myOFDM tutorial v 01 - mbi1955.com

1/22 OFDM tutorial version Contents 1 Signal description .. 2 analogue signal processing .. 3 source .. 3 analogue transmitter .. 3 spectral properties .. 4 physical channel # analogue .. 6 analogue receiver .. 6 digital signal processing .. 8 digital transmitter .. 8 time discrete channel .. 9 digital 11 why using the cylic prefix ? .. 13 2 A simple simulator .. 18 18 simulation 18 QAM source .. 18 IFFT block .. 18 obtaining and adding the cyclic prefix .. 19 time discrete channel.

31.03.2008 michael.biester@googlemail.com 6/22 example fig. 2-2) normalised OFDM spectrum 2.2.3 physical channel # analogue The physical channel is either characterised by its channel impulse response g(t) or in the frequency

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