Digital Signal Processing –
Midterms test questions and
answers
Signal
Any physical quantity that varies with time, space (x, y, z coordinate
plane) or any other independent variable or variables
Signal
Mathematically describe as a function of one or more independent
variables. Examples: Speech Signals and EEG, ECG, EOG Signals
System
Physical device that performs an operation on a signal that responds to a
stimulus or force
Continuous System
Processes analog signals, example
Discrete System
Processes digital signals
Processed
When a signal passes through a system, the signal is said to have been
_________
Signal Processing
, Operation performed on signal by the system
Signal Processing
·Process of operation in which the characteristics of signal amplitude,
shape, phase, frequency, etc. undergoes change
Digital
Operating by use of discrete signals to represent data in the form of
numbers
Signal
Parameter that can be varied in such a way as to convey information
Processing
Series of operation performed according to programmed instructions
Digital Signal Processing
It is changing or analyzing information which is measured as discrete
sequences of numbers
Target Detection
Position and velocity estimation
Noise Reduction
Reducing background noise
Speech Recognition
Differentiating between various speech sounds
Synthesis of Artificial Speech
Text to speech systems for blind
Telephony
Transmission of information in digital form via telephone lines, modern
technology, mobile phones
Content Based Image Retrieval
Browsing, searching, and retrieving images from database
Compression
Reducing the redundancy in the image data to optimize transmission or
storage
Discrete Time Signal
Midterms test questions and
answers
Signal
Any physical quantity that varies with time, space (x, y, z coordinate
plane) or any other independent variable or variables
Signal
Mathematically describe as a function of one or more independent
variables. Examples: Speech Signals and EEG, ECG, EOG Signals
System
Physical device that performs an operation on a signal that responds to a
stimulus or force
Continuous System
Processes analog signals, example
Discrete System
Processes digital signals
Processed
When a signal passes through a system, the signal is said to have been
_________
Signal Processing
, Operation performed on signal by the system
Signal Processing
·Process of operation in which the characteristics of signal amplitude,
shape, phase, frequency, etc. undergoes change
Digital
Operating by use of discrete signals to represent data in the form of
numbers
Signal
Parameter that can be varied in such a way as to convey information
Processing
Series of operation performed according to programmed instructions
Digital Signal Processing
It is changing or analyzing information which is measured as discrete
sequences of numbers
Target Detection
Position and velocity estimation
Noise Reduction
Reducing background noise
Speech Recognition
Differentiating between various speech sounds
Synthesis of Artificial Speech
Text to speech systems for blind
Telephony
Transmission of information in digital form via telephone lines, modern
technology, mobile phones
Content Based Image Retrieval
Browsing, searching, and retrieving images from database
Compression
Reducing the redundancy in the image data to optimize transmission or
storage
Discrete Time Signal
