All Topics  
Pulse (signal processing)

 

 
   Email Print
   Bookmark   Link
 

 

Pulse (signal processing)
 
 
  Topics Pulse (signal processing) Topic Home

In signal processing
Signal processing

Signal processing is the analysis, interpretation, and manipulation of signal . Signals of interest include: audio signal processing, , time-varying measurement values and sensor data, for example biological data such as electrocardiograms, control system signals, telecommunication transmission signals such as radio signals, and many others....
, the term pulse has the following meanings:
  1. A rapid, transient change in the amplitude of a signal from a baseline value to a higher or lower value, followed by a rapid return to the baseline value.
  2. A rapid change in some characteristic of a signal, e.g., phase
    Phase (waves)

    The phase of an oscillation or wave is the fraction of a complete cycle corresponding to an offset in the displacement from a specified reference point at time t = 0....
     or frequency
    Frequency

    Frequency is the number of occurrences of a repeating event per unit time. It is also referred to as temporal frequency.The period is the duration of one cycle in a repeating event, so the period is the reciprocal of the frequency....
    , from a baseline value to a higher or lower value, followed by a rapid return to the baseline value.


e shapes can arise out of a process called pulse-shaping
Pulse shaping

In digital telecommunication, pulse shaping is the process of changing the waveform of transmitted pulses. Its purpose is to make the transmitted signal suit better to the communication channel by limiting the effective Bandwidth of the transmission....
.






Discussion
Ask a question about 'Pulse (signal processing)'
Start a new discussion about 'Pulse (signal processing)'
Answer questions from other users
Full Discussion Forum



Encyclopedia


In signal processing
Signal processing

Signal processing is the analysis, interpretation, and manipulation of signal . Signals of interest include: audio signal processing, , time-varying measurement values and sensor data, for example biological data such as electrocardiograms, control system signals, telecommunication transmission signals such as radio signals, and many others....
, the term pulse has the following meanings:
  1. A rapid, transient change in the amplitude of a signal from a baseline value to a higher or lower value, followed by a rapid return to the baseline value.
  2. A rapid change in some characteristic of a signal, e.g., phase
    Phase (waves)

    The phase of an oscillation or wave is the fraction of a complete cycle corresponding to an offset in the displacement from a specified reference point at time t = 0....
     or frequency
    Frequency

    Frequency is the number of occurrences of a repeating event per unit time. It is also referred to as temporal frequency.The period is the duration of one cycle in a repeating event, so the period is the reciprocal of the frequency....
    , from a baseline value to a higher or lower value, followed by a rapid return to the baseline value.


Pulse shapes

Pulse shapes can arise out of a process called pulse-shaping
Pulse shaping

In digital telecommunication, pulse shaping is the process of changing the waveform of transmitted pulses. Its purpose is to make the transmitted signal suit better to the communication channel by limiting the effective Bandwidth of the transmission....
. Optimum pulse shape depends on the application.

Rectangular pulse

These can be found in pulse wave
Pulse wave

A pulse wave or pulse train is a kind of non-sinusoidal waveform that is similar to a square wave, but does not have the symmetrical shape associated with a perfect square wave....
s, square wave
Square wave

A square wave is a kind of non-sinusoidal waveform, most typically encountered in electronics and signal processing. An ideal square wave alternates regularly and instantaneously between two levels....
s, boxcar function
Boxcar function

In mathematics, a boxcar function is any function which is zero over the entirereal line except for a single interval where it is equal to a constant, A....
s, and rectangular function
Rectangular function

The rectangular function is defined as:'Alternate definitions of the function define to be 0, 1, or undefined. We can also express the rectangular function in terms of the Heaviside step function, :'...
s. In digital signals the up and down transitions between high and low levels are called the rising edge and the falling edge. In digital systems the detection of these sides or action taken in response is termed edge-triggered, rising or falling depending on which side of rectangular pulse. A digital timing diagram
Digital Timing Diagram

A Digital timing diagram is a representation of a set of signals in the time domain. A timing diagram can contain many rows, usually one of them being the clock....
 is an example of a well-ordered collection of rectangular pulses.

Nyquist pulse


Gaussian pulse


Sinc pulse