On Sun, 6 May 2012 20:08:59 +0200, Joachim Franek wrote: > Joachim Franek > > PIBF (Physik Ingenieurbüro Franek) > Ernst-Reuter-Str. 8 > 63486 Bruchköbel > 06181-907353 > USt.-IdNr: DE187574683
Meeting half way would likely get a very wet and/or COLD! Reykjavík anyone 8-) > For one frequency from siggen you get a response from > the drive: also a sine function. Recording both with halscope > you have to measure ampitude and phase: > use levenberg-marquardt form octave for this. > https://staff.ti.bfh.ch/sha1/Octave/index/f/leasqr.html > > http://en.wikipedia.org/wiki/Levenberg%E2%80%93Marquardt_algorithm > > https://engineering.purdue.edu/kak/courses-i-teach/ECE661/HW5_LM_handout.pdf > (Look for other libs etc the wiki page: implementations.) > > Result from lm-algo is amplitude and phase shift. > > Repeat this step for other frequencies and > plot aplitude and phaseshift as function of frequency. These look like very good suggestions and references. Now if I could make enough time around work to play with this it would be fun, but work beckons -- back to the radar processing... ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
