Q.1
When the frequency band is selected we can specify the sampling rate and the characteristics of the pre filter, which is also called as __________ filter.
  • a) Analog filter
  • b) Anti aliasing filter
  • c) Analog & Anti aliasing filter
  • d) None of the mentioned
Q.2
What are the main characteristics of Anti aliasing filter?
  • a) Ensures that bandwidth of signal to be sampled is limited to frequency range
  • b) To limit the additive noise spectrum and other interference, which corrupts the signal
  • c) All of the mentioned
  • d) None of the mentioned
Q.3
The selection of the sampling rate Fs=1/T, where T is the sampling interval, not only determines the highest frequency (Fs/that is preserved in the analog signal but also serves as a scale factor that influences the design specifications for digital filters.
  • a) True
  • b) False
Q.4
What is the configuration of system for digital processing of an analog signal?
  • a) Analog signal|| Pre-filter -> D/A Converter -> Digital Processor -> A/D Converter -> Post-filter
  • b) Analog signal|| Pre-filter -> A/D Converter -> Digital Processor -> D/A Converter -> Post-filter
  • c) Analog signal|| Post-filter -> D/A Converter -> Digital Processor -> A/D Converter -> Pre-filter
  • d) None of the mentioned
Q.5
In DM, further the two integrators at encode are replaced by one integrator placed before comparator, and then such system is called?
  • a) System-delta modulation
  • b) Sigma-delta modulation
  • c) Source-delta modulation
  • d) None of the mentioned
0 h : 0 m : 1 s