Which process requires low pass filter?

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Question:
Which process requires low pass filter?

1.Up-sampling

2.Down-sampling

3.Up-sampling & Down-sampling

4.None of the mentioned

Posted Date:-2022-05-21 00:01:16

More MCQS Questions and answers

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  5. Channels display multi-path due to
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  8. Different cases of sampling include
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  10. From digital filter we will get the output pulse as the _______ of the current and the previous pulse.
  11. If each pulse of the sequence to be detected is in _____ shape, the pulse can be detected without ISI.
  12. In duobinary signalling method, for M-ary transmission, the number of output obtained is
  13. In M-ary PPM waveform, modulation is effected by
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  15. In precoding technique, the binary sequence is _____ with the previous precoded bit.
  16. In which mixing is easier?
  17. Non uniform quantization includes
  18. Original signal came to be retraced from sampled version using
  19. Reconstruction filter is difficult to implement in hardware.
  20. Shot noise occurs in
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  25. The causes for error performance degradation in communication systems are
  26. The channel may be affected by
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  30. The method in which small amount of controlled ISI is introduced into the data stream rather than trying to eliminate it completely is called as
  31. The method in which the tail of one pulse smears into adjacent symbol interval is called as
  32. The method using which the error propagation in dubinary signalling can be avoided is
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  37. The signal can be reconstructed
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  40. To avoid aliasing
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  46. Which filter does not have sharp output?
  47. Which method should be implemented for reducing bandwidth?
  48. Which process requires low pass filter?
  49. Which requires interpolation filtering?
  50. Which signals are function of time?
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