jcg852@jcsneuro.uucp (John C Gallant) (04/24/91)
I'm currently involved in a software project developing a signal processing package for neurological signals, and I've been asked to incorporate a zoom-fft processing option to allow accurate measurement of hum components in the sampled signal. I have found a few references to zoom-fft in journals, and the original material appears to be in a B & K (Bruel and Kjaer (?sp)) technical review in 1981, written by N. Thane - I am having trouble locating this material or any other material which describes the method in detail. Does anyone have an algorithm or code (preferably in C, or Fortran or Pascal if not) for the zoom-fft technique, or even a reference to an article that does describe the method in detail. Oh, zoom-fft is also called 'band selectable Fourier analysis', and is apparently related to the Z-chirp technique (which I haven't researched at all yet). Thanks.. Please note "ReplyTo:" field in header; "From:" field is incorrect. John Gallant Centre for Resource and Environmental Studies phone: +61 6 249 0666 Australian National University fax: +61 6 249 0757 Canberra, Australia email: jcg852@csc1.anu.edu.au -- Please note "ReplyTo:" field in header; "From:" field is incorrect. John Gallant