PicoScope 7 Software
Available on Windows, Mac and Linux
Yes, this is an accurate viewpoint. Sometimes the Goertzel is even referred to as a filter (IIR). Though, it does produce an identical mathematical result as the DFT (naive, or FFT), assuming infinite precision arithmetic. This is useful in measuring its numeric accuracy, as with this application: (https://bitbucket.org/hexamer/testgoert ... nators.git). Another interesting viewpoint is that of a resonator (see Clay Turner's publications on the topic): http://www.claysturner.com/dsp/digital_resonators.pdfBarnett wrote:The main thing I have learned is that you are using the Fourier math to act like precision filters at each test frequency. For example if your test frequency is at 1 Khz you are only concerned with 1 Khz parts of the input and output. Anything else is rejected.
If you think about it, the Reinsch improvement is pretty esoteric. Except in extreme cases of low precision arithmetic and/or very long input sequences, it's fairly irrelevant. Wikipedia does cite a reference to Reinsch in Bulirsch and Stoer, which is the only academic textbook treatment I know of. If I recall correctly, there are only a couple of pages on it. There are a handful of other academic papers in the realm of numerical accuracy, but it's a pretty obscure topic.Barnett wrote:Having trouble finding anything on Reinsch math in Wiki.
Sorry for the delay, Martin. I have now replaced the older versions with the ones I am currently using for building with VS2015.mnni wrote:Hey Aaron
Is it possible that you could provide the binaries for the PLplot and QT as it looks like they are made for VC++ 2012 the ones found on the download page- resulting in compiling errors when I try to build from source.
thanks for nice and well documented code by the way.
regards Martin