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Digital Signal Processing problems


  • 1. Which type of programming is typically used for digital signal processors?

  • Options
  • A. Assembly language
  • B. Machine language
  • C. C
  • D. None of the above
  • Discuss
  • 2. Which is not an A/D conversion error?

  • Options
  • A. Differential nonlinearity
  • B. Missing code
  • C. Incorrect code
  • D. Offset
  • Discuss
  • 3. Which is a typical application of digital signal processing?

  • Options
  • A. Noise elimination
  • B. Music signal processing
  • C. Image processing
  • D. All of the above
  • Discuss
  • 4. For a 4-bit DAC, the least significant bit (LSB) is ________.

  • Options
  • A. 6.25% of full scale
  • B. 0.625% of full scale
  • C. 12% of full scale
  • D. 1.2% of full scale
  • Discuss
  • 5. In a digital representation of voltages using an 8-bit binary code, how many values can be defined?

  • Options
  • A. 16
  • B. 64
  • C. 128
  • D. 256
  • Discuss
  • 6. A binary-weighted-input digital-to-analog converter has an input resistor of 100 kΩ. If the resistor is connected to a 5 V source, current through the resistor is ________.

  • Options
  • A. 50 mA
  • B. 50 µA
  • C. 5 mA
  • D. 500 µA
  • Discuss
  • 7. Which term applies to the maintaining of a given signal level until the next sampling?

  • Options
  • A. Holding
  • B. Aliasing
  • C. Shannon frequency sampling
  • D. "Stair-stepping"
  • Discuss
  • 8. What is the result of taking more samples during the quantization process?

  • Options
  • A. More errors in the analog-to-digital conversion
  • B. More bit requirements
  • C. More accurate signal representation
  • D. More bit requirements and more accurate signal representation
  • Discuss
  • 9. Which A/D conversion method has a fixed conversion time?

  • Options
  • A. Single-slope analog-to-digital converter
  • B. Dual-slope analog-to-digital converter
  • C. Digital-ramp analog-to-digital converter
  • D. Successive-approximation analog-to-digital converter
  • Discuss
  • 10. Which type of ADC quantizes the analog signal into a stream of bits whose amount corresponds to the signal level?

  • Options
  • A. Successive approximation
  • B. Sigma-delta
  • C. Dual-slope
  • D. None of the above
  • Discuss

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