Decimating FIR Filter

This is GNU Radio's "normal" FIR Filter.

For a large number of taps, consider using an FFT Filter, see [1]

For standard filters such as lowpass, highpass, bandpass, etc., the filter.firdes and filter.optfir classes provide convenient generating methods.

Parameters

(R): Run-time adjustable

Decimation

Decimation rate. The output stream will have this decimation applied to it. A decimation rate of 1 simply means no decimation. If decimation is set higher than 1, make sure the filter will remove energy outside of the "output region", i.e. -Fs/2 to Fs/2 where Fs is the input sample rate divided by the decimation rate.

Taps (R)

Taps to use in FIR filter.

Sample Delay

Additional samples to delay by, default is 0 or no delay.

Example Flowgraph

Insert description of flowgraph here, then show a screenshot of the flowgraph and the output if there is an interesting GUI. Currently we have no standard method of uploading the actual flowgraph to the wiki or git repo, unfortunately. The plan is to have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.

Source Files

C++ files

TODO

Header files

TODO

Public header files

TODO

Block definition

GRC File