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PSD computes the output theoretical PSD shape with given inputs. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% DESCRIPTION: PSD computes the output theoretical PSD shape with given inputs. Unlike CPSD, it returns individual contributions and takes input vectors of objects (instead of square matrices) CALL: [mat_outSum, mat_out] = psd(sys, pl) INPUTS: sys - (array of) ssm object OUTPUTS: mat_outSummed - contains specified returned aos, noise is summed over all the specified input noises mat_out - contains specified returned aos Parameters Description %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
| Method Details | |
|---|---|
| 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 |
| reorganize | |||
| VARIANCE VARIABLE NAMES | {} [0x0] | none | A cell-array of strings specifying the desired input variable names. |
| PSD VARIABLE NAMES | {} [0x0] | none | A cell-array of strings specifying the desired input variable names. |
| PZMODEL VARIABLE NAMES | {} [0x0] | none | A cell-array of strings of the desired input variable names. |
| AOS VARIABLE NAMES | {} [0x0] | none | A cell-array of input defined with AOs spectrums. |
| RETURN STATES | {} [0x0] | none | A cell-array of names of state ports to return. |
| RETURN OUTPUTS, OUTPUTS | {} [0x0] | none | A cell-array of output ports to return. |
| psd | |||
| VARIANCE | [] | none | The variance vector of this noise between input ports for the time-discrete noise model. |
| PSD | [] | none | The one sided psd vector of the white noise between input ports. |
| AOS | [] | none | A vector of input PSD AOs, The spectrum of this noise between input ports for the time-continuous noise model. |
| PZMODELS | [] | none | vector of noise shape filters for the different corresponding inputs. |
| REORGANIZE | 1 |
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When set to 0, this means the ssm does not need be modified to match the requested i/o. Faster but dangerous! |
| F2 | [] | none | The maximum frequency. Default is Nyquist or 1Hz. |
| F1 | [] | none | The minimum frequency. Default is f2*1e-5. |
| NF | 200 | none | The number of frequency bins. Frequencies are scale logarithmically |
| F | [] | none | Specify a vector of frequencies. If this is used, 'f1', 'f2', and 'nf' parameters are ignored. |
Example |
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| plist('VARIANCE VARIABLE NAMES', cell(0,0), 'PSD VARIABLE NAMES', cell(0,0), 'PZMODEL VARIABLE NAMES', cell(0,0), 'AOS VARIABLE NAMES', cell(0,0), 'RETURN STATES', cell(0,0), 'RETURN OUTPUTS', cell(0,0), 'VARIANCE', [[]], 'PSD', [[]], 'AOS', [[]], 'PZMODELS', [[]], 'REORGANIZE', [true], 'F2', [[]], 'F1', [[]], 'NF', [200], 'F', [[]]) |
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| Some information of the method ssm/psd are listed below: | |
|---|---|
| Class name | ssm |
| Method name | psd |
| Category | Operator |
| Package name | ltpda |
| VCS Version | 967b0eec0dece803a81af8ef54ad2f8c784b20b2 |
| Min input args | 1 |
| Max input args | -1 |
| Min output args | 1 |
| Max output args | -1 |
| Can be used as modifier | 1 |
| Supported numeric types | {'double'} |
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Method: ssm/optimiseForFitting | Method: ssm/removeEmptyBlocks | ![]() |
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