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Q#1
Random Variable and Random Process
GATE EC 2014
MCQ
+2 marks
-0.66 marks
Consider a communication scheme where the binary valued signal X satisfies and . The received signal Y = X + Z, where Z is a Gaussian random variable with zero mean and variance . The received signal Y is fed to the threshold detector. The output of the threshold detector X is:
.
To achieve a minimum probability of error , the threshold τ should be
Strictly positive
Zero
Strictly negative
Strictly positive, zero, or strictly negative depending on the nonzero value of
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| Topic | Questions | Attempted | Correct | |
|---|---|---|---|---|
| Network Analysis | 273 | 0 | 0 | |
| Electronic Devices | 69 | 0 | 0 | |
| Analog Electronics | 395 | 0 | 0 | |
| Digital Electronics | 351 | 0 | 0 | |
| Signals and Systems | 22 | 0 | 0 | |
| Control Systems | 224 | 0 | 0 | |
| Communication System | 200 | 0 | 0 | |
| EMFT - ECE | 14 | 0 | 0 | |
| Engineering Mathematics | 24 | 0 | 0 | |
| General Aptitude | 30 | 0 | 0 |