If the spectrum of a signal is discrete and periodic, then the corresponding time domain signal is_____. ( ) A: continue and periodic B: continue and aperiodic C: discrete and periodic D: discrete and aperiodic
If the spectrum of a signal is discrete and periodic, then the corresponding time domain signal is_____. ( ) A: continue and periodic B: continue and aperiodic C: discrete and periodic D: discrete and aperiodic
Settling time and velocity are related to the water depth in discrete particle settling. A: True B: False
Settling time and velocity are related to the water depth in discrete particle settling. A: True B: False
In the time domain， the procedure of restoring the original continuous-time signal from discrete sample values is called_______
In the time domain， the procedure of restoring the original continuous-time signal from discrete sample values is called_______
The following statements about the sampling is incorrect. （ ） A: Sampling is a bridge between continuous-time signals and discrete-time signals. B: Sampling is a bridge between continuous-time system and discrete-time system. C: Sampling is a bridge between discrete-time signals and discrete-time system. D: Sampling is a bridge between the various analytical tools of the continuous-time version and discrete-time version.
The following statements about the sampling is incorrect. （ ） A: Sampling is a bridge between continuous-time signals and discrete-time signals. B: Sampling is a bridge between continuous-time system and discrete-time system. C: Sampling is a bridge between discrete-time signals and discrete-time system. D: Sampling is a bridge between the various analytical tools of the continuous-time version and discrete-time version.
Continuous time signal [img=147x25]1803a1dcf5c7cbf.png[/img], t in seconds. After sampling, a discrete-time sequence is obtained as [img=117x39]1803a1dcfee5a0b.png[/img] , then the sampling frequency is A: 4000Hz B: [img=60x43]1803a1dd082ce72.png[/img] C: 8000 Hz D: 2000 Hz
Continuous time signal [img=147x25]1803a1dcf5c7cbf.png[/img], t in seconds. After sampling, a discrete-time sequence is obtained as [img=117x39]1803a1dcfee5a0b.png[/img] , then the sampling frequency is A: 4000Hz B: [img=60x43]1803a1dd082ce72.png[/img] C: 8000 Hz D: 2000 Hz
what is an analog signal? A: Analog signal is a continous values B: Analog signal is a discrete values C: Analog signal is sometimes continous,sometimes discrete
what is an analog signal? A: Analog signal is a continous values B: Analog signal is a discrete values C: Analog signal is sometimes continous,sometimes discrete
Given a discrete time system block diagram[img=495x165]1803a2f9b95475b.png[/img]determine its transpose structure. A: [img=394x194]1803a2f9c75e364.png[/img] B: [img=387x180]1803a2f9d557756.png[/img] C: [img=423x140]1803a2f9e41568d.png[/img] D: [img=402x148]1803a2f9f1ed61a.png[/img]
Given a discrete time system block diagram[img=495x165]1803a2f9b95475b.png[/img]determine its transpose structure. A: [img=394x194]1803a2f9c75e364.png[/img] B: [img=387x180]1803a2f9d557756.png[/img] C: [img=423x140]1803a2f9e41568d.png[/img] D: [img=402x148]1803a2f9f1ed61a.png[/img]
Determine<br/>whether the following argument is valid or not. “Every computer<br/>science major takes discrete mathematics. Natasha is taking discrete<br/>mathematics. Therefore, Natasha is a computer science major.” ( ) A: valid B: invalid
Determine<br/>whether the following argument is valid or not. “Every computer<br/>science major takes discrete mathematics. Natasha is taking discrete<br/>mathematics. Therefore, Natasha is a computer science major.” ( ) A: valid B: invalid
An analog signal x(t)=4sin(0.34πt) is sampled with the frequency 20Hz , then the expression of the discrete time signal x [n] is A: x[n]=4sin(0.034πn) B: x[n]=4sin(0.017πn) C: x[n]=4cos(0.034πn) D: x[n]=4cos(0.017πn)
An analog signal x(t)=4sin(0.34πt) is sampled with the frequency 20Hz , then the expression of the discrete time signal x [n] is A: x[n]=4sin(0.034πn) B: x[n]=4sin(0.017πn) C: x[n]=4cos(0.034πn) D: x[n]=4cos(0.017πn)
Which of the following actions or devices can restore or rconstruct a discrete-time signal into a continuous-time signal by interpolation method? ( ) A: Anti-aliasing B: A/D converter C: Anti-image D: D/A converter
Which of the following actions or devices can restore or rconstruct a discrete-time signal into a continuous-time signal by interpolation method? ( ) A: Anti-aliasing B: A/D converter C: Anti-image D: D/A converter