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1
GATE ECE 1988
MCQ (Single Correct Answer)
+2
-0.6
A signal having uniformly distributed amplitude in the interval ( -V, +V ) is to be encoded using PCM with uniform quantization. The signal - to - quantizing noise ratio is determined by the
A
dynamic range of the signal
B
sampling rate
C
number of quantizing levels
D
power spectrum of signal
2
GATE ECE 1988
MCQ (Single Correct Answer)
+2
-0.6
In a digital communication system, transmissions of successive bits through a noisy channel are assumed to be independent events with error probability p. The probability of at most one error in the transmission of an 8 - bit sequence is
A
$$7\left( {1 - p} \right)/8 + p/8$$
B
$${\left( {1 - p} \right)^8} + 8p{\left( {1 - p} \right)^7}$$
C
$${\left( {1 - p} \right)^8} + {\left( {1 - p} \right)^7}$$
D
$${\left( {1 - p} \right)^8} + p{\left( {1 - p} \right)^7}$$
3
GATE ECE 1987
MCQ (Single Correct Answer)
+2
-0.6
Companding in PCM systems leads to improved signal - to - quantization noise ratio. This improvement is for
A
lower frequency components only
B
higher frequency components only
C
lower amplitudes only
D
higher amplitudes only
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GATE ECE Subjects
Network Theory
State Equations For Networks Network Elements Network Theorems Two Port Networks Transient Response Sinusoidal Steady State Response Network Graphs Miscellaneous
Control Systems
Basic of Control Systems Signal Flow Graph and Block Diagram Time Response Analysis Stability Root Locus Diagram Frequency Response Analysis Compensators State Space Analysis
Electronic Devices and VLSI
Semiconductor Physics PN Junction BJT and FET IC Basics and MOSFET
Analog Circuits
Bipolar Junction Transistor FET and MOSFET Oscillators Operational Amplifier 555 Timer Frequency Response Diodes Feedback Amplifier Power Amplifier
Digital Circuits
Number System and Code Convertions Boolean Algebra Logic Gates Combinational Circuits Sequential Circuits Semiconductor Memories Logic Families Analog to Digital and Digital to Analog Converters
Microprocessors
Pin Details of 8085 and Interfacing with 8085 Instruction Set and Programming with 8085
Signals and Systems
Representation of Continuous Time Signal Fourier Series Discrete Time Signal Fourier Series Fourier Transform Discrete Time Signal Z Transform Continuous Time Linear Invariant System Transmission of Signal Through Continuous Time LTI Systems Discrete Time Linear Time Invariant Systems Sampling Continuous Time Signal Laplace Transform Discrete Fourier Transform and Fast Fourier Transform Transmission of Signal Through Discrete Time Lti Systems Miscellaneous Fourier Transform
Communications
Fundamentals of Information Theory Noise In Digital Communication Analog Communication Systems Digital Communication Systems Random Signals and Noise
Electromagnetics
Maxwell Equations Transmission Lines Uniform Plane Waves Waveguides Antennas Miscellaneous
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