https://jaidevd.com/tags/interpolation/ Recent content in Interpolation on Jaidev's Blog Hugo en-us Fri, 18 Apr 2014 12:10:15 +0530 https://jaidevd.com/posts/emd-edge-effects/ Fri, 18 Apr 2014 12:10:15 +0530 https://jaidevd.com/posts/emd-edge-effects/ <p>It has been a little over three years since I started working on a <a href="http://github.com/jaidevd/pyhht">Python implementation of the Hilbert Huang Transform</a>. When I first presented it at SciPy India 2011 (<a href="http://urtalk.kpoint.com/kapsule/gcc-57b6c86b-2f12-4244-950c-a34360a2cc1f/t/hilberthuang-transform">video</a>) it was just a collection of small scripts, without packaging, testing or even docstrings. Over time PyHHT has garnered some interest, and I have, since the last few weeks, found the time to regularly work on it. I have been able to come up with a decent implementation of <a href="http://en.wikipedia.org/wiki/Hilbert%E2%80%93Huang_transform">empirical mode decomposition</a>, pretty much in line with everything described in the <a href="http://tec.earth.sinica.edu.tw/research/report/paper/20070711HHT.pdf">original paper</a> by Huang et al. The other parts of HHT, like the Hilbert spectrum and its time frequency representations are right around the corner.</p>