Resumo

GUEVARA TRUJILLO, Lisvan et al. Display system for a tracking radar with reduction of cost, electrical consumption and size. Rev cuba cienc informat [online]. 2021, vol.15, n.4, pp. 76-104.  Epub 01-Dez-2021. ISSN 2227-1899.

A radar display is an electronic device used to represent the information contained in the reflected radio signal in a suitable format. In tracking radars, the information update period on the display is of the order of tenths of a milliseconds. This article describes the design and implementation of a system that allows the information obtained from a tracking radar to be processed and displayed as a substitute for an analog display. The proposed solution consists of hardware supported by single board computers and software developed with the Qt Creator multiplatform development environment. Using a performance analysis tool, the most time-consuming function in the software was identified and then parallel programming was used in this function. This led to a decrease in execution time, increased acceleration and compliant with the radar update period in the devices used, unlike the sequential variant where only one device complied with this time restriction. The results evidenced the feasibility of using Qt Creator, single board computers and parallel programming in radar applications.

Palavras-chave : single board computer; multiplatform software; performance analysis; parallel programming; tracking radar display.

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