Which waveforms are also called as line codes?

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Which waveforms are also called as line codes?

1.PCM

2. PAM

3.FM

4.AM

Posted Date:-2022-05-20 23:06:43

More MCQS Questions and answers

  1. Phase encoded group consists of
  2. Adaptive DPCM is used to
  3. Application of phase encoded binary signals are
  4. Choosing a discrete value that is near but not exactly at the analog signal level leads to
  5. Companding is the process of
  6. Delta modulation uses _____ bits per sample.
  7. DPCM encodes the PCM values based on
  8. Examples of PCM waveforms are
  9. In non uniform quantization, the quantization noise is _______ to signal size.
  10. In PCM encoding, quantization level varies as a function of ________
  11. In PCM the samples are dependent on ________
  12. In pulse modulation, reciprocal of T(time) is
  13. In quantization process, the amount of quantization noise is _______________ to number of levels.
  14. In which waveform logic 1 and logic 0 are represented by opposite one half bit wide pulses?
  15. In which waveform logic 1 is represented by equal amplitude alternating pulses?
  16. In which waveform logic 1 is represented by half bit wide pulse and logic 0 is represented by absence of pulse?
  17. In which waveform one is represented by half bit wide pulse positioned during the first half and zero is represented by half bit wide pulse positioned in the second half?
  18. Non uniform quantization provides better quantization for
  19. NRZ-S is complement of _______
  20. Quantization noise can be reduced by ________ the number of levels.
  21. Sample resolution for LPCM ____ bits per sample.
  22. Saturation noises can be avoided or reduced by
  23. Signal to noise ratio increases as ___________ increases.
  24. Signal to noise ratio is infinite when
  25. The _____________ corresponds to average quantization noise power.
  26. The distortion in quantization is called as
  27. The length of the code-word obtained by encoding quantized sample is equal to
  28. The main sources of corruption are
  29. The output SNR can be made independent of input signal level by using
  30. The reasons for the threshold effect are
  31. The return to zero waveform consists of
  32. The size of the quantile interval is called as
  33. The standard value of A in A-law is
  34. Timing jitter can be reduced by
  35. Uniform quantization provides better quantization for
  36. What is bit depth?
  37. What is the standard value of μ in μ-law ?
  38. When channel bandwidth is greater than the pulse bandwidth, it causes
  39. When pulse code modulation is applied to non binary symbols we obtain waveform called as
  40. Which binary waveform uses three levels?
  41. Which method is called as differential encoding?
  42. Which method is preferred in magnetic tape recording?
  43. Which type is used and preferred in digital logic circuits?
  44. Which type of quantization is most preferable for audio signals for a human ear?
  45. Which value of μ corresponds to linear amplification?
  46. Which waveform has the feature of error detection?
  47. Which waveform scheme introduces bandwidth compression?
  48. Which waveform type has better noise immunity?
  49. Which waveform type has the feature of clocking?
  50. Which waveforms are also called as line codes?
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