Desarrollo de un algoritmo en matlab para la optimización de la resolución de una tarjeta USRP B210 para aplicaciones SDRadar.

Abstract

The main objective of the present work was to develop a MATLAB algorithm that allows the optimization of the resolution of a Universal software radio peripheral (USRP) B210, analyzing the limitations and characteristics of it to develop software defined radar applications (SDR). In the development of the algorithm was implemented a frequency modulated continuous wave (FMCW) radar by implementing a chirp signal, considering that 25 MHz is the maximum bandwidth the card can provide resulting in a resolution of a 6 meters. The method used to optimize the resolution of the card is to transmit a certain number of signals with different bandwidth resulting in a different resolution, detecting and storing the target in a matrix. It was established that with 14 measurements al a bandwidth space of a 0.5 MHz between each signal, it is the most optimal to improve the resolution of the card. Considering the limitations that the algorithm presents, such as the determination of two zones with a number of samples of 94 targets from 6 to 100 meters: where the first zone is limited by a measurements error of e<1 m, in the second zone with a measurements error 1m<=e<2m with 69,15% and 30,85% of objectives detected respectively, thus determining its effectiveness and reliability. From the results obtained it is recommended to use the algorithm in SDR applications such as objective detection, topographic applications or in a synthetic aperture radar (SAR).