Wed, 01/01/2014 - 09:25 am
I've been using Igor to simulate a signal with 2 electric fields modeled as complex gaussian. We've run into a problem with the magnitude of the convolution. When we use simpler gaussian and do the convolution by hand, we get an equation that is approximately 1000 times smaller. For example when looking at a gaussian with an equation of 10*exp^(-(x- 3.5565)^2*(5.77^2/2)). The of the product from Igor is 30718*exp(-((x+1.2513e-15)/0.34662)^2) and by hand the equation is 30.718*exp(-((x-3.5885e-18)/0.34662)^2). We are mostly concerned with difference in the amplitude because this value corresponds directly to an experimental signal.
If any one know the reason for the 3 orders of magnitude difference between the Igor and by hand calculation, if it is something that comes out of the math from the Igor convolution or if there is a reason that it is added, please let me know.
January 1, 2014 at 01:41 pm - Permalink