallic elements in slurry were performed, where ore slurry was circulated through a chamber mounted on the optical probe of a LIBS device. The chamber was positioned to set the focal point of laser from the LIBS device at the center of the tubular space in the chamber, where the slurry runs. Analytically useful LIBS spectra were obtained from the slurry with enough slurry concentration. While relatively strong LIBS signals assigned to major elements appeared in many spectra, sharp LIBS signals assigned to minor elements appeared in a spectrum. Individual ore particles are not homogeneous even though they are prepared from single ore. The results suggest that multiple measurements are required to assess the metal grade in the seafloor mineral processing system.
{"title":"Measurement of Metal Grade of Ore Particles in Slurry Using Laser-Induced Breakdown Spectroscopy","authors":"Y. Nakajima, J. Yamamoto, Tomoko Takahashi, B. Thornton, Gjergj Dodbiba, T. Fujita","doi":"10.1109/OCEANSKOBE.2018.8559349","DOIUrl":"https://doi.org/10.1109/OCEANSKOBE.2018.8559349","url":null,"abstract":"This paper describes experimental works to apply Laser-Induced Breakdown Spectroscopy (LIBS) for in-situ measurement of the metal grade of ore particles handled in seafloor mineral processing system for seafloor massive sulfides. LIBS measurements of ore particles containing metallic elements in slurry were performed, where ore slurry was circulated through a chamber mounted on the optical probe of a LIBS device. The chamber was positioned to set the focal point of laser from the LIBS device at the center of the tubular space in the chamber, where the slurry runs. Analytically useful LIBS spectra were obtained from the slurry with enough slurry concentration. While relatively strong LIBS signals assigned to major elements appeared in many spectra, sharp LIBS signals assigned to minor elements appeared in a spectrum. Individual ore particles are not homogeneous even though they are prepared from single ore. The results suggest that multiple measurements are required to assess the metal grade in the seafloor mineral processing system.","PeriodicalId":441405,"journal":{"name":"2018 OCEANS - MTS/IEEE Kobe Techno-Oceans (OTO)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129893968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-05-28DOI: 10.1109/OCEANSKOBE.2018.8559246
Zhenyu Jia, Fei Yuan, Keyu Chen, En Cheng, Jianghui Li
Underwater acoustic (UWA) channels are characterized by narrow-band, time-varying, and strong multipath interference. At the same time, Doppler effect also has a significant impact in UWA communications due to low sound speed in water. Therefore, traditional wireless multiple access technology cannot be used directly underwater. However, by combining some existing technologies in underwater communications, the traditional multiple access method can be improved to enable underwater multiple access. In this paper, we introduced chirp signals as carriers, which is widely used in UWA communications. Combined with code division multiple access (CDMA) and orthogonal frequency division multiple access (OFDMA) techniques, a multi-carrier chirp signal based CDMA method is proposed, which improves the reliability and spectrum efficiency of underwater multiple access. The simulation results show that the proposed method has good Bit error rate (BER) performance. Further, the method is also able to achieve good BER performance under the influence of Doppler effect because chirp signals is capable of resisting Doppler effects.
{"title":"Research on Code Division Multiple Access Based on Chirp Multi-Carrier","authors":"Zhenyu Jia, Fei Yuan, Keyu Chen, En Cheng, Jianghui Li","doi":"10.1109/OCEANSKOBE.2018.8559246","DOIUrl":"https://doi.org/10.1109/OCEANSKOBE.2018.8559246","url":null,"abstract":"Underwater acoustic (UWA) channels are characterized by narrow-band, time-varying, and strong multipath interference. At the same time, Doppler effect also has a significant impact in UWA communications due to low sound speed in water. Therefore, traditional wireless multiple access technology cannot be used directly underwater. However, by combining some existing technologies in underwater communications, the traditional multiple access method can be improved to enable underwater multiple access. In this paper, we introduced chirp signals as carriers, which is widely used in UWA communications. Combined with code division multiple access (CDMA) and orthogonal frequency division multiple access (OFDMA) techniques, a multi-carrier chirp signal based CDMA method is proposed, which improves the reliability and spectrum efficiency of underwater multiple access. The simulation results show that the proposed method has good Bit error rate (BER) performance. Further, the method is also able to achieve good BER performance under the influence of Doppler effect because chirp signals is capable of resisting Doppler effects.","PeriodicalId":441405,"journal":{"name":"2018 OCEANS - MTS/IEEE Kobe Techno-Oceans (OTO)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129469202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-05-28DOI: 10.1109/OCEANSKOBE.2018.8559461
Yishan Su, Yongpeng Zuo, Yun Li, Zhigang Jin, Xiaomei Fu
During the past decade, the research of underwater acoustic sensors network have gained significant progress. With the deployment of UASNs, the acquisition and long-range transmission of underwater data becomes a challenge. Traditionally, the data from underwater sensors can be sent to terrestrial control center mainly by VHF (very high frequency) or satellite communication systems. However, a VHF communication system can only cover the area with a distance of 15-30km and a satellite communication system may cost a lot especially for a long-time-deployed sensor network. To effectively evaluate the performance of underwater networks and further transmit underwater data from open sea, in this paper, we develop an underwater data acquisition and transmission testbed based on BeiDou Satellite System (BDS) and underwater acoustic communication technology. With the help of the proposed testbed, we can conduct various tests including protocols evaluations and underwater application developments.
{"title":"An Underwater Data Acquisition and Transmission Testbed Based on BeiDou Satellite System (BDS) and Underwater Acoustic Communication Technology","authors":"Yishan Su, Yongpeng Zuo, Yun Li, Zhigang Jin, Xiaomei Fu","doi":"10.1109/OCEANSKOBE.2018.8559461","DOIUrl":"https://doi.org/10.1109/OCEANSKOBE.2018.8559461","url":null,"abstract":"During the past decade, the research of underwater acoustic sensors network have gained significant progress. With the deployment of UASNs, the acquisition and long-range transmission of underwater data becomes a challenge. Traditionally, the data from underwater sensors can be sent to terrestrial control center mainly by VHF (very high frequency) or satellite communication systems. However, a VHF communication system can only cover the area with a distance of 15-30km and a satellite communication system may cost a lot especially for a long-time-deployed sensor network. To effectively evaluate the performance of underwater networks and further transmit underwater data from open sea, in this paper, we develop an underwater data acquisition and transmission testbed based on BeiDou Satellite System (BDS) and underwater acoustic communication technology. With the help of the proposed testbed, we can conduct various tests including protocols evaluations and underwater application developments.","PeriodicalId":441405,"journal":{"name":"2018 OCEANS - MTS/IEEE Kobe Techno-Oceans (OTO)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132724360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：