## 2 Proposed Scheme and RF Transmission Algorithm
### Signal Decryption
In future work, a classifier system for the self-diagnosis of pathologies can be developed as a means of comparison for the doctor. Conceptualization, J.R.C.-V. and R.R.-V.; methodology, C.R.-U. and J.R.C.-V.; software, C.R.-U. and E.I.-G.; validation, J.R.C.-V. and R.R.-V.; formal analysis, C.R.-U. and R.R.-V.; investigation, J.R.C.-V. and R.R.-V.; resources, J.R.C.-V. and R.R.-V.; data curation, C.R.-U. and E.I.-G.; writing--original draft preparation, C.R.-U., J.R.C.-V. and R.R.-V.; writing--review and editing, E.I.-G. and R.R.-V.; visualization, E.I.-G. and J.R.C.-V.; supervision, E.I.-G. and J.R.C.-V.; project administration, J.R.C.-V. and R.R.-V. All authors have read and agreed to the published version of the manuscript. This research was funded by Tecnologico Nacional de Mexico (TecNM) research projects, grant numbers: 20133.24-P and 20586.24-P.

Not applicable. The original contributions presented in the study are included in the article. Further inquiries can be directed to the corresponding author. The authors declare no conflicts of interest. ## Abbreviations

The following abbreviations are used in this manuscript:

ESO extended state observer

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