Abstract
This paper proposes a design method for dynamic quantizers in a MIMO networked control system. It is well known that feedback-type dynamic quantizers are effective for the quantization of data series in the sense of noise shaping. The dynamic quantizers include a set of a dynamic filter and a static quantizer. When it is required to use the quantizer in network communication, the data size of the signal should be minimized appropriately by the quantizers. We have proposed a design method for dynamic quantizers in a SISO system based on the communication rate constraint. In this paper, the design method is extended to MIMO systems. Using this extension, the communication rate constraint for one type of concentrated system can be handled. In the setting of the quantizer for a MIMO system, bit assignment is an important matter for the appropriate design of information flow. The effectiveness of the proposed design method is shown using numerical examples. © 2013 Wiley Periodicals, Inc. Electron Comm Jpn, 96(5): 28–36, 2013; Published online in Wiley Online Library (wileyonlinelibrary.com). DOI 10.1002/ecj.11396
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