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Sample (signal) - Definition and Overview |
| Related Words: Cobol, Edp, Fortran, Teletype, Alarm, Alert, Announce, Assembler, Badge, Balefire, Banner, Beacon |
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A sample refers to a value or set of values at a point in time and/or space.
The defining point of a sample is that it is a chosen value out of a continuous signal.
The sample need not be discrete or digital (a common misunderstanding).
A theoretical sampler multiplies a continuous signal with a Dirac comb.
This multiplication "picks out" values but the result is still a continuous function; just zero at non-sampling locations.
If this signal is then discretized (i.e., converted into a sequence) and quantized along all dimensions it becomes a discrete signal.
See also
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Example Usage of (signal) |
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_DanWest: @TVCatchup love your site. super handy for both pc and iphone. I don't have good free view signal so your site is perfect! |
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beckyenoch: is finally back in a phone / Internet signal area, after all weekend of 'no service'. O2 need better coverage of Scottish Borders! |
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bradgoat: PS3 media streaming breaks on wifi with low signal strength(<100%).I think wifi's broken on PS3 or streaming doesn't handle packet loss.#ps3 |
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