Hi,
I really need some help. I'm doing a research on 1024 floating-point radix-2
FFT using SIMULINK. After simulating the 2-point, 4-point and 8-point radix-2
FFTs, i decided to jump all the way to the 64-point. However, the indexing
between stages became confusing so i decided to simulate the 16-point radix-2.
Using thesame method for the 8-point, i seperated them into odd and even
pairs, and the 1st stage had its indices adjacent to each other, the second
seperated by 2, the third seperated by 4 and the fourth seperated by 8. i
realised my results didnt match the ones obtained using the Signal Processing
Blockset (fft command). i then tried so many different combinations by trial
and error, all to no avail. i need help getting an algorithm that would help
me solve this problem for both the 16-point radix-2 and any other N-point
radix-2 FFT. Please any help here will be really appreciated and held in high
regard.
thanks, Jim
I really need some help. I'm doing a research on 1024 floating-point radix-2
FFT using SIMULINK. After simulating the 2-point, 4-point and 8-point radix-2
FFTs, i decided to jump all the way to the 64-point. However, the indexing
between stages became confusing so i decided to simulate the 16-point radix-2.
Using thesame method for the 8-point, i seperated them into odd and even
pairs, and the 1st stage had its indices adjacent to each other, the second
seperated by 2, the third seperated by 4 and the fourth seperated by 8. i
realised my results didnt match the ones obtained using the Signal Processing
Blockset (fft command). i then tried so many different combinations by trial
and error, all to no avail. i need help getting an algorithm that would help
me solve this problem for both the 16-point radix-2 and any other N-point
radix-2 FFT. Please any help here will be really appreciated and held in high
regard.
thanks, Jim