ispec_tran()
Returns current spectrum
Syntax
y = ispec_tran(iOut, fundFreq, numHarm, windowType, windowConst)
Arguments
| Name | Description | Range | Type | Default | Required |
|---|---|---|---|---|---|
| iOut | current through a branch | (-∞, ∞) | real, complex | yes | |
| fundFreq | fundamental frequency | [0, ∞) | real | yes | |
| numHarm | number of harmonics of fundamental frequency | [0, ∞) | integer | yes | |
| windowType | type of window to be applied to the data | [0, 9]† | integer, string | 0 | no |
| windowConst | window constant ‡ † | [0, ∞] | integer, real | 0 | no |
| † The window types and their default constants are: 0 = None 1 = Hamming 0.54 2 = Hanning 0.50 3 = Gaussian 0.75 4 = Kaiser 7.865 5 = 8510 6.0 (This is equivalent to the time-to-frequency transformation with normalgate shape setting in the 8510 series network analyzer.) 6 = Blackman 7 = Blackman-Harris 8 = 8510-Minimum 0 9 = 8510-Maximum 13 | |||||
Examples
y = ispec_tran(I_Probe1.i, 1GHz, 8)
Defined in
$HPEESOF_DIR/expressions/ael/circuit_fun.ael
See Also
Notes/Equations
This measurement gives a current spectrum for a specified branch. The measurement gives a set of RMS current values at each frequency. The fundFreq argument determines the portion of the time-domain waveform to be converted to frequency domain. This is typically one full period corresponding to the lowest frequency in the waveform. The numHarm argument is the number of harmonics of fundamental frequency to be included in the currents spectrum.
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