Análisis comparativo de un sistema de radio enlaces entre la tecnología xpic y estándar para una red de transmisión en la banda de frecuencia shf.

Abstract

This project it was emphasized in the creation of a simulated program to compare two types of radio-relay transmissions: the first is a standard radio link and the second type is a radio link implemented with XPIC technology; developed in a simulated way using LabVIEW software, in the frequency band SHF (Super High Frequency, Super High Frequency) and modulating the signal with QAM technology. At the beginning, the parameters for point-to-point (P2P) radio links in the band the 8 GHz and 15 GHz using the PATHLOSS program because we needed information on the types of antennas, antenna power, power of the transmission and reception equipment, the loss of the signal at a distance, etc., values that the program could offer us and validate them by means of equations studied in the race process. With the previously obtained, it was possible to simulate the communication of the radio links using the LabVIEW software, a program designed to develop or implement applications in different fields of engineering, and to visualize the data and the graph of the signals to compare the two radio links noticing the difference with the use of the XPIC. If we use the QAM modulation technique, quadrature amplitude modulation, in radio links, it is because it allows the transmission of digital bits or two analog signals and to recover the transmitted signal the XPIC technique is applied, because it processes and combines the signals of the two reception routes to recover the original signals.