Design and development of a software-defined radio for the Ecuadorian Army, through the use of a USRP and Simulink tool of Matlab
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Abstract
This research presents a software-defined radio design using the USRP and Simulink software of Matlab. Based on voice digitalization, it was considered necessary to implement the codec G.726 of ITU, in 32 Kbps version, to perform the respective comparison with the 64 Kbps G.711 codec, which was developed as a Simulink's block set. It used appropriate channel coding to provide stability to the system. This was achieved using block codes and interlaced or Trellis, such as Convolutional codes. Finally, both systems are proposed with QPSK modulation and frequency modulation, with the hope of providing a significant contribution and comparative development to SDR systems through the assessment by the BER.
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