Contents
- 1 How do you find the discrete time signal from a continuous time signal?
- 2 How do you convert a discrete signal to a continuous signal?
- 3 Which of the following should be done in order to convert a continuous time signal to a discrete Tim?
- 4 How do you convert discrete-time to continuous time?
- 5 What is the difference between sampling and downsampling?
- 6 How are signals represented as functions of independent variables?
How do you find the discrete time signal from a continuous time signal?
The discrete-time signal is obtained by “taking-samples” of the analog signal every T second.
How do you convert a discrete signal to a continuous signal?
The answer is basically the sampling theory: you need to sample (uniformly) twice of the highest frequency of your analog signal, so you can reconstruct the original continuous time signal precisely by passing the sampled signals (the discrete time signals) through a low pass filter with high enough cut off frequency ( …
What is discrete time signal and continuous time signal?
A continuous signal or a continuous-time signal is a varying quantity (a signal) whose domain, which is often time, is a continuum (e.g., a connected interval of the reals). That is, the function’s domain is an uncountable set. To contrast, a discrete-time signal has a countable domain, like the natural numbers.
What is relation between continuous and discrete-time system?
A system is continuous-time (discrete-time) when its I/O signals are continuous-time (discrete-time). Examples: Despite having different physical origins, these systems have similar mathematical representations.
Which of the following should be done in order to convert a continuous time signal to a discrete Tim?
Which of the following should be done in order to convert a continuous-time signal to a discrete-time signal? Explanation: The process of converting a continuous-time signal into a discrete-time signal by taking samples of continuous time signal at discrete time instants is known as ‘sampling’.
How do you convert discrete-time to continuous time?
- Continuous-Discrete Conversion Methods.
- Zero-Order Hold. ZOH Method for Systems with Time Delays.
- First-Order Hold. FOH Method for Systems with Time Delays.
- Impulse-Invariant Mapping. Impulse-Invariant Mapping for Systems with Time Delays.
- Tustin Approximation.
- Zero-Pole Matching Equivalents.
- Least Squares.
- References.
How is discrete time sampling similar to continuous time sampling?
The basic concept of discrete-time sam- pling is similar to that of continuous-time sampling. Specifically, we multiply a discrete-time sequence by a periodic impulse train, thus retaining every Nth sample and setting the remaining ones to zero (where N denotes the period of the sampling impulse train).
Which is an example of a continuous time signal?
Continuous-time signal: the variable of time is continuous. A speech signal as a function of time is a continuous-time signal. Discrete-time signal: the variable of time is discrete. The weekly Dow Jones stock market index is an example of discrete-time signal.
What is the difference between sampling and downsampling?
Terminology: sampling – creating a discrete signal from a continuous process. downsampling (decimation) – subsampling a discrete signal upsampling – introducing zeros between samples to create a longer signal aliasing – when sampling or downsampling, two signals have same sampled representation but differ between sample locations.
How are signals represented as functions of independent variables?
Signals are represented mathematically as functions of one or more independent variables. Here we focus attention on signals involving a single independent variable. For convenience, this will generally refer to the independent variable as time. There are two types of signals: continuous-time signals and discrete-time signals.