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[TI.IE.S25] Digital Communication Systems · Schoenen
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An A/D converter (ADC) with 14 bits can represent different values.
A base band signal of maximum bandwidth B=10000 Hz needs which minimum sampling rate? Hz.
An A/D converter with 10 bits is used with an input signal of (relative) power level K=-10 dB.
Calculate the SNR value: dB.
Hint: Assuming linear region and no clipping.
An A/D converter with 10 and a maximum voltage swing of Vpp=5 has which voltage step size? Volts.
Hint: Fractional numbers can be written as 0.001 or 1e-3.
An A/D converter (ADC) with a resolution of 256 steps needs how many bits?
Measure the signal bandwidth of the dominant received signal
Determine the Signal-to-Noise-Ratio [dB] from the diagram.
Determine the required Eb/N0 [dB] for BPSK in order to have a BER of (just) less than 10-6.
Which type of radio signal do you recognise here?
Calculate the Spectral Efficiency [bits/s/Hz] according to Shannon for an SNR in [dB] of SNR=25 dB:
Spectral Efficiency = [bits/s/Hz]