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conicity |

compute the conicity stabity criterium

Syntax

    conicity(plant,range,params,controller)

    conicity(plant,range,controller)

Description

`conicity(plant,range,params,controller)` coputes the conicity stability criterium for the plant `plant` in the range specified by the array `range` with the static controller `controller`.

Remarks

This method is applicable only if the plant system is has single takagi sugeno mapping for all the outputs or it is a linear one. In addition the controller must be a static one. The outputs of the function are: CONICITY INDEX = CONIC DESVIATION / CONIC ROBUSTNESS CONIC DEVIATION = GAIN(CONTROLLER - CENTRE) CONIC ROBUSTNESS = 1 / GAIN(FEEDB((A,B,C,D),CENTRE) where `centre` is the center of the cone which is calculated with the method specified in the field `search_method` of the `params` structure. Possible values for this field are:

- `linearization` which uses a linarization technique for finding the center of the cone

if no `search_method` is specified the linearization techique is used.

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