0000093: IMPLEMENTED: fast real cross-corrrelation - Mantis

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ID

Category

Severity

Reproducibility

Date Submitted

Last Update

0000093

[ALGLIB] Fast transforms

feature

N/A

2009-07-24 13:00

2009-08-30 19:57

Reporter

SergeyB

View Status

public

Assigned To

SergeyB

Priority

normal

Resolution

implemented

Status

resolved

Product Version

Summary

0000093: IMPLEMENTED: fast real cross-corrrelation

Description

Circular and non-circular fast real 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.

Additional Information

Programming language

Unspecified

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Issue History
Date Modified	Username	Field	Change
2009-07-24 13:00	SergeyB	New Issue
2009-07-24 13:00	SergeyB	Status	new => assigned
2009-07-24 13:00	SergeyB	Assigned To	=> SergeyB
2009-07-24 13:00	SergeyB	Programming language	=> Unspecified
2009-07-24 13:00	SergeyB	Issue generated from	0000091
2009-07-28 09:51	SergeyB	Status	assigned => resolved
2009-07-28 09:51	SergeyB	Fixed in Version	=> [NOT RELEASED YET] Next major release
2009-07-28 09:51	SergeyB	Resolution	open => implemented
2009-07-28 09:51	SergeyB	Summary	Fast real corrrelation => IMPLEMENTED: fast real corrrelation
2009-08-30 19:57	SergeyB	Summary	IMPLEMENTED: fast real corrrelation => IMPLEMENTED: fast real cross-corrrelation
2009-08-30 19:57	SergeyB	Description Updated

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