how to find parameters (A and B ) for a non linear arx model and how can i convert this non linear arx model into transfer function
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for finding parameters in non linear arx model and converting it to transfer function
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Rajiv Singh
il 22 Mag 2013
"Converting" a nonlinear model into a linear one is an exercise in linearization. See idnlarx/linearize and idnlarx/linapp functions.
Depending upon the configuration of the nonlinear ARX model, it may employ a linear block (which looks like an ARX model) in parallel to a nonlinear block. If you just want to extract out this linear piece, you can use the "getlinmod" method. See "help idnlarx/getlinmod".
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