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HETERODYNE heterodynes time-series. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% DESCRIPTION: HETERODYNE heterodynes time-series. The input signal is mixed down at the specified frequency. The mixed signal is then (optionally) low-pass filtered and (optionally) downsampled to have the specified bandwidth. CALL: b = heterodyne(a,pl) INPUTS: pl - a parameter list a - input analysis object OUTPUTS: b - output analysis object containing the filtered data. Parameters Description %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
| Method Details | |
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| Access | public |
| Defining Class | ao |
| 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 |
| heterodyne | |||
| F0 | [] | none | The heterodyne frequency in Hz. |
| T0 | 0 | none | Modulation start time offset in s. |
| QUAD | 'cos' |
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The quadrature to output. 'sin' or 'cos'. |
| BW | [] | none | The bandwidth at the output in Hz. |
| LP | 1 |
|
Low pass filter the output data at 'bw'. |
| FILTER | [] | none | Filter to be used to low pass the output data. If this parameter is set, the low pass is applied regardless to the value of the 'lp' parameter |
| DS | 1 |
|
Downsample the output data. |
| TIMES, SPLIT | [] | none | The time range to analyze. If not empty, sets the time interval to operate on. As in ao/split, the interval can be specified by:
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Example |
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| plist('F0', [[]], 'T0', [0], 'QUAD', 'cos', 'BW', [[]], 'LP', [true], 'FILTER', [[]], 'DS', [true], 'TIMES', [[]]) |
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| Some information of the method ao/heterodyne are listed below: | |
|---|---|
| Class name | ao |
| Method name | heterodyne |
| Category | Signal Processing |
| 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 | 0 |
| Supported numeric types | {'double'} |
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Method: ao/getdof | Method: ao/highpass | ![]() |
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