DOI:
https://doi.org/10.14483/22484728.15160Publicado:
2019-07-26Número:
Vol. 13 Núm. 2 (2019)Sección:
Visión de CasoRaspberry PI 3 RF signal generation system
Sistema de generación de señales RF mediante raspberry PI 3
Palabras clave:
Fractional divisor, Radiofrequency, Raspberry Pi, RF generator (en).Palabras clave:
Divisor fraccional, Radiofrecuencia, Raspberry Pi, Generador RF (es).Descargas
Resumen (en)
Radio frequency signal generators (RF) are instruments used to test reception equipment and RF components like filters, amplifiers, attenuators, among others. On the other hand, they reinforce the teaching-learning processes and they are widely used in research in the telecommunications field. This document provides the first stage of a low-cost signal generator design by using RaspBerry Pi 3, with the documentary exploration about this kind of applications. After that, a recognition of the RaspBerry Pi 3 is done at hardware and software level. Finally, an application of an FM signal generator with RaspBerry in a frequency of 101.3 MHz is evaluated, which does not require any additional hardware. This signal was captured using a spectrum analyzer, which determined good quality of the modulated signal in terms of power, bandwidth and SNR (Signal Noise Ratio). However, there are some unwanted harmonic components
Resumen (es)
Los generadores de señal de Radio Frecuencia (RF) son instrumentos usados para probar equipos de recepción y componentes RF como filtros, amplificadores, atenuadores, entre otros. Por otro lado, refuerzan procesos de enseñanza-aprendizaje y son ampliamente usados en investigación en el área de telecomunicaciones. Este documento evidencia la primera etapa para el diseño de un generador de señal de bajo costo mediante RaspBerry Pi 3, con la exploración documental sobre este tipo de aplicaciones, posteriormente se procede al reconocimiento de la RaspBerry Pi 3 a nivel de hardware y software, finalmente se evalúa una aplicación de generador de señal FM con RaspBerry a una frecuencia de 101.3 MHz, la cual no requiere hardware adicional. Esta señal fue captada mediante un analizador de espectros determinando una buena calidad de la señal modulada en términos de potencia, ancho de banda y SNR (Signal Noise Ratio), sin embargo, se evidencian fuertes componentes armónicos no deseados.
Referencias
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