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11. Equalization techniques can be categorised into _______ and ______ techniques.
a. Linear, non linear
b. Active, passive
c. Direct, indirect
d. Slow, fast
Discuss
Answer: (a).Linear, non linear

12. Equalization is linear if an analog signal is fed back to change the subsequent outputs of the equalizer.
a. True
b. False
c. May be True or False
d. Can't say
Discuss
Answer: (b).False

13. In the context of equalizers, LTE stands for ________
a. Long transversal equalizer
b. Least time-varying equalizer
c. Linear transversal equalizer
d. Linear time-varying equalizer
Discuss
Answer: (c).Linear transversal equalizer

14. Which of the following is not a characteristic of FIR filter?
a. Many zeroes
b. Poles only at z=0
c. Transfer function is a polynomial of z-1
d. Many poles
Discuss
Answer: (d).Many poles

15. Which of the following is not an advantage of lattice equalizer?
a. Simple structure
b. Numerical stability
c. Faster convergence
d. Dynamic assignment
Discuss
Answer: (a).Simple structure

16. Non-linear equalizers are used in applications where channel distortion is not severe.
a. True
b. False
c. May be True or False
d. Can't say
Discuss
Answer: (b).False

17. Which of the following is not a non-linear equalization technique?
a. Decision feedback equalization
b. Maximum likelihood symbol detection
c. Minimum square error detection
d. Maximum likelihood sequence detection
Discuss
Answer: (c).Minimum square error detection

18. For a distorted channel, LTE performance is superior to DFE.
a. True
b. False
c. May be True or False
d. Can't say
Discuss
Answer: (b).False

19. Which of the following does not hold true for MLSE?
a. Minimizes probability of sequence error
b. Require knowledge of channel characteristics
c. Requires the statistical distribution of noise
d. Operates on continuous time signal
Discuss
Answer: (d).Operates on continuous time signal

20. MLSE decodes each received signal by itself.
a. True
b. False
c. May be True or False
d. Can't say
Discuss
Answer: (b).False

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