1
GATE ECE 2013
MCQ (Single Correct Answer)
+1
-0.3
The bit rate of a digital communication system is R kbits/s. The modulation used is 32-QAM. The minimum bandwidth required for ISI free transmission is
2
GATE ECE 2004
MCQ (Single Correct Answer)
+1
-0.3
In a PCM system, if the code word length is increased from 6 to 8 bits, the signal to quantization noise ratio improves by the factor
3
GATE ECE 2004
MCQ (Single Correct Answer)
+1
-0.3
In the output of a DM speech encoder, the consecutive pulses are of opposite polarity during time interval t1 $$ \le $$ t $$ \le $$ t2. This indicates that during this interval
4
GATE ECE 2002
MCQ (Single Correct Answer)
+1
-0.3
For a bit-rate of 8 kbps, the best possible values of the transmitted frequencies in a coherent binary FSK system are
GATE ECE Subjects
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Network Theory
Control Systems
Electronic Devices and VLSI
Analog Circuits
Digital Circuits
Microprocessors
Signals and Systems
Discrete Fourier Transform and Fast Fourier Transform Discrete Time Signal Fourier Series Fourier Transform Continuous Time Signal Laplace Transform Fourier Transform Representation of Continuous Time Signal Fourier Series Transmission of Signal Through Continuous Time LTI Systems Miscellaneous Sampling Continuous Time Linear Invariant System Discrete Time Linear Time Invariant Systems Discrete Time Signal Z Transform Transmission of Signal Through Discrete Time Lti Systems
Communications
Electromagnetics
General Aptitude