Introduction to Digital Signal Processing

A _______ is a random phenomenon arising due to some sort of a disturbance in the system and in most cases is undesirable.

• Noise

• Hiss

• Signal

Example of signal

• Audio

• Video

• Speech

• Temperature

• All answers are correct

This parameter is used to interpret the information content of a signal.

• Amplitudes

• Frequencies

• Phases

• All parameters

Below are sample of signal, except

• Speech

• ECG

• EEG

• Noise

Analog system used this device/s to change its characteristics in analog form.

• Filters

• Frequency analyzer

• Frequency multipliers

• All answers are correct

• All answers are wrong

Digital signal processing provides an alternative method for processing the analog signal.

• TRUE

• FALSE

This is the interface of analog signal and digital processor

• Analog-to-digital (A/D) converter

• Digital-to-analog (D/A) converter

• Both answers are correct

• Both answer are wrong

This is needed if the end user is in analog form and need to interface from digital domain to analog domain.

• Analog-to-digital (A/D) converter

• Digital-to-analog (D/A) converter

• Both answers are correct

• Both answer are wrong

Classification of Signals include the following, except

• M-dimensional signal

• One-dimensional signal

• N-dimensional signal

• Multichannel Signal

Signal Model

• Random

• Deterministic

• both

• none