Pub Date : 1991-11-04DOI: 10.1109/MILCOM.1991.258440
G. M. Lundy, O. Kvaslerud
The authors investigate the possibility of replacing the current communication network for the Aegis real-time combat system aboard naval ships with a dual optical fiber ring. This network will then connect all sensors, weapons, electronic equipment, and computers into a single communication network, possessing a simple topology, higher data transfer capability, and security. It is expected that the communication network will also satisfy the needs of the next-generation surface combatant. The future system is expected to build upon the current Aegis combat system architecture, becoming more complex but remaining a well-integrated and easily operable combat system. The high-speed network based on FDDI (Fiber Distributed Data Interface) can satisfy the demand for more bandwidth, integrating both real-time and other communication services aboard a ship. It is argued that FDDI can not only successfully replace current communications in a ship's combat system, but can also provide much better service.<>
{"title":"Improving the Aegis combat system with high speed networks","authors":"G. M. Lundy, O. Kvaslerud","doi":"10.1109/MILCOM.1991.258440","DOIUrl":"https://doi.org/10.1109/MILCOM.1991.258440","url":null,"abstract":"The authors investigate the possibility of replacing the current communication network for the Aegis real-time combat system aboard naval ships with a dual optical fiber ring. This network will then connect all sensors, weapons, electronic equipment, and computers into a single communication network, possessing a simple topology, higher data transfer capability, and security. It is expected that the communication network will also satisfy the needs of the next-generation surface combatant. The future system is expected to build upon the current Aegis combat system architecture, becoming more complex but remaining a well-integrated and easily operable combat system. The high-speed network based on FDDI (Fiber Distributed Data Interface) can satisfy the demand for more bandwidth, integrating both real-time and other communication services aboard a ship. It is argued that FDDI can not only successfully replace current communications in a ship's combat system, but can also provide much better service.<<ETX>>","PeriodicalId":212388,"journal":{"name":"MILCOM 91 - Conference record","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116677731","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 : 1991-11-04DOI: 10.1109/MILCOM.1991.258208
P.D. Rizik, N. O. Welch
The authors describe the development of an artificial intelligence (AI) model. XTEL 2.0 is an architecture solution system that recommends specific node hardening and protection, specific link protection and transition, and specific leasing with allied host nation systems. Where users enter desired architecture preferences, XTEL 2.0 generates feasible transition states for network components using a rule base, and expresses them as variables in mathematical equations that represent preference boundaries and architecture constraints. Because these mathematics equations are simple linear equations, they are solved using a linear programming framework so that a quick architecture resource allocation can be performed.<>
{"title":"XTEL 2.0: a rule based systems analysis of theater level C/sup 3/ architectures","authors":"P.D. Rizik, N. O. Welch","doi":"10.1109/MILCOM.1991.258208","DOIUrl":"https://doi.org/10.1109/MILCOM.1991.258208","url":null,"abstract":"The authors describe the development of an artificial intelligence (AI) model. XTEL 2.0 is an architecture solution system that recommends specific node hardening and protection, specific link protection and transition, and specific leasing with allied host nation systems. Where users enter desired architecture preferences, XTEL 2.0 generates feasible transition states for network components using a rule base, and expresses them as variables in mathematical equations that represent preference boundaries and architecture constraints. Because these mathematics equations are simple linear equations, they are solved using a linear programming framework so that a quick architecture resource allocation can be performed.<<ETX>>","PeriodicalId":212388,"journal":{"name":"MILCOM 91 - Conference record","volume":"54 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120823765","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 : 1991-11-04DOI: 10.1109/MILCOM.1991.258259
P. M. Jones
A practical application of interoperability, the Icelandic Air Defense System (IADS), is introduced. The author presents an overview of IADS followed by an explanation of its operations concept and the resulting data link connectivity. He then summarizes with a review of interoperability improvements provided by IADS and provides some insight into challenge for the future. The data links required to support the IADS mission are depicted. IADS is required to interface using 11 different data link formats with the option of adding three or more formats as growth.<>
{"title":"IADS-an application in interoperability","authors":"P. M. Jones","doi":"10.1109/MILCOM.1991.258259","DOIUrl":"https://doi.org/10.1109/MILCOM.1991.258259","url":null,"abstract":"A practical application of interoperability, the Icelandic Air Defense System (IADS), is introduced. The author presents an overview of IADS followed by an explanation of its operations concept and the resulting data link connectivity. He then summarizes with a review of interoperability improvements provided by IADS and provides some insight into challenge for the future. The data links required to support the IADS mission are depicted. IADS is required to interface using 11 different data link formats with the option of adding three or more formats as growth.<<ETX>>","PeriodicalId":212388,"journal":{"name":"MILCOM 91 - Conference record","volume":"428 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115999283","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 : 1991-11-04DOI: 10.1109/MILCOM.1991.258304
G. Hegde, S.R. Muthangi, V. Paulraj, A. Paulraj
The authors propose a shipwide local area network (LAN) to integrate weapons, sensors, command and control, external/ internal communications, and damage control. They describe a two-stage hierarchical network with the fiber distributed data interface (FDDI) as a backbone to interconnect diverse systems on the ship. The standard configuration management (CFM) of FDDI has been suitably modified to evolve a BY-PASS architecture that can survive loss of multiple network components. Performance of the modified network in terms of delay characteristics for voice, data, and video is presented along with its survivability analysis.<>
{"title":"FDDI-a high speed data highway for warship system integration","authors":"G. Hegde, S.R. Muthangi, V. Paulraj, A. Paulraj","doi":"10.1109/MILCOM.1991.258304","DOIUrl":"https://doi.org/10.1109/MILCOM.1991.258304","url":null,"abstract":"The authors propose a shipwide local area network (LAN) to integrate weapons, sensors, command and control, external/ internal communications, and damage control. They describe a two-stage hierarchical network with the fiber distributed data interface (FDDI) as a backbone to interconnect diverse systems on the ship. The standard configuration management (CFM) of FDDI has been suitably modified to evolve a BY-PASS architecture that can survive loss of multiple network components. Performance of the modified network in terms of delay characteristics for voice, data, and video is presented along with its survivability analysis.<<ETX>>","PeriodicalId":212388,"journal":{"name":"MILCOM 91 - Conference record","volume":"R-29 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114127758","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 : 1991-11-04DOI: 10.1109/MILCOM.1991.258469
D. Chi
The author presents a fast algorithm which can correct a single burst error length up to n-k-1 for a RS (n,k) code. Several methods which can reduce the probability of misdecoding if the length of the burst is longer than ((n-k)/2) are discussed. An RS (Reed-Solomon) decoder design is proposed which performs a regular error correction and the proposed burst error correction simultaneously. This method can also be used for BCH codes and for RS codes over Galois fields of characteristics other than two.<>
{"title":"A new algorithm for correcting single burst errors with Reed-Solomon codes","authors":"D. Chi","doi":"10.1109/MILCOM.1991.258469","DOIUrl":"https://doi.org/10.1109/MILCOM.1991.258469","url":null,"abstract":"The author presents a fast algorithm which can correct a single burst error length up to n-k-1 for a RS (n,k) code. Several methods which can reduce the probability of misdecoding if the length of the burst is longer than ((n-k)/2) are discussed. An RS (Reed-Solomon) decoder design is proposed which performs a regular error correction and the proposed burst error correction simultaneously. This method can also be used for BCH codes and for RS codes over Galois fields of characteristics other than two.<<ETX>>","PeriodicalId":212388,"journal":{"name":"MILCOM 91 - Conference record","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128962949","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 : 1991-11-04DOI: 10.1109/MILCOM.1991.258281
B. Abernathy, T. G. Robertazzi
Two algorithms and related performance measures for calculating traffic intensity as a function of spatial location are presented. The first measure of traffic loading is the product of the number of links per area, the average link distance, and the average load per link in a given area. This measure gives a sense of the joint amount of traffic load and cabling for wire networks. The second measure is simply the product of the number of links per area and the average load per link in a given area. This measure gives a sense of traffic load only for wire and radio networks. An example of the algorithms' use for a circular network operating under a shortest path routing is included.<>
{"title":"Loading and spatial location in wire and radio communications networks","authors":"B. Abernathy, T. G. Robertazzi","doi":"10.1109/MILCOM.1991.258281","DOIUrl":"https://doi.org/10.1109/MILCOM.1991.258281","url":null,"abstract":"Two algorithms and related performance measures for calculating traffic intensity as a function of spatial location are presented. The first measure of traffic loading is the product of the number of links per area, the average link distance, and the average load per link in a given area. This measure gives a sense of the joint amount of traffic load and cabling for wire networks. The second measure is simply the product of the number of links per area and the average load per link in a given area. This measure gives a sense of traffic load only for wire and radio networks. An example of the algorithms' use for a circular network operating under a shortest path routing is included.<<ETX>>","PeriodicalId":212388,"journal":{"name":"MILCOM 91 - Conference record","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129205992","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 : 1991-11-04DOI: 10.1109/MILCOM.1991.258472
D. Hatzinakos
Equalization structures useful in polyspectra-based blind equalization are summarized and discussed. These structures can be used with different equalization algorithms and criteria and can be easily modified to equalize minimum, maximum, or mixed phase communication channels. Structural properties related to equalization criteria, transfer functions and algorithms, noise and error propagation effects, complexity, and mean square error bounds are examined and compared.<>
{"title":"Structures for polyspectra-based blind equalizers","authors":"D. Hatzinakos","doi":"10.1109/MILCOM.1991.258472","DOIUrl":"https://doi.org/10.1109/MILCOM.1991.258472","url":null,"abstract":"Equalization structures useful in polyspectra-based blind equalization are summarized and discussed. These structures can be used with different equalization algorithms and criteria and can be easily modified to equalize minimum, maximum, or mixed phase communication channels. Structural properties related to equalization criteria, transfer functions and algorithms, noise and error propagation effects, complexity, and mean square error bounds are examined and compared.<<ETX>>","PeriodicalId":212388,"journal":{"name":"MILCOM 91 - Conference record","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130634259","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 : 1991-11-04DOI: 10.1109/MILCOM.1991.258428
Todd K. Moon, R. Short, C. Rushforth
The rapid acquisition by sequential estimation (RASE) method of DS/SS acquisition is applied to acquisition in a multiple-access channel (MARASE). In MARASE, a set of equations is developed which are nonlinear, noisy, and have a solution over a finite domain. An effective solution method is given which involves finding separate solutions to each equation, and then combining them using the error-correction capability of the maximal length spreading codes. Average acquisition time is analyzed and compared with simulation results.<>
{"title":"A RASE approach to acquisition in SSMA systems","authors":"Todd K. Moon, R. Short, C. Rushforth","doi":"10.1109/MILCOM.1991.258428","DOIUrl":"https://doi.org/10.1109/MILCOM.1991.258428","url":null,"abstract":"The rapid acquisition by sequential estimation (RASE) method of DS/SS acquisition is applied to acquisition in a multiple-access channel (MARASE). In MARASE, a set of equations is developed which are nonlinear, noisy, and have a solution over a finite domain. An effective solution method is given which involves finding separate solutions to each equation, and then combining them using the error-correction capability of the maximal length spreading codes. Average acquisition time is analyzed and compared with simulation results.<<ETX>>","PeriodicalId":212388,"journal":{"name":"MILCOM 91 - Conference record","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123969228","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 : 1991-11-04DOI: 10.1109/MILCOM.1991.258471
M. Webster, J. Richards
For nonstationary LMS adaptive filtering, results are presented which help bridge the gap between ideal theoretical, optimal step-sizes and practical, ad hoc, automatically established step-sizes. An analytical derivation is presented which demonstrates that for the nonstationary system identification paradigm a novel automatic step-size establishment technique estimates the theoretically optimum step-size. This technique sets the step size using the gradient's signal-to-noise ratio.<>
{"title":"Analytical linkage between theoretically-optimum and adhoc step-size establishment for nonstationary LMS filtering","authors":"M. Webster, J. Richards","doi":"10.1109/MILCOM.1991.258471","DOIUrl":"https://doi.org/10.1109/MILCOM.1991.258471","url":null,"abstract":"For nonstationary LMS adaptive filtering, results are presented which help bridge the gap between ideal theoretical, optimal step-sizes and practical, ad hoc, automatically established step-sizes. An analytical derivation is presented which demonstrates that for the nonstationary system identification paradigm a novel automatic step-size establishment technique estimates the theoretically optimum step-size. This technique sets the step size using the gradient's signal-to-noise ratio.<<ETX>>","PeriodicalId":212388,"journal":{"name":"MILCOM 91 - Conference record","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121549977","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 : 1991-11-04DOI: 10.1109/MILCOM.1991.258315
P.H. Wittke, M. Schefter, Y. M. Lam
The performance of trellis-coded M-ary frequency shift keyed (FSK) modulation with noncoherent detection is presented, as applicable to a fast frequency-hopped spread spectrum communication system or a conventional FSK system. Nonorthogonal tone spacing is considering as a parameter to control bandwidth expansion of the coded signal prior to hopping and to allow an increased number of users. Error performance analysis and simulation of the system is presented for full- and partial-band noise jamming and for partial-band multitone jamming. For nonorthogonal tone spacing, the signals are correlated, and so Chernoff bounds on the pairwise error probability for energy detectors with correlated signals are derived.<>
{"title":"The performance of trellis coded hopped spread spectrum communications in noise and jamming","authors":"P.H. Wittke, M. Schefter, Y. M. Lam","doi":"10.1109/MILCOM.1991.258315","DOIUrl":"https://doi.org/10.1109/MILCOM.1991.258315","url":null,"abstract":"The performance of trellis-coded M-ary frequency shift keyed (FSK) modulation with noncoherent detection is presented, as applicable to a fast frequency-hopped spread spectrum communication system or a conventional FSK system. Nonorthogonal tone spacing is considering as a parameter to control bandwidth expansion of the coded signal prior to hopping and to allow an increased number of users. Error performance analysis and simulation of the system is presented for full- and partial-band noise jamming and for partial-band multitone jamming. For nonorthogonal tone spacing, the signals are correlated, and so Chernoff bounds on the pairwise error probability for energy detectors with correlated signals are derived.<<ETX>>","PeriodicalId":212388,"journal":{"name":"MILCOM 91 - Conference record","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114843609","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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