ECE :: Signals and Systems
- A system is defined as
- Nyquist bit rate formula defines the theoretical maximum bit rate for which channel
- The difference between the highest and the lowest frequencies of a signal is known as
- The equation y(t) = a x(t)+b comes under which system
- Which of the following is the one of the property of unit impulse δ(t) is
- The Parseval's theorem states that the energy in the time-domain representation of a signal is equal to the energy in the frequency domain representation normalized by
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The given system is characterized by the differential equation d2y(t)/dt2-dy(t)/dt-2y(t)= x(t). Then the system is:
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What form of waveform is shown here?
- For a band pass signal extends from 1 KHz to 2 KHz. Then the minimum sampling frequency that needed to retain all information of the sampled signal is
- A continuous-time periodic signal x(t), having a period T, is convolved with itself. Then the resulting signal is
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A.
Any combination of components or elements that has a useful function.
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B.
Any combination of elements that has a single input and a single output.
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C.
Any closed volume for which all the inputs and outputs are known.
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D.
Any physical quantity that varies with time,space or any other independent variable
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A.
Linear and stable
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