Difference between revisions of "NVGate 2021: Release note"

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= Relax the limits of filtering! =
== Relax the limits of filtering! ==


All details on the filters can be read [[NVGate_Filter_Builder|here]]
All details on the filters can be read [[NVGate_Filter_Builder|here]]


==New prototype filters==
===New prototype filters===
In addition to the Butterworth filter, now you can build the IIR filters with the Chebyshev type I (band-pass ripple) filter or Chebyshev type II (stop-band ripple) filter.  
In addition to the Butterworth filter, now you can build the IIR filters with the Chebyshev type I (band-pass ripple) filter or Chebyshev type II (stop-band ripple) filter.  


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For the band pass and band stop filters, the filter order is 2*N, and N can be selected from 1 to 30 in the Office mode, and between 1 to 10 in the Connected mode now. In the previous NVGate version, the maximum value of N was 5.
For the band pass and band stop filters, the filter order is 2*N, and N can be selected from 1 to 30 in the Office mode, and between 1 to 10 in the Connected mode now. In the previous NVGate version, the maximum value of N was 5.


==Relaxed constraints on the cut-off frequency==
===Relaxed constraints on the cut-off frequency===


To guarantee the stability of the filter, there are certain constraints on the value of the cut-off frequency. Compared with previous version of NVGate, such constraints are relaxed significantly now.
To guarantee the stability of the filter, there are certain constraints on the value of the cut-off frequency. Compared with previous version of NVGate, such constraints are relaxed significantly now.
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==Octave overall no limitation==
===Octave overall no limitation===


1/n Octave Overall levels frequency range plug-in are now editable. You can define the min and max.
1/n Octave Overall levels frequency range plug-in are now editable. You can define the min and max.
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'''Limited range''' lets the user define the range by changing the low cut off frequency and high cut off frequency.
'''Limited range''' lets the user define the range by changing the low cut off frequency and high cut off frequency.


==Application==
===Application===
=== global level with filter===
=== global level with filter===
=== remove noise from spectrum===  
=== remove noise from spectrum===  

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