Pub Date : 2008-09-15DOI: 10.1109/OCEANS.2008.5151852
F. Jangal, Marie-Annick Giraud, M. Morel, J. Mano, A. Napoli, A. Littaye
Constant monitoring of the Exclusive Economic Zone cannot be performed only using high performance sensors. On the one hand, all available information on the observed area as juridical history of vessels or delineation of fishing zone is not necessarily measurable. On the other hand, even if the large amount of available information could be caught out they would be useless if none thorough sorting and analysis are carried on. So, we propose to sense vessel trail in Exclusive Economic Zone, to enrich the trail with the relevant non-measurable information and to use this material to classify vessel behaviors. The main issues of this approach are the selection of the relevant details which point to uncommon behaviors and the definition of the criteria which allow differentiating uncommon behavior and fraudulent one. Thus, the challenge is to deal with multidisciplinary information (i.e. bathymetry, radar tracks, insurance database, weather, etc.) and multi-domain criteria (i.e. juridical, behavioral, zonal, temporal, etc.). The architecture presented here aims to overcome both the issues.
{"title":"Sense, enrich and classify: The ScanMaris workshop for assessment of vessel's abnormal behavior in the EEZ","authors":"F. Jangal, Marie-Annick Giraud, M. Morel, J. Mano, A. Napoli, A. Littaye","doi":"10.1109/OCEANS.2008.5151852","DOIUrl":"https://doi.org/10.1109/OCEANS.2008.5151852","url":null,"abstract":"Constant monitoring of the Exclusive Economic Zone cannot be performed only using high performance sensors. On the one hand, all available information on the observed area as juridical history of vessels or delineation of fishing zone is not necessarily measurable. On the other hand, even if the large amount of available information could be caught out they would be useless if none thorough sorting and analysis are carried on. So, we propose to sense vessel trail in Exclusive Economic Zone, to enrich the trail with the relevant non-measurable information and to use this material to classify vessel behaviors. The main issues of this approach are the selection of the relevant details which point to uncommon behaviors and the definition of the criteria which allow differentiating uncommon behavior and fraudulent one. Thus, the challenge is to deal with multidisciplinary information (i.e. bathymetry, radar tracks, insurance database, weather, etc.) and multi-domain criteria (i.e. juridical, behavioral, zonal, temporal, etc.). The architecture presented here aims to overcome both the issues.","PeriodicalId":113677,"journal":{"name":"OCEANS 2008","volume":"183 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132851578","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 : 2008-09-15DOI: 10.1109/OCEANS.2008.5151937
J. Bonnel, G. Le Touzé, B. Nicolas, J. Mars, C. Gervaise
This paper presents an automatic and passive localization algorithm for low frequency impulsive sources in shallow water. This algorithm is based on the normal mode theory which characterizes propagation in this configuration. It uses specific signal processing tools and time-frequency representations to automatically extract features of the propagation. Then, it uses the dispersive properties of the oceanic waveguide as an advantage to perform the localization. Only few hydrophones are needed and neither knowledge of the oceanic environment nor simulation of the propagation is required. The proposed method is successfully applied on North Atlantic Whale gunshots in the Bay of Fundy recorded with a network of three hydrophones.
{"title":"Automatic and passive whale localization in shallow water using gunshots","authors":"J. Bonnel, G. Le Touzé, B. Nicolas, J. Mars, C. Gervaise","doi":"10.1109/OCEANS.2008.5151937","DOIUrl":"https://doi.org/10.1109/OCEANS.2008.5151937","url":null,"abstract":"This paper presents an automatic and passive localization algorithm for low frequency impulsive sources in shallow water. This algorithm is based on the normal mode theory which characterizes propagation in this configuration. It uses specific signal processing tools and time-frequency representations to automatically extract features of the propagation. Then, it uses the dispersive properties of the oceanic waveguide as an advantage to perform the localization. Only few hydrophones are needed and neither knowledge of the oceanic environment nor simulation of the propagation is required. The proposed method is successfully applied on North Atlantic Whale gunshots in the Bay of Fundy recorded with a network of three hydrophones.","PeriodicalId":113677,"journal":{"name":"OCEANS 2008","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115805064","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 : 2008-09-15DOI: 10.1109/OCEANS.2008.5151866
Naouraz Brahim, Sylvie Daniel, Didier Gueriot
Due to their involvement in several development areas (economy, industry, tourism, etc.) the maintenance and control of port infrastructure are of prime interest. Currently, quay inspection is carried out by divers using underwater cameras. Besides being time consuming, this approach displays several drawbacks: high cost, diver's insecurity and lack of precision mainly due to a lack of visibility in turbid water. Therefore, new innovative methods are required to overcome these limitations Sonar technology is a suitable alternative for quay inspection. It is a rapid and safe way to detect various defects in quay. It provides acoustic image whose quality is much higher than that of images supplied by optical means. The capability and performances of these acoustic systems still remain to be assessed. This is the focus of the proposed research work that will be addressed in this paper. The main purpose is to design and develop a method that will enable the detection and characterization of quay defects using acoustic images.
{"title":"Potential of underwater sonar systems for port infrastructure inspection","authors":"Naouraz Brahim, Sylvie Daniel, Didier Gueriot","doi":"10.1109/OCEANS.2008.5151866","DOIUrl":"https://doi.org/10.1109/OCEANS.2008.5151866","url":null,"abstract":"Due to their involvement in several development areas (economy, industry, tourism, etc.) the maintenance and control of port infrastructure are of prime interest. Currently, quay inspection is carried out by divers using underwater cameras. Besides being time consuming, this approach displays several drawbacks: high cost, diver's insecurity and lack of precision mainly due to a lack of visibility in turbid water. Therefore, new innovative methods are required to overcome these limitations Sonar technology is a suitable alternative for quay inspection. It is a rapid and safe way to detect various defects in quay. It provides acoustic image whose quality is much higher than that of images supplied by optical means. The capability and performances of these acoustic systems still remain to be assessed. This is the focus of the proposed research work that will be addressed in this paper. The main purpose is to design and develop a method that will enable the detection and characterization of quay defects using acoustic images.","PeriodicalId":113677,"journal":{"name":"OCEANS 2008","volume":"224 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116076170","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 : 2008-09-15DOI: 10.1109/OCEANS.2008.5152066
G. Eynard, C. Laot
In this paper, we propose a dominant Doppler compensation technique for single carrier single input multiple output (SIMO) underwater acoustic communication. An initial pre-processing of the dominant Doppler is used to speed up the convergence rate of the adaptive receiver at the beginning of the transmission. Then, a tracking scheme is proposed to compensate for the residual dominant Doppler. The receiver scheme is tested in an experimental context. Successful communication is demonstrated at up to 4.926 kSymb/s with a transmitting platform moving up to 1.8 m/s. The system exhibits enhanced robustness for continuous-time communication with large Doppler shifts values and time-varying multipath channels.
{"title":"Blind Doppler compensation scheme for single carrier digital underwater communications","authors":"G. Eynard, C. Laot","doi":"10.1109/OCEANS.2008.5152066","DOIUrl":"https://doi.org/10.1109/OCEANS.2008.5152066","url":null,"abstract":"In this paper, we propose a dominant Doppler compensation technique for single carrier single input multiple output (SIMO) underwater acoustic communication. An initial pre-processing of the dominant Doppler is used to speed up the convergence rate of the adaptive receiver at the beginning of the transmission. Then, a tracking scheme is proposed to compensate for the residual dominant Doppler. The receiver scheme is tested in an experimental context. Successful communication is demonstrated at up to 4.926 kSymb/s with a transmitting platform moving up to 1.8 m/s. The system exhibits enhanced robustness for continuous-time communication with large Doppler shifts values and time-varying multipath channels.","PeriodicalId":113677,"journal":{"name":"OCEANS 2008","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122083052","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 : 2008-09-15DOI: 10.1109/OCEANS.2008.5151941
R. Lefort, Ronan Fablet, J. Boucher, L. Berger, S. Bourguignon
With the human demand for fish and the global warming effects, we know that marine populations are changing. Developing methods for observing and analyzing the spatio-temporal variations of marine ecosystems is then of primary importance. In this context, underwater acoustics remote sensing has a great potential. Operational systems mainly rely on expert interpretation of echograms acquired by sonar echosounders. In this works, we propose new algorithms for the analysis of acoustic survey regarding the inference of species mixing proportion. They rely on the definition and training of probabilistic school classification models from survey data.
{"title":"Automatic fish school classification for acoustic sensing of marine ecosystem","authors":"R. Lefort, Ronan Fablet, J. Boucher, L. Berger, S. Bourguignon","doi":"10.1109/OCEANS.2008.5151941","DOIUrl":"https://doi.org/10.1109/OCEANS.2008.5151941","url":null,"abstract":"With the human demand for fish and the global warming effects, we know that marine populations are changing. Developing methods for observing and analyzing the spatio-temporal variations of marine ecosystems is then of primary importance. In this context, underwater acoustics remote sensing has a great potential. Operational systems mainly rely on expert interpretation of echograms acquired by sonar echosounders. In this works, we propose new algorithms for the analysis of acoustic survey regarding the inference of species mixing proportion. They rely on the definition and training of probabilistic school classification models from survey data.","PeriodicalId":113677,"journal":{"name":"OCEANS 2008","volume":"229 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126567276","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 : 2008-09-15DOI: 10.1109/OCEANS.2008.5151958
G. Llort-Pujol, C. Sintes, D. Guériot
Underwater bathymetry applications are based on the estimation of the echoed target spatial coordinates in order to map the sea bottom. A quick and reliable approach consists in carrying out the interferometry method. This direction-finding technique estimates the arrival angle of backscattered signals through the propagation time delay between two close sensors. This time delay can be determined from the phase difference between signals received by each sensor, but its value is limited to a 2pi-length interval due to the computation of the complex argument operator. As the effective phase difference may exceed this range, according to spacing between sensors, a 2pi rotation counter may be introduced within the direction-finding signal processing in order to remove the phase ambiguity. This paper introduces the Vernier principle in order to remove the 2pi-phase ambiguity, enhancing the main assets and analyzing the best interferometer configuration to minimize the drawbacks. Mastering this technique allows the use of individual phase-angle samples for both sidescan sonars and multibeam echo-sounders, thus increasing the target detection capabilities by bringing out an image-like bathymetric resolution.
{"title":"Analysis of Vernier interferometers for sonar bathymetry","authors":"G. Llort-Pujol, C. Sintes, D. Guériot","doi":"10.1109/OCEANS.2008.5151958","DOIUrl":"https://doi.org/10.1109/OCEANS.2008.5151958","url":null,"abstract":"Underwater bathymetry applications are based on the estimation of the echoed target spatial coordinates in order to map the sea bottom. A quick and reliable approach consists in carrying out the interferometry method. This direction-finding technique estimates the arrival angle of backscattered signals through the propagation time delay between two close sensors. This time delay can be determined from the phase difference between signals received by each sensor, but its value is limited to a 2pi-length interval due to the computation of the complex argument operator. As the effective phase difference may exceed this range, according to spacing between sensors, a 2pi rotation counter may be introduced within the direction-finding signal processing in order to remove the phase ambiguity. This paper introduces the Vernier principle in order to remove the 2pi-phase ambiguity, enhancing the main assets and analyzing the best interferometer configuration to minimize the drawbacks. Mastering this technique allows the use of individual phase-angle samples for both sidescan sonars and multibeam echo-sounders, thus increasing the target detection capabilities by bringing out an image-like bathymetric resolution.","PeriodicalId":113677,"journal":{"name":"OCEANS 2008","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122666082","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 : 2008-09-11DOI: 10.1109/OCEANS.2008.5152016
I. Karoui, Ronan Fablet, J. Boucher
We propose a new method for the estimation of fish abundance from both acoustic data and some trawl hauls catches. In this work, we operate at a global level and we aim at estimating fish abundance from these images and not to identify the species of each school. We associate each trawl catch to the nearest acoustic image and we describe each image by a set of global statistical distributions estimated on it and related to each school parameters. Then, we use the fast marching algorithm, a front propagation based scheme to define a region of interest around each trawl associated image. The fast marching algorithm propagates each front initialized on the image associated to the trawl samples with a velocity proportional to the distance between the trawl image acoustic features and those of the image for which we want to estimate the fish abundance. Finally, the fish abundance of each image is estimated as a weighted sum of the abundances associated to each trawl. The weights are estimated from the propagation time given by the fast marching algorithm. The method is experimented on real and synthetic data.
{"title":"Fast marching and acoustic descriptors based method for fish proportion interpolation","authors":"I. Karoui, Ronan Fablet, J. Boucher","doi":"10.1109/OCEANS.2008.5152016","DOIUrl":"https://doi.org/10.1109/OCEANS.2008.5152016","url":null,"abstract":"We propose a new method for the estimation of fish abundance from both acoustic data and some trawl hauls catches. In this work, we operate at a global level and we aim at estimating fish abundance from these images and not to identify the species of each school. We associate each trawl catch to the nearest acoustic image and we describe each image by a set of global statistical distributions estimated on it and related to each school parameters. Then, we use the fast marching algorithm, a front propagation based scheme to define a region of interest around each trawl associated image. The fast marching algorithm propagates each front initialized on the image associated to the trawl samples with a velocity proportional to the distance between the trawl image acoustic features and those of the image for which we want to estimate the fish abundance. Finally, the fish abundance of each image is estimated as a weighted sum of the abundances associated to each trawl. The weights are estimated from the propagation time given by the fast marching algorithm. The method is experimented on real and synthetic data.","PeriodicalId":113677,"journal":{"name":"OCEANS 2008","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133514113","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 : 2008-09-01DOI: 10.1109/OCEANS.2008.5151897
Ali Abdi, H. Guo
A vector sensor measures the scalar and vector components of the acoustic field. Depending on the angle of arrivals and other channel characteristics, different types of correlation appear in a vector sensor array. These correlations affect the performance of a vector sensor communication system. In this paper a new statistical-geometrical framework is developed that provides parametric correlation formulas. These signal correlation expressions are useful for the design and performance analysis of vector sensor communication systems and signal processing algorithms. They can also be useful for estimating some important parameters of the channel such as angle spreads and angle of arrivals. Comparison of the proposed correlation model with experimental data illustrates the usefulness of the model.
{"title":"A correlation model for vector sensor arrays in underwater communication systems","authors":"Ali Abdi, H. Guo","doi":"10.1109/OCEANS.2008.5151897","DOIUrl":"https://doi.org/10.1109/OCEANS.2008.5151897","url":null,"abstract":"A vector sensor measures the scalar and vector components of the acoustic field. Depending on the angle of arrivals and other channel characteristics, different types of correlation appear in a vector sensor array. These correlations affect the performance of a vector sensor communication system. In this paper a new statistical-geometrical framework is developed that provides parametric correlation formulas. These signal correlation expressions are useful for the design and performance analysis of vector sensor communication systems and signal processing algorithms. They can also be useful for estimating some important parameters of the channel such as angle spreads and angle of arrivals. Comparison of the proposed correlation model with experimental data illustrates the usefulness of the model.","PeriodicalId":113677,"journal":{"name":"OCEANS 2008","volume":"40 7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124418022","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 : 2008-09-01DOI: 10.1109/OCEANS.2008.5151986
J. Holler, S. Longfield, K. Murphy, A. Striz, B. Bingham
For the past two years undergraduate engineering students from Olin College of Engineering have worked to develop unmanned surface vehicles as low cost educational platforms for scientific research. As an undergraduate project, the work on the USV involved the student team in a hands-on experience that included in-house design, fabrication, and field operations. Working dominantly out of the Olin Field Robotics Laboratory the first fully operational vehicle completed an unmanned field test in the spring of 2008. Previously in 2007, two students from this project team presented the academic benefits of this self-directed work for engineering and science education at the MTS/IEEE Ocean's Conference in Vancouver. Here we present the data collected from the first autonomous trials carried out by the vehicle as well as the continued work since the Oceans 2007 publication. This work includes the completion of the mechanical design, creation and verification of a mathematical model of the vehicle, and implementation of autonomous control. Lastly, this paper continues to testify to the core benefits of an unmanned vehicle as an undergraduate engineering project, leading not only a to viable vehicle platform but also an extremely valuable learning experience for the team involved.
{"title":"Unmanned surface vehicles for undergraduate engineering education","authors":"J. Holler, S. Longfield, K. Murphy, A. Striz, B. Bingham","doi":"10.1109/OCEANS.2008.5151986","DOIUrl":"https://doi.org/10.1109/OCEANS.2008.5151986","url":null,"abstract":"For the past two years undergraduate engineering students from Olin College of Engineering have worked to develop unmanned surface vehicles as low cost educational platforms for scientific research. As an undergraduate project, the work on the USV involved the student team in a hands-on experience that included in-house design, fabrication, and field operations. Working dominantly out of the Olin Field Robotics Laboratory the first fully operational vehicle completed an unmanned field test in the spring of 2008. Previously in 2007, two students from this project team presented the academic benefits of this self-directed work for engineering and science education at the MTS/IEEE Ocean's Conference in Vancouver. Here we present the data collected from the first autonomous trials carried out by the vehicle as well as the continued work since the Oceans 2007 publication. This work includes the completion of the mechanical design, creation and verification of a mathematical model of the vehicle, and implementation of autonomous control. Lastly, this paper continues to testify to the core benefits of an unmanned vehicle as an undergraduate engineering project, leading not only a to viable vehicle platform but also an extremely valuable learning experience for the team involved.","PeriodicalId":113677,"journal":{"name":"OCEANS 2008","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127286151","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 : 2008-09-01DOI: 10.1109/OCEANS.2008.5152039
A. Barbieri, G. Caire, U. Mitra
Orthogonal Frequency Division Multiplexing (OFDM) is receiving increased interest for use in underwater acoustic communication systems. It is well-known that OFDM decomposes linear time-invariant channels into a set of parallel (non-interfering) channels via a Fourier basis. However, underwater acoustic communication channels can suffer from significant Doppler effects; for time-varying channels, inter-channel interference occurs and may have a dramatic impact on the performance. Doubly-selective channels and block-based transmissions are examined. In contrast to much work on pulse shape design, a signal-to-interference plus noise ratio metric is considered as the metric for waveform design. Prior work is extended through the use of an alternate view of the cost function which is easier to optimize and yields improved results at high SNR. Numerical results on the mutual information reveal significant gains over classical zero-padded OFDM and the pulse shape designs of Lattice OFDM.
{"title":"Transmit/receive filter optimization for doubly-selective underwater acoustic channels","authors":"A. Barbieri, G. Caire, U. Mitra","doi":"10.1109/OCEANS.2008.5152039","DOIUrl":"https://doi.org/10.1109/OCEANS.2008.5152039","url":null,"abstract":"Orthogonal Frequency Division Multiplexing (OFDM) is receiving increased interest for use in underwater acoustic communication systems. It is well-known that OFDM decomposes linear time-invariant channels into a set of parallel (non-interfering) channels via a Fourier basis. However, underwater acoustic communication channels can suffer from significant Doppler effects; for time-varying channels, inter-channel interference occurs and may have a dramatic impact on the performance. Doubly-selective channels and block-based transmissions are examined. In contrast to much work on pulse shape design, a signal-to-interference plus noise ratio metric is considered as the metric for waveform design. Prior work is extended through the use of an alternate view of the cost function which is easier to optimize and yields improved results at high SNR. Numerical results on the mutual information reveal significant gains over classical zero-padded OFDM and the pulse shape designs of Lattice OFDM.","PeriodicalId":113677,"journal":{"name":"OCEANS 2008","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125139665","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}
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