دانلود مقاله ISI انگلیسی شماره 5497
ترجمه فارسی عنوان مقاله

سیستم هوشمند برای تنظیم میدان مغناطیسی نگه دارنده انحراف یک لامپ اشعه کاتدی

عنوان انگلیسی
An intelligent system for tuning magnetic field of a cathode ray tube deflection yoke
کد مقاله سال انتشار تعداد صفحات مقاله انگلیسی
5497 2003 4 صفحه PDF
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Knowledge-Based Systems, Volume 16, Issue 3, April 2003, Pages 161–164

ترجمه کلمات کلیدی
لامپ اشعه کاتدی - آموزش - شبکه های عصبی - شبیه سازی بازپخت
کلمات کلیدی انگلیسی
پیش نمایش مقاله
پیش نمایش مقاله  سیستم هوشمند برای تنظیم میدان مغناطیسی نگه دارنده انحراف یک لامپ اشعه کاتدی

This short communication concerns identification of the number of magnetic correction shunts and their positions for deflection yoke tuning to correct the misconvergence of colours of a cathode ray tube. The misconvergence of colours is characterised by the distances measured between the traces of red and blue beams. The method proposed consists of two phases, namely, learning and optimisation. In the learning phase, the radial basis function neural network is trained to learn a mapping: correction shunt position→changes in misconvergence. In the optimisation phase, the trained neural network is used to predict changes in misconvergence depending on a correction shunt position. An optimisation procedure based on the predictions returned by the neural net is then executed in order to find the minimal number of correction shunts needed and their positions. During the experimental investigations, 98% of the deflection yokes analysed have been tuned successfully using the technique proposed.