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Appendix D – Simulink Models

D.1 – The relay algorithm

This is the main model, notice the ADC block in red, the green Digital Output block

controlling the LEDs and the twin DFTs coloured blue and orange.

The interior of the DFT blocks, expecting sine and cosine signals from the oscillator block

depicted below. The input signal is converted to the frequency domain – outputting a complex

signal whose amplitude and phase trigger the relays.

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MATLAB EMBEDDED IDE LINK 4 Guida Utente Pagina 36