System & Filter: Difference & Relation

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In signal processing, a system can be a filter, and filters serve various purposes in digital signal processing (DSP). Filters are represented by a system function in the z-transform, highlighting their mathematical relationship. While some filters function as anti-aliasing tools, others may act as differentiators or integrators. The distinction lies in the specific applications and types of processing they perform. Understanding this relationship clarifies their roles in DSP.
timlee
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Hi,
In the context of signal processing, I am curious about what's the relation and difference between system and filter? Are they the same?

Thanks and regards!
 
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Yes Dear, a system in DSP can be a filter, and a filter can be use for different types of processing of signal in digital domain. A filter is always represented by a system function in z-transform. Some filters can be just anti-aliasing, while some can be differentiators or integrators. I think it is clear now.
 

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