Matches in DBpedia 2014 for { <http://dbpedia.org/resource/Nonlinear_filter> ?p ?o. }
Showing items 1 to 24 of
24
with 100 items per page.
- Nonlinear_filter abstract "In signal processing, a nonlinear (or non-linear) filter is a filter whose output is not a linear function of its input. That is, if the filter outputs signals R and S for two input signals r and s separately, but does not always output αR + βS when the input is a linear combination αr + βs.Both continuous-domain and discrete-domain filters may be nonlinear. A simple example of the former would be an electrical device whose output voltage R(t) at any moment is the square of the input voltage r(t); or which is the input clipped to a fixed range [a,b], namely R(t) = max(a, min(b, r(t))). An important example of the latter is the running-median filter, such that every output sample Ri is the median of the last three input samples ri, ri−1, ri−2. Like linear filters, nonlinear filters may be shift invariant or not.Non-linear filters have many applications, especially in the removal of certain types of noise that are not additive. For example, the median filter is widely used to remove spike noise — that affects only a small percentage of the samples, possibly by very large amounts. Indeed all radio receivers use non-linear filters to convert kilo- to gigahertz signals to the audio frequency range; and all digital signal processing depends on non-linear filters (analog-to-digital converters) to transform analog signals to binary numbers.However, nonlinear filters are considerably harder to use and design than linear ones, because the most powerful mathematical tools of signal analysis (such as the impulse response and the frequency response) cannot be used on them. Thus, for example, linear filters are often used to remove noise and distortion that was created by nonlinear processes, simply because the proper non-linear filter would be too hard to design and construct.".
- Nonlinear_filter wikiPageExternalLink NONLINEAR.htm.
- Nonlinear_filter wikiPageID "1866778".
- Nonlinear_filter wikiPageRevisionID "596542355".
- Nonlinear_filter hasPhotoCollection Nonlinear_filter.
- Nonlinear_filter subject Category:Filter_theory.
- Nonlinear_filter subject Category:Nonlinear_filters.
- Nonlinear_filter type Artifact100021939.
- Nonlinear_filter type Device103183080.
- Nonlinear_filter type Filter103339643.
- Nonlinear_filter type Instrumentality103575240.
- Nonlinear_filter type NonlinearFilters.
- Nonlinear_filter type Object100002684.
- Nonlinear_filter type PhysicalEntity100001930.
- Nonlinear_filter type Whole100003553.
- Nonlinear_filter comment "In signal processing, a nonlinear (or non-linear) filter is a filter whose output is not a linear function of its input. That is, if the filter outputs signals R and S for two input signals r and s separately, but does not always output αR + βS when the input is a linear combination αr + βs.Both continuous-domain and discrete-domain filters may be nonlinear.".
- Nonlinear_filter label "Nonlinear filter".
- Nonlinear_filter label "Нелинейный фильтр".
- Nonlinear_filter sameAs m.06293q.
- Nonlinear_filter sameAs Q4316763.
- Nonlinear_filter sameAs Q4316763.
- Nonlinear_filter sameAs Nonlinear_filter.
- Nonlinear_filter wasDerivedFrom Nonlinear_filter?oldid=596542355.
- Nonlinear_filter isPrimaryTopicOf Nonlinear_filter.