General Digital Signal Processing MCQs

1. The periodogram is _________.

2. Thermal noise can be considered to be ___________.

3. For the signal x ( t ) = 3cos50πt + 10sin300πt – cos100πt , nyquist rate is________.

4. If a Z-Transform is evaluated on the unit circle at evenly spaced points only, it becomes __________.

5. In DFT, a circularly folded sequence is denoted by_________.

6. A non-periodic signal has a period ( T ) of _______.

7. The Discrete Fourier Transform ( DFT ) of unit impulse function is__________.

8. How many clock cycles are required by the DSP processor to execute an instruction?

9. In order to design digital filter, an important condition is that, the response of filter should ___________.

10. Sampling rate conversion by the rational number ( I / D = 1023 / 511 ) needs a polyphase filter with _________.

11. Environmental parameters like temperature, humidity etc. change the performance of __________.

12. The multiplication of two DFTs is equivalent to the circular convolution of their sequences in the _____________.

13. A continuous time signal is said to be symmetrical or even if it satisfies the condition, _________.

14. Which one of the following is not a register associated with the Program Sequencer?

15. Digital F.I.R. filters are so designed that they have linear phase characteristics in the _____________.

16. Continuous time signals have_____________.

17. The condition of periodicity for a discrete time signal can be defined mathematically as ________. (Note: Here Number 'N' is the period of the signal.)

18. MAC is used for ___________.

19. Quantization of a signal_____________.

20. The fundamental period of signal 10sin(12πt) + 4sin(18πt) is______.

21. Which one of the following is a static system?

22. Signals that are statistically stationary can be better estimated with _________.

23. In order to avoid aliasing during the reduction of the sampling rate, we divide the sampling frequency by ___________.

24. Interfacing of digital systems with different sampling rates can be done efficiently by __________.

25. In DFT equation, the symbol for circularly even sequence is _________.

26. Which of the following is a non-causal system?

27. The type-1 chebyshev filter contains __________.

28. A continuous time signal is also known as a/an_______.

29. The ADSP-2100A has ____________.

30. What is the function of a Fourier Transform?

31. The Harvard Architecture referred to the computer architectures that used _____________.

32. The finite impulse response ( F.I.R ) filters are also called_________.

33. The process of reducing the sampling rate by a factor D is called ___________.

34. The parametric methods for Power Spectrum Estimation provide __________.

35. How many stages of FFT algorithm are there for an 8-Point DFT?

36. The MUSIC ( Multiple Signal Classification ) method is used for ____________.

37. The frequency warping effect occurs because of___________.

38. Digital Transmultiplexers are devices for converting ___________.

39. Any arbitrary signal can be expressed as the sum of two signals. These two signals must be_________.

40. Linear predictive coding is normally used to achieve __________.

41. The ADSP-21XX family supports __________.

42. Comb Filters can be viewed as ___________.

43. Power signals are the signals having ________.

44. An analog filter is stable if the poles lie ________________.

45. DFT is obtained from DTFT by putting____________.

46. In a Butterworth approximation for bilinear transformation, we have,

47. For the signal x ( t ) = 3cos600πt + 2cos1800πt , the folding frequency is __________.

48. The circular frequency shift property is also known as __________.

49. The non-parametric methods for power spectrum estimation suffer from________.

50. The Flanging effect is a ____________.

51. Which of the following systems is unstable?

52. The term 'filter' is used to describe a ___________.

53. In Multirate Digital Signal Processing, the sampling rate of signals __________.

54. The signal cos(0.01πn) is_________.

55. The ALU of the ADSP 21XX family has two input ports named __________.

56. The sampling theorem holds true for the following condition________. (Note: Here 'fs' is the sampling frequency, and 'w' is the maximum frequency of the continuous time signal x (t)).

57. Which one of the following is not a universal register of the ADSP21XX family?

58. A discrete time signal can be best analyzed by____________.

59. Which of the following is a time invariant system?

60. The Z-Transform is used to analyze ____________.

61. The condition of periodicity for a continuous time signal can be defined mathematically as _______. (Note: Here 'To' is the fundamental period.)

62. A stationary random process is a_________.

63. The ARMA Linear Model is a __________.

64. In a Butterworth low pass filter, we get a maximally flat response of ___________.

65. The overlap save method is for the ___________.

66. Anti-aliasing filter is basically a________.

67. Which of the following is a linear system?

68. The Kaiser window design is used for ____________.

69. The aliasing problem can be better handled by the__________.

70. A digital signal composed of a pulse of positive voltage represents a(n) ____.

71. A(n) ____ signal is designed to represent computer data in a discrete high (on) or low (off) state.

72. In the accompanying figure, the text ?click to add title? is the title ____.

73. Each persons digital shadow is ____.