Implementación de la transformada rápida de fourier con nios II y presentación de la misma en monitor vga

Abstract

This project consists on the implementation of the algorithm for Fast Fourier Transform (FFT - Fast Fourier Transform) using the ALTERA DE2 educational development board, based on FPGA Altera Cyclone II, this consists of embedded memories and NIOS II PROCESSOR SOFTCORE, which aids in the processing and presentation of data through the use of a VGA monitor interface. For a successful implementation of this project it is divided into three stages: The first stage is based on a graphical interface program developed in MATLAB GUIDE, which allows the user to generate basic signals (sine, cosine, etc.), and set its characteristics (amplitude and frequency) and generate analog modulations AM (Amplitude Modulation) and FM (Frequency Modulation) and send to the Altera DE2 board via serial communication the sampled signal. The second stage consists in the reception of these sampled data DE2 Altera card and the calculation of the fast Fourier transform by an algorithm implemented in C language. Finally, the third stage to display the transform on a VGA monitor.