You wish to use an 8-bit A/D converter with Vref = 5 V to measure a signal (amplitude = 2 Vpp, frequency = 1 kHz) that includes substantial noise (amplitude ≤ 0.5 Vpp, frequency = 5 kHz). What is the minimum sampling frequency required to ensure that aliasing will not inhibit your ability to accurately interpret the data? What would you do to prevent the high frequency noise from affecting your readings if you do not want to sample at such a hig

Question

Engineering

Ciara Lin

9 May, 09:11

You wish to use an 8-bit A/D converter with Vref = 5 V to measure a signal (amplitude = 2 Vpp, frequency = 1 kHz) that includes substantial noise (amplitude ≤ 0.5 Vpp, frequency = 5 kHz). What is the minimum sampling frequency required to ensure that aliasing will not inhibit your ability to accurately interpret the data? What would you do to prevent the high frequency noise from affecting your readings if you do not want to sample at such a hig

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Answers (1)

Know the Answer?

Salvatore Morrison · Answer 1

The answer is explained below for the sampling frequency

Explanation:

Solution

Recall that:

The frequency Fm1 = 1 kHz

The frequency Fm2 = 5 kHz

Fs = n (2Fm2)

so,

[Fs = 8 * (2 * 5) = 80 8kHz], This the sampling frequency for 8-bit A/D converter

Now,

By increasing quantization level we can also increase the substantial noise ratio