[Numpy-discussion] [OT] Interpolation of an unevently sampled bandwidth limited signal

Evgeni Burovski evgeny.burovskiy at gmail.com
Thu Feb 4 04:42:23 EST 2016


On Thu, Feb 4, 2016 at 9:32 AM, Nadav Horesh <nadavh at visionsense.com> wrote:
> I have several cases of hand digitized spectra that I'd like to resample
> these spectra at even spacings. My problem is that cubic or RBF splines
> often result in an unacceptible over-shooting. Is there a python module that
> provides something similar to sinc interpolation on unevenly space sampled
> signal?


There are PCHIP and Akima interpolators in scipy.interpolate, both are
designed to prevent overshooting at the expense of only being
C1-smooth. (No idea about sinc interpolation)



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