ETFE and Frequency Data - Resolution of Frequency

[ms]

I am using the ETFE function to look at the frequency response of my data. I am using 2048 points and the sampling rate is 100Hz (1/100sec). My code looks like this:

ETFE_DATA = etfe(data, 100, 2048);

I noticed the Frequency has a resolution of of 50/2048 (or 0.0244Hz). Shouldn't the resolution be twice that, 50/2048 0.0488Hz?

Similar in the help for FFT, to create your frequency vector you would use:

(100/2)*linspace(0,1,2048/2+1)%you will see the frequency increments are 0.0488Hz.

Thanks!

[dannyra9]

Dear Mr Silverton

I'd like to introduce my self. I am very interested in your research, mainky for personla reason but also slightly business. I am very interested in the properties of ETFE.

If you are doing a dissertation I would greatly appreciate the opportunity to knowledge exchange.

Thanks for your time.

Daniel


ms <silve...@gmail.com> wrote in message <3fdc8659-002b-4c96...@googlegroups.com>...