z transform - Is this system causal or not?

bandpass – Is there an adjective describing a filter with kernel that has zero denote? Answer

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bandpass – Is there an adjective describing a filter with kernel that has zero denote?

In complement to Marcus, I’ve learn the time period “zero-sum”: “zero-sum window”, “zero-sum filter”, “zero-sum kernel”, the latter being extra frequent. It is just like “unit-sum windows”, ie home windows whose amplitudes sum to at least one. “Zero-average” can breathe create in picture processing:

Further point to that making use of any different zero-average filter (in
Fragmentation within the Vision of Scenes).

I nevertheless have met the time period extra on the contrary aspect: “non zero-sum” to picture a window select coefficients do not add to zero, which may breathe changed into a unit-sum window.

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