摘要:

The design of an integrated control system using stabilising fins and the rudder for ship roll stabilisation is discussed. Following the description of the mathematical models of typical warship dynamics and wave disturbances, controller designs based on traditional sensitivity analysis in the frequency domain are presented. Simulation results are used to demonstrate the enhanced roll stabilisation which can be achieved by the adoption of the proposed integrated control strategy.

ISSN:0956-3385    

DOI:10.1049/cce:19910013

出版商:IEE    

年代:1991

数据来源: IET

摘要:

Technology pervades all aspects of contemporary life. It has been the basic ingredient in the development of the complex modern society of the late 20th century. And as this complexity increases, correspondingly, the dependence on technology grows with it.

ISSN:0956-3385    

DOI:10.1049/cce:19910014

出版商:IEE    

年代:1991

数据来源: IET

摘要:

A PC-based instrumentation system developed primarily to diagnose Huntingdon's disease, Parkinson's disease and schizophrenia by using the contingent negative variation (CNV) of the subject's electroencephalogram (electrical activity of the brain) is described. The system is capable of controlling the required experiment, acquiring and processing the signals from eight channels, and generating the diagnosis results. As the diagnosis was based on a signal (i.e. the CNV) which has an amplitude typically of the order of a few microvolts and is usually badly contaminated by various noise sources, considerable and accurate signal conditioning and preprocessing was necessary. A description of the steps following from the data recording to produce the diagnosis results is provided.

ISSN:0956-3385    

DOI:10.1049/cce:19910016

出版商:IEE    

年代:1991

数据来源: IET

摘要:

Parallel processing is being increasingly looked to for cost-effective solutions to complex computational problems. Image processing often generates these due to the large amount of data required for images. The transputer provides a relatively cheap, and increasingly available, parallel-processing solution. Here a transputer array is used to solve a specific image processing problem, and the steps taken to optimise the performance are described.

ISSN:0956-3385    

DOI:10.1049/cce:19910017

出版商:IEE    

年代:1991

数据来源: IET

摘要:

This article discusses the use of parallel computers in the context of modern control engineering practices. It outlines potential advantages, the role of the control engineer, and suggests methodologies, with particular reference to the problem of simulating large-scale systems. Many of the ideas introduced are general enough to extend to a much wider class of problems.

ISSN:0956-3385    

DOI:10.1049/cce:19910018

出版商:IEE    

年代:1991

数据来源: IET

摘要:

It is widely held that expert systems are small systems and that the methods used to build them do not scale up to the sort of large commercial systems necessary for their mature acceptance. This article looks at prototyping from the point of view of the traditional system development life cycle and shows how the latter can be modified to incorporate fast prototyping in building large systems which may incorporate expert systems. It also introduces a classification of different approaches to prototyping.

ISSN:0956-3385    

DOI:10.1049/cce:19910020

出版商:IEE    

年代:1991

数据来源: IET

摘要:

Analysis guidelines have been developed which are based on experience gained in using the finite-element method closely linked with the design process. This insight into day-to-day problems is aimed at helping engineers faced with the decision process at the start of a design project.

ISSN:0956-3385    

DOI:10.1049/cce:19910021

出版商:IEE    

年代:1991

数据来源: IET