DFFT output images symmetry

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Julian Oviedo
Julian Oviedo 2018 年 5 月 11 日
Hi all.
Im performing DFFT on matlab and I got this signals output. As you can s there is a simetry but not the same. Its right that?:
in that case the sample frecueny is 300Hz and the DFFT input is an array of 300 elements. (What is the input? just a signal I got from a accelerometer).
Do I must put the 0 x value where there is 150Hz?
and

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