DSP Class on FFT

Why Fast Fourier Transform

Direct computation of DFT requires NxN complex multiplication and N(N-1) complex  addition – Hence it require more time

FFT utilizes the symmetry properties of trigonometric functions

FFT requires only N log N computation, hence the speed may increase in the order of logN/N

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DSP Class slide

Dear Students


A DFT is a Fourier that transforms a discrete number of samples of a time wave and converts them into a frequency spectrum.


             You can download the presentation on Discrete Fourier Transform by clicking here

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Instruction Set of 8085

The instruc­tions fall into the following functional categories:

Data Transfer Croup:

The data transfer instructions move data between registers or between memory and registers.

MOV Move

MVI Move Immediate

LDA Load Accumulator Directly from Memory

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