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findDiffStep search optimal step for differentiation. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% DESCRIPTION: Perform a scan of the derivative step for ssm systems and output the optimal step for the derivative calculated with ssm/parameterDiff CALL: step = findDiffStep(ssm, pl) INPUTS: ssm: A ssm system pl: A parameters list OUTPUT: step: Is a cdata Ao containing the optimal steps corresponding to the given parameters for the differentiation. Parameters Description VERSION: $Id: findDiffStep.m,v 1.7 2011/11/21 14:28:30 luigi Exp $ %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
| Method Details | |
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| Access | public |
| Defining Class | ssm |
| Sealed | 0 |
| Static | 0 |
| Sets for this method … |
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| Default |
Default |
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| no description | |||
| Key | Default Value | Options | Description |
| INNAMES | {} [0x0] | none | A cell array containing the input port name. |
| OUTNAMES | {} [0x0] | none | A cell array containing the output port name?. |
| PARAMS | {} [0x0] | none | A cell array with the names of the parameters |
| PARAMVALUES | [] | none | An array with the values of the parameters |
| LOWSTEP | 1e-08 | none | Lower step. It is a multiplicative factor.True lower step is given by lowstep.*ParamValues |
| UPSTEP | 0.10000000000000001 | none | Upper step. It is a multiplicative factor.True upper step is given by upstep.*ParamValues |
| NSTEP | [] | none | Number of steps. |
| STEPTYPE | 'log' |
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Type of step scan. |
| F | [] | none | Vector of frequencies for bode response. In Hz |
| PLOTRESULTS | 0 |
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Decide to plot results for the stability ofthe derivative averaged over the frequencies f |
| OUTPUTFIT | 1 |
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Decide to a second order linear fit to output dataand output the minimum of the fit parabola as optimal step |
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| Some information of the method ssm/findDiffStep are listed below: | |
|---|---|
| Class name | ssm |
| Method name | findDiffStep |
| Category | Signal Processing |
| CVS Version | $Id: findDiffStep.m,v 1.7 2011/11/21 14:28:30 luigi Exp $ |
| Min input args | 1 |
| Max input args | -1 |
| Min output args | 1 |
| Max output args | -1 |
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Method: ssm/bodecst | Method: ssm/generateCovariance | ![]() |
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