Rational Resampler: Difference between revisions
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If neither is specified, a reasonable default, 0.4, is used as the fractional_bw. | If neither is specified, a reasonable default, 0.4, is used as the fractional_bw. | ||
This block only works when the output language of the flowgraph is Python. | |||
== Parameters == | == Parameters == | ||
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; Fractional BW | ; Fractional BW | ||
: Fractional bandwidth in (0, 0.5), measured at final freq (use 0.4) (float) | : Fractional bandwidth in (0, 0.5), measured at final freq (use 0.4) (float). In GNU Radio 3.8, the default value is 0, which should either be changed to a value 'between' 0 and 0.5; or just removed. Removing the value of fractional bandwidth will cause the block to use the default value of 0.4. | ||
== Example Flowgraph == | == Example Flowgraph == | ||
This flowgraph shows a Rational Resampler block changing the sample rate from 960 to 500. | |||
[[File:RTTY_rcv.png|800px]] | |||
== Source Files == | == Source Files == | ||
; | ; C++ files | ||
: [https://github.com/gnuradio/gnuradio/blob/ | : [https://github.com/gnuradio/gnuradio/blob/main/gr-filter/lib/rational_resampler_impl.cc] | ||
; Header files | |||
: [https://github.com/gnuradio/gnuradio/blob/main/gr-filter/lib/rational_resampler_impl.h] | |||
; Block definition | ; Block definition | ||
: [https://github.com/gnuradio/gnuradio/blob/master/gr-filter/grc/filter_rational_resampler_xxx.block.yml] | : [https://github.com/gnuradio/gnuradio/blob/master/gr-filter/grc/filter_rational_resampler_xxx.block.yml] | ||
Latest revision as of 13:35, 3 May 2023
Rational resampling polyphase FIR filter.
Either taps or fractional_bw may be specified, but not both.
If neither is specified, a reasonable default, 0.4, is used as the fractional_bw.
This block only works when the output language of the flowgraph is Python.
Parameters
(R): Run-time adjustable
- Interpolation
- Interpolation factor (integer > 0)
- Decimation
- Decimation factor (integer > 0)
- Taps (R)
- Optional filter coefficients (sequence)
- Fractional BW
- Fractional bandwidth in (0, 0.5), measured at final freq (use 0.4) (float). In GNU Radio 3.8, the default value is 0, which should either be changed to a value 'between' 0 and 0.5; or just removed. Removing the value of fractional bandwidth will cause the block to use the default value of 0.4.
Example Flowgraph
This flowgraph shows a Rational Resampler block changing the sample rate from 960 to 500.
Source Files
- C++ files
- [1]
- Header files
- [2]
- Block definition
- [3]