The Designer's Guide Community Forum
https://designers-guide.org/forum/YaBB.pl Design >> Mixed-Signal Design >> How to choose the window for fft? https://designers-guide.org/forum/YaBB.pl?num=1149089868 Message started by material on May 31st, 2006, 8:37am |
Title: How to choose the window for fft? Post by material on May 31st, 2006, 8:37am I wanted to analyse the frequency domain information by do fft to the tran signal. When I choose the window for fft, different window will give a dfferent result and really a big difference. I used such window like rectangle hann hamm or so on. How to select the right window for fft? Thanks |
Title: Re: How to choose the window for fft? Post by sheldon on May 31st, 2006, 7:40pm Material, If you using Spectre and analyzing non-sampled circuits, op-amps, etc., then use the Fourier component. If you are simulating a Nyquist ADC/DAC /SH use the rectangular function. If you are simulating an Over-sampled ADC/DAC, then use the Hann window function. The details of the simulation setup for Nyquist and Over-sampled cases have been discussed in previous appends. Best Regards, Sheldon |
The Designer's Guide Community Forum » Powered by YaBB 2.2.2! YaBB © 2000-2008. All Rights Reserved. |