Lagrange interpolator.

Namespace: dsp::filter

Prototype

sptr<InterpolatorFIR<T>> itrp_lagrange(unsigned int degree)

Description

Lagrange polynomial interpolation consists in interpolating the signal with a polynomial of given order, which is the same, in terms of FIR filtering, to interpolate the sinc function by a polynomial.

See also

InterpolatorFIR, itrp_cspline(), itrp_linear(), itrp_sinc()