prep_sampling_fft class

Namespace: Ans.DataProcessing.operators.mapping

Summary

Prepare time sampling optimum for FFT computation and expected frequencies in output.

available inputs: time_freq_support (TimeFreqSupport), cutoff_frequency (double) (optional), number_sampling_point (Int32) (optional)

available outputs: time_tfs_sampled (TimeFreqSupport), freq_tfs_fft (TimeFreqSupport)

Example

op = prep_sampling_fft()

op = prep_sampling_fft(time_freq_support=my_time_freq_support,cutoff_frequency=my_cutoff_frequency,number_sampling_point=my_number_sampling_point)

Class Information

Property	Value
Namespace	Ans.DataProcessing.operators.mapping
Assembly	Ans_Dpf_Math_dll_cs
Base Class	Ans.DataProcessing.internal_objects.BaseOperator

Inputs

time_freq_support

Initial time domain TimeFreqSupport.

Type: LinkableInput

cutoff_frequency

Cutoff Frequency. In this case, number of points is calculated computing (time_range * cutoff_freq * 2) and taking the next power of 2 (optimum for fft calculation).

Type: LinkableInput

number_sampling_point

For number of sampling point (calculation with cutoff_frequency is ignored).

Type: LinkableInput

Outputs

time_tfs_sampled

Optimum sampled time domain TimeFreqSupport.

Type: LinkableOutput

freq_tfs_fft

Frequency domain TimeFreqSupport expected in output of FFT.

Type: LinkableOutput

Constructors

Constructor

prep_sampling_fft()

Constructor

prep_sampling_fft(time_freq_support, cutoff_frequency, number_sampling_point, config)

Parameters:

• time_freq_support (object)
• cutoff_frequency (object)
• number_sampling_point (object)
• config (OperatorConfig)

Constructor

prep_sampling_fft(config)

Parameters:

• config (OperatorConfig)

Methods

Properties

inputs

Type: InputSpec

# Get or set the property
value = obj.inputs
obj.inputs = new_value

outputs

Type: OutputSpec

# Get or set the property
value = obj.outputs
obj.outputs = new_value

defaultConfig

Type: Config

# Get the property (read-only)
value = obj.defaultConfig