Low Pass Filter

This filter is a convenience wrapper for an Decimating FIR Filter and a firdes taps generating function of low-pass type, i.e. calling firdes.low_pass.

Parameters
(R): Run-time adjustable


 * FIR Type (R)
 * Specify whether input/output is real or complex


 * Decimation
 * Decimation rate of filter, must be an integer, and cannot change in realtime.


 * Gain (R)
 * Scaling factor applied to output.


 * Sample Rate (R)
 * Input sample rate.


 * Cutoff Freq (R)
 * Cutoff frequency in Hz


 * Transition Width (R)
 * Transition width between stop-band and pass-band in Hz


 * Window (R)
 * Type of window to use


 * Beta (R)
 * The beta paramater only applies to the Kaiser window.

Example Flowgraph
This flowgraph shows a Low Pass Filter block.