Digital Signal Processing Lecture Quiz #1
It is an area of science and engineering that has developed over the past 40 years
Analog signal processing
Digital Signal Processing
Quantum mechanics
Circuitry
Which of the following are not drawbacks of DSP?
Conversion of analog to digital form
Slow Processing Speed
Hard-to-use
Finite precision effects
It is defined as any physical quantity that varies with time, space, or any other independent variable or variables
System
Signal Processing
Signal
Quantity
Mathematically, we describe a signal as a fixed value with no relation to independent variables.
True
False
Which of the following signals can be described functionally by expression?
0%
0
0%
0
0%
0
0%
0
A segment of speech may be represented to a high degree of accuracy as a sum of several sinusoids of different amplitudes and frequency.
True
False
Which of the following is not an example of a man-made signal?
Telemetry
Pulsars
Velocity of space craft
Communications
Which of the following is/are an example(s) of (a) natural signal(s)?
Speech signals
X-rays
Popularity ratings
Signal produced by the brain
The TWO general classes of signals can be identified as:
Continous-time signals
Discrete-time signals
Quantized signals
Non-Quantized Signals
These are signals that are defined at each and every instant of time
Continous-time signal
Discrete-time signal
Quantized signal
Non-Quantized signal
These are signals that are defined at discrete instants of time
Continous-time signal
Discrete-time signal
Non-Quantized signal
Quantized signal
These are signals that can assume only a finite number of discrete values.
Continous-time signal
Discrete-time signal
Non-Quantized signal
Quantized signal
These are signals that can assume any value within a given range.
Continous-time signal
Discrete-time signal
Non-Quantized signal
Quantized signal
It is a physical device that performs an operation on a signal
Signal Processing
A/C converter
Digital Processor
System
Most of the signals encountered in science and engineering are digital in nature
False
True
The interface between the analog signal and digital processor is called
Analog to Digital Converter
Digital Processor
Analog processor
Digital to Analog Converter
It is the interface where digital output from the digital signal processor is to be given to the user in analog form
Analog to Digital Converter
Digital Processor
Digital to Analog Converter
Analog processor
A large programmable digital computer or microprocessor that performs desired operations on input signal
Analog to Digital Converter
Digital Processor
Digital to Analog Converter
Analog Processor
i. Analog input signal
ii. D/A converter
iii. Analog output signal
iv. A/D converter
iv. A/D converter
v. Digital Signal Processor
Which of the following shows the correct order of a digital signal processor system?
Which of the following shows the correct order of a digital signal processor system?
I-iv-v-ii-iii
I-iv-ii-v-iii
I-iv-v-iii-ii
I-v-ii-iv-iii
Quantized-Signal -> ambient temperature
Non-Quantized Signal -> ambient temperature measured by digital thermometer
True
False
A continuous-time signal can be represented by a function x(t)
False
True
A discrete-time signal can be represented by a function x(n+t)
True
False
In the function x(nT), what does T represent?
Series of numbers
Constant
Voltage only
Any quantity
In the function x(nT), what does n represent?
Series of numbers
Constant
Voltage only
Any quantity
The following are the basic parts of an A/D converter. Except.
Coder
Quantizer
Sampler
Digital Processor
It is the conversion of a continuous-time signal into a discrete-time signal obtained by taking samples of continuous-time signal at discrete time instants
Sampler
Analog to Digital Converter
Analog Processor
Quantizer
The input of sampler is xa(t) whereas the output is xa(nT) or x(n)
True
False
The output xa(nT) of a sampler, T is called
Sampling value
Sampling parameter
Sampling interval
Sampling index
This is the conversion of a discrete time continuous-valued signal into a discrete time, discrete-valued signal
Sampler
Coder
Quantizer
Digital Processor
In this process, each discrete value xq(n) is represented by a bit binary sequence
Coder
Sampler
Digital Processor
Quantizer
To implement DSP, we must be able to do the following:
Perform numerical operations
Convert digital information, after being processed, back into analog signal
Convert analog signals into digital information
Transmit digital into continuous values
If the operation is linear. The system is called nonlinear.
If the oeration is nonlinear. The system is called linear
True
False
It is a set of rules for implementing the system
Algorithm
Code
Signal Processing
Sample interval
It is characterized by the type of operation that it performs on the signal
System
Processor
Signal
Signal Processing
Other
Please Specify:
digital system can be implemented solely through analog hardware without the use of any software.
True
False
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