Rational Resampler

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)

Example Flowgraph

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

Source Files

Python files

[1]

Block definition

[2]