Low-pass Filter Taps

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Generates taps for a low-pass filter and stores it in variable called whatever the ID is set to. It's essentially a convenience wrapper for calling firdes.low_pass(). None of the parameters are realtime changeable because the taps are created once at the beginning of the flowgraph.

Parameters

ID
Similar to the Variable block, the ID will hold the values generated.
Gain
Scaling factor applied to output.
Sample Rate
Input sample rate.
Cutoff Freq
Cutoff frequency in Hz
Transition Width
Transition width between stop-band and pass-band in Hz
Window
Type of window to use
Beta
The beta paramater only applies to the Kaiser window.

Example Flowgraph

This flowgraph can be found at [1].

Filter taps fg.png

Source Files