Development and implementation of an SDR device-compatible library applied to HFSWR

High Frequency Surface Wave Radars (HFRSW) are used as a technological alternative to sense oceanographic variables in a remote and non-intrusive manner. Currently, a great variety of companies commercialize these products, but at high cost. Seeking higher flexibility and lower economic and computational cost, many researchers propose the inclusion of Software Defined Radio (SDR) in schemes and developments on these devices. The inclusion of SDR has resulted in more compact systems, with lower energy consumption, and more flexibility configuration for each work mode, among other advantages. In this paper we implement the Gurgel methodology to obtain the Doppler Spectrum. We perform a comparison between our own implementation (LaQuinta) and Wera (WERADesk) to identify the applicability and limitations of LaQuinta. We also used LaQuinta to learn a set of LimeSDR-USB skills. We conclude that we need to know the calibration functions in LaQuinta and develop a Front-end RF before the A/D process to improve the measures when using low-cost SDR and own implementation.