Iris Marty

Experience

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  Universidade Presbiteriana Mackenzie

  Aug 2016 - Jun 2017

  Academic Tutor Student

  Providing assistance or tutelage to other students on geral physics subjects.

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  CNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico

  Aug 2017 - Jul 2018

  Scientific Research

  Study of Digital TV Signal Interference in LTE. This work intended to study the interferences from ISDB-Tb (Integrated Services Digital Broadcasting Terrestrial) to the LTE (Long Term Evolution) mobile communication system in the 700 MHz band. Spectrum sensing techniques are used to measure the power of the digital TV signal inside and outside of the LTE band. The software GRC (GNU Radio Companion) along with a software for measurements, developed in Python throughout this project together with the SDR (Software Defined Radio) RTL2832u are used. A controlled environment (Digital TV laboratory of the Mackenzie School of Engineering) is used for testing purposes. Currently, the LTE is operating on 1.8 GHz and 2.5 GHz, however, the 700 MHz channel should be added in July of 2018 over São Paulo, according to Anatel. This study targets to determine the signal noise ratio on above mentioned newly added band to make sure that both systems function correctly in full harmonization. This research project opens the way and allow this kind of study to be performed by students using low-cost SDR equipment. Show less

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  Alstom (Formally Signalling Solutions Limited)

  Sept 2018 - Nov 2020

  Application Engineer Intern

  Assistance in the design and application of hardware solutions according to technical specifications for railway signaling projects; Reporting and document control; Elaboration of drawings of electrical signaling circuits; Elaboration of technical specifications of equipment and procedures; Preparation of materials list; Innovation and implementation of process improvements focused on productivity.