Implementación de un analizador de espectro en la banda de 470-698 MHz, utilizando un sistema SDR para el análisis de parámetros de la señal de televisión digital terrestre en sectores de la ciudad de Quito.

Abstract

This Degree Project develops a software prototype to analyze terrestrial digital television (TDT) signals using a software-defined radio (SDR) system. An RTL-SDR device is used to capture wireless signals in the frequency range of 470 to 698 MHz, corresponding to TDT signals in Ecuador. The project consists of four phases: reception, amplification, spectrum analyzer configuration, and results analysis. In the reception phase, digital signals from television channels in Quito are collected. Amplification involves configuring the software and hardware to operate within the selected frequency range, using the One-seg service of the ISDB-Tb standard. In the spectrum analyzer configuration phase, a low-pass filter is applied to reduce noise and process the information. GNU Radio is used as the development tool, compatible with Linux for compatibility reasons. In the results analysis phase, TDT signals from different sectors of Quito are visualized using the SMPlayer software. This Degree Project implements a prototype spectrum analyzer for TDT signals using SDR. It captures, processes, and analyzes digital television signals within the specified frequency range to obtain accurate and visible results.