enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Discrete time and continuous time - Wikipedia

   en.wikipedia.org/wiki/Discrete_time_and...

   Unlike a continuous-time signal, a discrete-time signal is not a function of a continuous argument; however, it may have been obtained by sampling from a continuous-time signal. When a discrete-time signal is obtained by sampling a sequence at uniformly spaced times, it has an associated sampling rate. Discrete-time signals may have several ...

3. Bilinear transform - Wikipedia

   en.wikipedia.org/wiki/Bilinear_transform

   The bilinear transform is a first-order Padé approximant of the natural logarithm function that is an exact mapping of the z-plane to the s-plane.When the Laplace transform is performed on a discrete-time signal (with each element of the discrete-time sequence attached to a correspondingly delayed unit impulse), the result is precisely the Z transform of the discrete-time sequence with the ...

4. Discrete system - Wikipedia

   en.wikipedia.org/wiki/Discrete_system

   A computer is a finite-state machine that may be viewed as a discrete system. Because computers are often used to model not only other discrete systems but continuous systems as well, methods have been developed to represent real-world continuous systems as discrete systems. One such method involves sampling a continuous signal at discrete time ...

5. Digital control - Wikipedia

   en.wikipedia.org/wiki/Digital_control

   Digital control theory is the technique to design strategies in discrete time, (and/or) quantized amplitude (and/or) in (binary) coded form to be implemented in computer systems (microcontrollers, microprocessors) that will control the analog (continuous in time and amplitude) dynamics of analog systems.

6. Discrete-time Fourier transform - Wikipedia

   en.wikipedia.org/wiki/Discrete-time_Fourier...

   The term discrete-time refers to the fact that the transform operates on discrete data, often samples whose interval has units of time. From uniformly spaced samples it produces a function of frequency that is a periodic summation of the continuous Fourier transform of the original continuous function.

7. BIBO stability - Wikipedia

   en.wikipedia.org/wiki/BIBO_stability

   For a rational and continuous-time system, the condition for stability is that the region of convergence (ROC) of the Laplace transform includes the imaginary axis.When the system is causal, the ROC is the open region to the right of a vertical line whose abscissa is the real part of the "largest pole", or the pole that has the greatest real part of any pole in the system.

8. Discrete transform - Wikipedia

   en.wikipedia.org/wiki/Discrete_transform

   For example, the discrete-time Fourier transform and the Z-transform, from discrete time to continuous frequency, and the Fourier series, from continuous time to discrete frequency, are outside the class of discrete transforms. Classical signal processing deals with one-dimensional discrete transforms.

9. Circular convolution - Wikipedia

   en.wikipedia.org/wiki/Circular_convolution

   In particular, the DTFT of the product of two discrete sequences is the periodic convolution of the DTFTs of the individual sequences. And each DTFT is a periodic summation of a continuous Fourier transform function (see Discrete-time Fourier transform § Relation to Fourier Transform). Although DTFTs are usually continuous functions of ...