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Recent questions tagged digitalcommunication
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GATE2017 EC1: 50
In binary frequency shift keying (FSK), the given signal waveforms are $u_{0}(t)=5\, \cos(20000\pi t)\, ;0\leq t\leq T \text{, and } \\ u_{1}(t)=5\, \cos(22000\pi t)\, ;0 \leq t \leq T,$ where $T$ is the bitduration interval and $t$ ... $T$ (in milliseconds) required to have $u_{0}(t)$ and $u_{1}(t)$ uncorrelated is $0.25$ ms $0.5$ ms $0.75$ ms $1.0$ ms
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Nov 17, 2017
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Communications
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gate2017ec1
digitalcommunication
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GATE2017 EC1: 46
A finite state machine (FSM) is implemented using the D flipflop A and B, and logic gates, as shown in the figure below. The four possible states of the FSM are $Q_{A}Q_{B}=00,01,10$ and $11$. Assume that $X_{IN}$ is held at a constant logic level throughout ... states if $X_{IN}=0$ only two or four possible states if $X_{IN}=1$ only two or four possible states if $X_{IN}=0$
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Nov 17, 2017
in
Digital Circuits
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gate2017ec1
digitalcommunication
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GATE2017 EC1: 23
In a digital communication system, the overall pulse shape $p(t)$ at the receiver before the sampler has the Fourier transform $P(f)$. If the symbols are transmitted at the rate of $2000$ symbols per second, for which of the following cases is the inter symbol interference zero?
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Nov 17, 2017
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Communications
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gate2017ec1
digitalcommunication
interference
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