### Navigation

- index
- modules |
- modules |
- next |
- previous |
- SciPy v0.9 Reference Guide (DRAFT) »
- Signal processing (`scipy.signal`) »

# scipy.signal.bilinear

`scipy.signal.``bilinear`(b, a, fs=1.0)

  Return a digital filter from an analog filter using the bilinear transform.

  The bilinear transform substitutes `(z-1) / (z+1`) for `s`.

### Navigation

- index
- modules |
- modules |
- next |
- previous |
- SciPy v0.9 Reference Guide (DRAFT) »
- Signal processing (`scipy.signal`) »