Publications

Bird, TS 1978, 'Prediction of dual-shaped-reflector antenna crosspolarisation', Electronics Letters, vol. 14, no. 4, pp. 98-98.
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Bird, TS, Boomars, JL & Clarricoats, PJB 1978, 'Multiple-beam dual-offset reflector antenna with an array feed', Electronics Letters, vol. 14, no. 14, pp. 439-439.
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COOK, DJ & SIRIVIVATNANON, V 1978, 'INFLUENCE OF PREMIX POLYMER ADDITIVES ON DEFORMATION-BEHAVIOR OF CONCRETE', CEMENT AND CONCRETE RESEARCH, vol. 8, no. 3, pp. 369-380.
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COOK, DJ & SIRIVIVATNANON, V 1978, 'INFLUENCE OF PREMIX POLYMER ADDITIVES ON DEFORMATION-BEHAVIOR OF CONCRETE - REPLY', CEMENT AND CONCRETE RESEARCH, vol. 8, no. 6, pp. 779-780.
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Doan, HB & Cantoni, A 1978, 'Fast adaptation of equaliser and desired response for digital data receivers', IEE Journal on Electronic Circuits and Systems, vol. 2, no. 5, pp. 159-159.
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The paper considers the design of the equalizer and the desired overall system impulse response (d. i. r. ) for various types of detection algorithms used to recover digital data which has suffered intersymbol interference. The joint optimization of the equalizer and desired response is formulated using a mean-square error cost. A constraint on the desired response is introduced which enables simple adaptive algorithms to be derived for determining the optimum equalizer and d. i. r. One of the algorithms considered has been found to converge rapidly and is thus ideally suited for application where fast start-up is required. Simulation results of the probability of error performance of various detection algorithms using the equalizer and d. i. r. designed according to the approach developed in the paper, are presented. These results show that the performance obtained is comparable to that achieved with systems in which the equalizer and d. i. r. are designed according to other techniques. The disadvantage of these other techniques is that they usually lead to algorithms which are difficult to make adaptive and are slow to converge.

Hung, N & O. Anderson, B 1978, 'Triangularization technique for the design of multivariable control systems', 1978 IEEE Conference on Decision and Control including the 17th Symposium on Adaptive Processes, pp. 795-800.
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A novel technique is presented for the design of multivariable control systems. A stable and proper precompensator is to be determined for a multivariable plant such that the compensated plant transfer function matrix is triangular and diagonally dominant in a nonstandard way. As a conseuqnce of the triangular-diagonal-dominance property, only the diagonal elements need to be considered in an overall closed-loop design. In effect, the technique provides a systematic procedure to reduce a multivariable design problem to independent scalar design problems.

Shannon†, AG & Sleet, RJ 1978, 'Staff and student expectations of some undergraduate mathematics courses', International Journal of Mathematical Education in Science and Technology, vol. 9, no. 2, pp. 239-247.
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This paper reports a stage of a project (tertiary education in applied mathematics, TEAM) aimed at investigating aspects of first-year undergraduate mathematics courses. The aims of this part of the project are to provide information about first-year students' expectations and preferences, and a general view of lecturers' aims in relation to such courses. © Taylor & Francis Group, LLC.

Waldron, KJ 1978, 'Location of burmester synthesis solutions with fully rotatable cranks', Mechanism and Machine Theory, vol. 13, no. 2, pp. 125-137.
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A method is developed for locating regions of the Burmester circle-point curve which give the driving cranks of crank-rocker or drag-link linkages when combined with a given driven crank. The technique used is a graphical iteration procedure. When used as suggested convergence is rapid. The technique is compatible with the author's procedure for avoiding solutions requiring branch changes and ensuring correct order of progression through the design positions. © 1978.

Waldron, KJ & Strong, RT 1978, 'Improved solutions of the branch and order problems of Burmester linkage synthesis', Mechanism and Machine Theory, vol. 13, no. 2, pp. 199-207.
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A method is presented to resolve the ambiguity in Waldron's solution to the order problem of planar Burmester synthesis by inspection of an image pole circle. This replaces the more cumbersome method previously used. Another method is presented to allow the mapping of permissible segments of the circle-point curve, in Waldron's solution to the branch problem by inspection of the subscripts of the Qij, Tij and Uij points. This replaces the much more cumbersome angle sign table previously used. © 1978.