Implementación de una estación terrena basada en SDR y desarrollo de un algoritmo de procesamiento de imágenes satelitales para catastros.

Abstract

The objectives of this research work were the implementation of an Ground Station based on SDR for the reception of satellite images and the development of an algorithm for processing satellite images oriented to cadastres. The project was made up of 3 main parts such as the design and implementation of the radiant system, for this we opted for a Quadrifilar Helical Antenna which has the necessary characteristics for the objective, also the programming of the earth station using the USRP B210 card and GNUradio free software that filters, amplifies and demodulates the information captured by the antenna, obtaining the gross ones to be able to decode and obtain the satellite images which generated part of a satellite image bank. Finally, through the creation of a data bank made up of Noa images obtained from the previous stages and Landsat 7 and Landsat 8 images obtained from the web, a processing algorithm applied to cadastres was developed which allows studying both the areas dedicated to agriculture such as urban areas, where it was concluded that the most suitable images for this study are Landsat images due to their spatial resolution. It is recommended in the future to use images with a higher spatial resolution to be able to identify more details of the studied areas.