# Rational Resampler

From GNU Radio

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.

## Parameters[edit]

(*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)

## Example Flowgraph[edit]

This flowgraph shows a Rational Resampler block changing the sample rate from 960 to 500.

## Source Files[edit]

- Python files
- [1]

- Block definition
- [2]