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Estimates the Inverse Chebyshev filter order.

sampling frequency

The sampling frequency in Hz.

This value must be greater than zero.

Default: 1.0 Hz, which is the normalized sampling frequency

frequency specifications

Band edge frequencies of the filter, in Hz.

lower pass frequency

First passband edge frequency in hertz.

lower stop frequency

First stopband edge frequency in Hz.

higher pass frequency

Second passband edge frequency in Hz. The node ignores this input for lowpass and highpass filters.

higher stop frequency

Second stopband edge frequency, in Hz. The node ignores this input for lowpass and highpass filters.

ripple specifications

Ripple level in the passband and stopband of the filter.

passband

Ripple level in the passband.

Default: 0.1

stopband

Ripple level in the stopband.

Default: 60

decibel or linear?

A Boolean value that specifies whether this node applies a decibel scale or a linear scale to the ripple levels.

 TRUE The node applies a decibel scale to the ripple level. FALSE The node applies a linear scale to the ripple level.

Default: TRUE

error in

Error conditions that occur before this node runs. The node responds to this input according to standard error behavior.

Default: no error

stopband atten

Stopband attenuation in decibels.

filter type

The type of filter that this node creates.

 Lowpass Creates a lowpass filter. Highpass Creates a highpass filter. Bandpass Creates a bandpass filter. Bandstop Creates a bandstop filter.

Default: Lowpass

estimated order

Minimum order value that the filter requires to meet the specifications you set.

high cutoff frequency

High cutoff frequency. The cutoff frequency corresponds to the edge frequency of the stopband.

low cutoff frequency

Low cutoff frequency. The cutoff frequency corresponds to the edge frequency of the stopband.

error out

Error information. The node produces this output according to standard error behavior.