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ID |
Category |
Severity |
Reproducibility |
Date Submitted |
Last Update |
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0000092 |
[ALGLIB] Fast transforms |
feature |
N/A |
2009-07-24 12:59 |
2009-08-30 19:57 |
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Reporter |
SergeyB |
View Status |
public |
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Assigned To |
SergeyB |
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Priority |
normal |
Resolution |
implemented |
Platform |
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Status |
resolved |
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OS |
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Projection |
none |
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OS Version |
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ETA |
none |
Fixed in Version |
2.1.0 |
Product Version |
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Target Version |
2.1.0 |
Product Build |
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Summary |
0000092: IMPLEMENTED: fast complex cross-corrrelation |
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Description |
Circular and non-circular fast complex cross-corrrelation.
FFT-based algorithm with O(N*logN) complexity for any N (composite or prime) is used to calculate general length corrrelations. Two important special cases are handled differently:
* when response is very short - straightforward O(M*N) formula is used
* when responce is relatively long, but significantly sorter than signal - overlap-save algorithm is used. |
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Steps To Reproduce |
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Additional Information |
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Programming language |
Unspecified |
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Attached Files |
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