Prolog to high-speed digital signal processing and control
Article Abstract:
Often it is necessary to process and control data in real-time at very high speeds. Sampling rates frequently need to be higher than the dynamics of the underlying continuous-time processes being sampled. Traditionally, the mathematics of the shift operator to represent the dynamics of sampled data have been used in digital signal processing and control algorithms. However, the shift operator does not effectively bridge the gap between the slow dynamics of the continuous time processes and the high sampling rates, and a more appropriate mathematical operator is necessary for high-speed work. Recent high-speed real time processing research has been able to utilize a divided difference operator to eliminate the disadvantages of the shift operator.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1992
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Prolog to on-line power system security analysis
Article Abstract:
Electrical power outages and overloads can cause significant damage to equipment. Security of power systems is defined in terms of how well a system will react to disturbances in the power supply. Contingency analysis examines how a power system will react to an outage. Methods of contingency analysis take into account what voltages to include, size of the geographic area to be studied and the number of components involved. An optimization power flow algorithm is run to determine the best solution to a specific contingency and its effects. The high volume of power carried along electrical grids creates significant stress, and a high potential for power disruption exists. Security analysis ensures the continued safe supply of power.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1992
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Prolog to: the special section on another look at real-time programming
Article Abstract:
Only recently has real-time programming been established on clean and elegant mathematical models within the framework of the synchronous approach. This approach enables programmers to better distinguish the issues of timing constraints from functional correctness of the designed system. The five papers that follow present principles of synchronous programming and some of its applications. The papers include 'The Synchronous Approach to Reactive and Real-time Systems,' 'A Language for Compositional Specification and Verification of Finite State Hardware Controllers,' 'The ESTEREL Language,' 'The Synchronous Data-Flow Programming Language LUSTRE' and 'Programming Real Time Applications with SIGNAL.'
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1991
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