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1
GATE ECE 2006
MCQ (Single Correct Answer)
+2
-0.6
The following question refer to wide sense stationary stochastic process:

The parameters of the system obtained in Q. 12 would be

A
first order R-L low pass filter would have $$R = 4\Omega \,L = 1\,H$$
B
first order R-C high pass filter would have $$R = 4\Omega \,C = 0.25F$$
C
tuned L-C filter would have $$L = 4H\,\,C = 4F.$$
D
series R-L-C low pass filter would have $$R = 1\Omega ,\,L = 4H,\,\,C = 4F.$$
2
GATE ECE 2005
MCQ (Single Correct Answer)
+2
-0.6
An output of a communication channel is a random variable 'V' with the probability density function as shown in the figure. The mean square value of 'V' is GATE ECE 2005 Communications - Random Signals and Noise Question 45 English
A
4
B
6
C
8
D
9
3
GATE ECE 2005
MCQ (Single Correct Answer)
+2
-0.6
Noise with uniform power spectral density of N0 W/Hz is passed through a filter H(ω ) = 2exp (-jωtd) followed by an ideal low pass filter of bandwidth B Hz. The output noise power in Watts is
A
2N0B
B
4 N0B
C
8N0B
D
16N0B
4
GATE ECE 2004
MCQ (Single Correct Answer)
+2
-0.6
A 1 mW video signal having a bandwidth of 100 MHz is transmitted to a receiver through a cable that has 40 dB loss. If the effective one-sided noise spectral density at the receiver is 10-20 Watt/Hz, then the signal-to-noise ratio at the receiver is
A
50 dB
B
30 dB
C
40 dB
D
60 dB
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GATE ECE Subjects
Signals and Systems
Representation of Continuous Time Signal Fourier Series Fourier Transform Continuous Time Signal Laplace Transform Discrete Time Signal Fourier Series Fourier Transform Discrete Fourier Transform and Fast Fourier Transform Discrete Time Signal Z Transform Continuous Time Linear Invariant System Discrete Time Linear Time Invariant Systems Transmission of Signal Through Continuous Time LTI Systems Sampling Transmission of Signal Through Discrete Time Lti Systems Miscellaneous
Network Theory
State Equations For Networks Network Elements Network Theorems Two Port Networks Transient Response Sinusoidal Steady State Response Network Graphs Miscellaneous
Control Systems
Signal Flow Graph and Block Diagram Time Response Analysis Compensators Basic of Control Systems Frequency Response Analysis Stability Root Locus Diagram State Space Analysis
Digital Circuits
Logic Gates Boolean Algebra Analog to Digital and Digital to Analog Converters Sequential Circuits Combinational Circuits Logic Families Number System and Code Convertions Semiconductor Memories
General Aptitude
Numerical Ability Verbal Ability
Electronic Devices and VLSI
PN Junction Semiconductor Physics IC Basics and MOSFET BJT and FET
Analog Circuits
Bipolar Junction Transistor FET and MOSFET Oscillators Operational Amplifier 555 Timer Frequency Response Diodes Feedback Amplifier Power Amplifier
Engineering Mathematics
Linear Algebra Calculus Vector Calculus Complex Variable Probability and Statistics Differential Equations Numerical Methods Transform Theory
Microprocessors
Pin Details of 8085 and Interfacing with 8085 Instruction Set and Programming with 8085
Communications
Analog Communication Systems Digital Communication Systems Random Signals and Noise Fundamentals of Information Theory Noise In Digital Communication
Electromagnetics
Maxwell Equations Transmission Lines Uniform Plane Waves Waveguides Antennas Miscellaneous
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