Kalman Filter and Session-Based Interface

Question

Vasileios Ntertimanis 2015-6-5

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/222643-kalman-filter-and-session-based-interface

回答： Drew Davis 2015-6-8

i have a NI cDAQ-9188 card and i am using MATLAB 2014a and the therein installed DAQ Toolbox. I want to use the session-based interface (actually i have no other option) to perform ONLINE (but not real-time) state estimation. To this end, i would like to perform data acquisition and place the code for a Kalman filter somewhere in the measurement process, e.g., estimate while i measure. Is this possible? Can you please provide me with an indicative architecture of my code? I know the answer (it is no) but... is this possible to do it in SIMULINK?

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Answer 1

Drew Davis 2015-6-8

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https://ww2.mathworks.cn/matlabcentral/answers/222643-kalman-filter-and-session-based-interface#answer_181978

You can add a listener to a data acquisition object which will execute a callback on a certain event. The callback can then contain the code necessary to perform the Kalman filtering. See the doc page below:

http://www.mathworks.com/help/daq/acquire-analog-input-data.html#btl6bls-6

In Simulink there are Kalman filtering blocks

http://www.mathworks.com/help/ident/ref/kalmanfilter.html

http://www.mathworks.com/help/dsp/ref/kalmanfilter.html

See the doc page below for data acquisition blocks:

http://www.mathworks.com/help/daq/ref/analog_input.html