کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7109937 1460662 2015 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A general multirate approach for direct closed-loop identification to the Nyquist frequency and beyond
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی کنترل و سیستم های مهندسی
پیش نمایش صفحه اول مقاله
A general multirate approach for direct closed-loop identification to the Nyquist frequency and beyond
چکیده انگلیسی
Without injecting any external persistently exciting signals, a general multirate approach is proposed for direct closed-loop identification. First, an extended least-squares algorithm is designed to identify the mixed-rate model after polynomial transformation. Next, the identified mixed-rate model is used to compute the fast-rate model, from which system dynamics to the Nyquist frequency and beyond can be obtained. Identifiability is mathematically proven if the plant output sampling rate is non-integer multiples of the controller sampling rate. The effectiveness of the proposed approach is evaluated by both the simulation and experimental results in a hard disk drive.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Automatica - Volume 53, March 2015, Pages 164-170
نویسندگان
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