Spectrum Multi Notch Filter
The Spectrum Multi Notch Filter block allows you to remove or to reduce single or multiple signals from the spectrum.
Left hand side Input:
- Spectra
Right hand side Output:
- Spectra (filtered)
This block allows a lot of features to remove any unwanted signal from the spectrum:
- Remove a Single signal
- Remove Multiple signals
- Remove Harmonics
- Remove Intermodulations
The settings are quite simple. Select the signal type to remove or to reduce in power (Single, Multiple, Harmonics, Intermodulation) and set the needed parameters:
- Frequency (the frequency of the signal to remove or the base frequency of the Harmonics/Intermodulation)
- Power (In dB to be removed from the signal peak)
- Harmonic Frequency (The frequency step between the Intermodulation's)
- Notch Frequency (the width/span of the signal to be removed)
Attached screenshot shows a 40dB reduction of some intermodulation products.
The Spectrum Multi Notch Filter block includes a real-time preview feature showing the original signal in yellow and the reduced/removed signal in dark blue:
The same setup but now removing all intermodulation's in total:
Some typical missions might look like attached:
Even cascading the Spectrum Multi Notch Filter is possible:
Or how about a comparison between different setups?
