Filter ADAFs

Filter ADAF data.

Documentation

Filter ADAFs with a specified filter.

Both IIR filters and FIR filters can be selected. The filter can be a forward or forward-backward filter. The resulting filter design and an example of filtered data can be inspected in real-time within the node’s GUI.

The FIR filter windows that can be used are:

• Bartlett-Hann

• Bartlett

• Blackman

• Blackman-Harris

• Bohman

• Boxcar

• Dolph-Chebyshev

• Flat top

• Gaussian

• Generalized Gaussian

• Hamming

• Hann

• Kaiser

• Nuttall

• Parzen

• Slepian

• Triangular

The IIR filter functions supported are:

• Butterworth

• Chebyshev 1

• Chebyshev 2

• Elliptic

Definition

Input ports

port1 [adaf]

Input ADAFs

Output ports

port1 [adaf]

Output ADAFs with filter applied

Configuration

Auto refresh (auto_plot)

Automatically refresh the data plot after changes

Filter type (filter_type)

Combo of filter types

Filtering (filtering)

Filtering types

Cutoff frequency (fir_cutoff)

Cutoff frequency of filter (expressed in the same units as nyq) OR an array of cutoff frequencies (that is, band edges). In the latter case, the frequencies in cutoff should be positive and monotonically increasing between 0 and nyq. The values 0 and nyq must not be included in cutoff.

Filter length (fir_len)

Length of the filter

Beta (fir_w1)

Filter specific parameter. Check the help.

Sigma (fir_w2)

Filter specific parameter. Check the help.

Filter windows (fir_windows)

Filter windows for FIR filter

Frequency pass type (freq_type)

Frequency pass type required for the FIR filter.

Filter designs (iir_filters)

IIR filters

Max loss in passband (dB) (iir_gpass)

Max loss in the passband (dB)

Min attenuation in stopband (dB) (iir_gstop)

Min attenuation in the stopband (dB)

Passband edge frequency (iir_wp)

Passband edge frequency

Stopband edge frequency (iir_ws)

Stopband edge frequency

Select Signal (signal_select)

Select a signal

Examples

• FilterADAFs.syx

Implementation

class node_filter_adafs.FilterADAFsWithPlot