کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
563490 | 875499 | 2012 | 9 صفحه PDF | دانلود رایگان |
This paper introduces a new, adaptive-filter-based controller that shows advantageous properties from the viewpoint of its communication requirement. The algorithm is called signed-error filtered-x LMS (SE-FxLMS). Its novelty is characterized by the fact that it makes possible data compression in the feedback path of adaptive-filter-based control loops in a very simple way. This feature is especially useful in such closed-loop systems where the feedback signals are transmitted over a low-bandwidth communication channel. This is a typical case in so-called networked control systems (NCS), where the communication is carried out over a shared communication channel, e.g., using a wireless sensor network. The paper introduces an analysis of the algorithm as well.
► We introduced a new algorithm called signed-error FxLMS.
► The advantage of the algorithm is its data compression capability.
► Existing results are extended with the effect of the secondary path.
► The analysis of the algorithm gives an upper bound on the mean-absolute error.
Journal: Signal Processing - Volume 92, Issue 1, January 2012, Pages 130–138