RT Journal Article
T1 Improving the Learning of Superheterodyne Demodulation of Frequency-Division Multiplexing Signals via the Educational Software Tool DOSHER.
A1 Pardo-Quiles, Domingo
A1 Rodríguez, José-Víctor
A1 Juan-Llácer, Leandro
A1 Morales-Sánchez, Juan
A1 Rodríguez-Rodríguez, Ignacio
K1 Electrónica - Estudio y enseñanza
K1 Software - Diseño
AB The knowledge of signal demodulation processes using superheterodyne receivers is ofgreat importance in the field of telecommunications. Superheterodyne receivers receive the currentfocus of many scientists in a wide variety of applications. This topic is part of the syllabus of theCommunication Theory course at the School of Telecommunications of the Polytechnic Universityof Cartagena, Spain. The authors found that the academic performance of the students had notbeen entirely satisfactory in recent years. This situation was aggravated during the COVID-19lockdown. Students had to reinforce their knowledge independently at home, despite the supportprovided by teachers. To the best of the authors’ knowledge, there is a noticeable lack of educationaltools in this area; of those that are available, they exhibit a mismatch with the specific needs ofthis subject. This manuscript shows how the design of the educational software tool DOSHER,tailored to enhance the understanding of superheterodyne receivers, successfully alleviated theaforementioned drawbacks. DOSHER was designed, developed, and applied during the 2020–2021academic year (during the COVID-19 lockdown). The results show that students were not onlyvery satisfied with its use, but they also improved their marks. Analysis of students’ academicperformance in the year of DOSHER implementation showed an average improvement in theirmarks of between 9–12% compared with previous years. In 2021–2022, when DOSHER was fullyoperational from the start, the improvement in terms of pass rate (31%) at the first mid-term wassignificant compared to previous years (<20%).
PB MDPI
YR 2023
FD 2023-08-08
LK https://hdl.handle.net/10630/31449
UL https://hdl.handle.net/10630/31449
LA eng
NO Pardo-Quiles, D., Rodríguez, J., Juan-Llácer, L., Morales-Sánchez, J., & Rodríguez-Rodríguez, I. (2023). Improving the Learning of Superheterodyne Demodulation of Frequency-Division Multiplexing Signals via the Educational Software Tool DOSHER. Electronics, 12(16), 3381. https://doi.org/10.3390/electronics12163381
NO Partial funding for open access charge: Universidad de Málaga
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 20 ene 2026