The proceedings contains 5 papers. Topics discussed include realtimesystems, systems analysis, concurrent engineering, data reduction, mathematical models, standards, animation and specifications.
The proceedings contains 5 papers. Topics discussed include realtimesystems, systems analysis, concurrent engineering, data reduction, mathematical models, standards, animation and specifications.
Research conducted by the Defence Research Agency and Cambridge Consultants on realtime knowledge based methods and techniques is summarized. The development of a large scale prototype that demonstrates the effective...
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Research conducted by the Defence Research Agency and Cambridge Consultants on realtime knowledge based methods and techniques is summarized. The development of a large scale prototype that demonstrates the effectiveness of this research is also presented. It concerns a realtime decision support system to enhance the performance of helicopter aircrew engaged in a naval mission to search and identify contacts in coastal water.
This paper reports and evaluates the experience of applying object-oriented techniques to the development of a real-timesystem for monitoring and control of remote sites. The system, which is currently installed at s...
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This paper reports and evaluates the experience of applying object-oriented techniques to the development of a real-timesystem for monitoring and control of remote sites. The system, which is currently installed at several sites in the UK and elsewhere in Europe, also includes database management functions and an interactive operator interface. It was originally designed in 1987 and has evolved in an incremental fashion to the present day. The paper focuses on the object-oriented aspects of the system architecture and on the development process model. Together they provide a technical and organisational framework for projects of similar nature. The pros and cons of the solutions adopted are discussed.
The proceedings contains 10 papers from the Institution of Electrical Engineers colloquium on real-timesystems. Topics discussed include: realtime flight safety critical software design;portable codes for future avi...
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The proceedings contains 10 papers from the Institution of Electrical Engineers colloquium on real-timesystems. Topics discussed include: realtime flight safety critical software design;portable codes for future avionic systems;extreme execution times for software;lean formal methods;realtimesystemdevelopment;and embedded systems.
This conference contains 7 papers, one in abstract form only, dealing with the development and application of CAD packages to control system design. Topics covered include the following: Integrated use of Computer Aid...
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This conference contains 7 papers, one in abstract form only, dealing with the development and application of CAD packages to control system design. Topics covered include the following: Integrated use of Computer Aided Control system Design (CACSD);CAD based discrete optimal multivariable control techniques;Microcomputers in the control laboratory;CAD/CAT of digital PID Controllers for multivariable plants;CACSD project at Lund Institute of Technology;Man-Machine interface for CACSD;and real-time graphics operating system.
This paper presents a review of ESM ENVIRONMENT SIMULATION techniques based upon a combination of the more desirable features offered by a mix of mathematical modelling and equipment simulation at the practical operat...
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This paper presents a review of ESM ENVIRONMENT SIMULATION techniques based upon a combination of the more desirable features offered by a mix of mathematical modelling and equipment simulation at the practical operating frequency of the sensor. The approach is based on synthesising, to a high degree of accuracy, the signals encountered in the real life environment. By generating actual signals and using real equipment the need for mathematical sensor models is eliminated. At the same time, since the synthesised environment is made to occur in realtime and at practical power levels a high degree of realism is achieved. The common requirement against which such simulators have evolved is the need to create the high fidelity, realtime dynamically changing, electromagnetic environment. A central theme of this paper is Electromagnetic Environment Synthesis.
Advances in the ability to automate and optimise the high level control of complex processes have been achieved, based on a linguistic rule based expert system approach in which the decision making methods and actions...
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Advances in the ability to automate and optimise the high level control of complex processes have been achieved, based on a linguistic rule based expert system approach in which the decision making methods and actions of the human expert are emulated. This paper describes a stand alone purpose designed control sysem embodying these techniques, and its application to the supervisory control of cement manufacture.
Measures used to analyze the quality of a formal development is presented. The CDIS project was developed between 1989 and 1992 and is a system for display and manipulation of information used by air traffic controlle...
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Measures used to analyze the quality of a formal development is presented. The CDIS project was developed between 1989 and 1992 and is a system for display and manipulation of information used by air traffic controllers in the new terminal control room at the London Area and Terminal control centre. It is a distributed system running on about 100 computers linked on a local area network. It is a high availability system with duplexed LANs and workstation computers providing complete hardware fault tolerance. It is a realtimesystem with stringent performance requirements.
The development of real-time channel evaluation (RTCE) techniques for the purposes of improved channel characterisation and communication system control has taken place primarily in the HF band. More attention is now ...
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The development of real-time channel evaluation (RTCE) techniques for the purposes of improved channel characterisation and communication system control has taken place primarily in the HF band. More attention is now being given to forms of RTCE which can be 'embedded' into the overall communication system design, and which make use of essentially the same RF equipment as employed for communication purposes. In the paper, several alternative modem-based RTCE schemes are discussed including: (a) error rate monitoring;(b) phase perturbation measurements;(c) noise/interference characterisation;(d) use of soft-decision data;(e) use of ARQ requests;(f) use of synchronisation data;and (g) pseudo-error monitoring.
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