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Define Sampling at a Very High Frequency?
By sampling at a very high frequency compared with the signal frequency, we can ensure that we do not miss important information. Another advantage of sampling at a high frequency is that from the samples, we can rebuild the signal almost as well as the original. As displayed on the diagram above, if we plot the inferred signal from the samples, we will obtain a waveform very similar to the original. When an analog signal is sampled, several images of the spectrum occur in the frequency domain.
These images are centred around the base band (original signal) and multiples of the sampling rate. This is comparable to having multiple analog-mixer circuits.
A unity negative feedback control system has an open loop transfer function consisting of two poles, two zeros and a variable positive gain K. The zeros are located at -2 and -1, a
Q. Frequency response of amplifiers? All amplifiers exhibit variations of performance as the signal frequency is changed. The frequency response of an amplifier may be defined
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Using the BC548B BJT transistor amplifier biasing circuit of Lab 2 build an amplifier with the voltage gain of |A V | = 30 v/v ± = 10%. Measure all necessary parameters of the amp
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