Im using the C5416 DSK and now Im writing a
code that do the FFT of a signal generated on the same code. Ive used the cbrev
functions, to reverse the bits and after Ive used the RFFT function. But the
results are diferent from the Matlab. In fact, I didnt understand how interpret
the result that RFFT gives. I know it has to result complex numbers, but it
didnt (obviously, it is in C language). But, so, how can I generate the complex
numbers? Ive tried to do the complex numbers with the half of the output vector
as the real and the second half output as the imaginary, but the result
continues wrong. Ive tried to use the Cfft too, but Ive continue with the
problem. I saw the example in the directory of DSPlib, but I didnt understand.
Can you help me with this problem?
Martinhon Engenheiro Eletricista Mestrando em Engenharia Elrica ea: Instrumentao Eletrica Laboratio de Ultra-Som UNESP -
Campus de Ilha Solteira