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Process / pipelineJoint time-frequency analysis

Uchanganuzi wa Mgeuko wa Msalaba (Cross-Wavelet Transform)

Uchanganuzi wa mgeuko wa msalaba (XWT) ni upanuzi wa vipimo viwili wa uchanganuzi wa mgeuko wa msalaba unaoendelea (continuous wavelet transform) ambao hupima uwakilishi wa pamoja wa muda na mzunguko (frequency) wa mawimbi mawili. Ulianzishwa na Torrence na Compo (1998) na kutumiwa sana na Grinsted, Moore, na Jevrejeva (2004) kwa data za kijiografia, XWT huonyesha mahali ambapo mawimbi mawili hushiriki nguvu ya pamoja ya mspektrali na uhusiano wa awamu (phase) kati yao katika kila nukta ya muda na mzunguko. Hii ni dhana ya kawaida ya uchambuzi wa mspektrali wa msalaba wa kawaida kwa dhana inayobadilika kwa muda.

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Uchanganuzi wa Mgeuko wa Msalaba (Cross-Wavelet Transform)
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Vyanzo

  1. Torrence, C., & Compo, G. P. (1998). A practical guide to wavelet analysis. Bulletin of the American Meteorological Society, 79(1), 61–78. DOI: 10.1175/1520-0477(1998)079<0061:APGTWA>2.0.CO;2
  2. Torrence, C., & Webster, P. J. (1999). Interdecadal changes in the ENSO–monsoon system. Journal of Climate, 12(8), 2679–2690. DOI: 10.1175/1520-0442(1999)012<2679:icitem>2.0.co;2
  3. Grinsted, A., Moore, J. C., & Jevrejeva, S. (2004). Application of the cross wavelet transform and wavelet coherence to geophysical time series. Nonlinear Processes in Geophysics, 11(5–6), 561–566. DOI: 10.5194/npg-11-561-2004

Jinsi ya kunukuu ukurasa huu

ScholarGate. (2026, June 3). Cross-Wavelet Transform. ScholarGate. https://scholargate.app/sw/time-series/cross-wavelet-transform

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Imerejelewa na

ScholarGateCross-Wavelet Transform (Cross-Wavelet Transform). Imepatikana 2026-06-15 kutoka https://scholargate.app/sw/time-series/cross-wavelet-transform · Seti ya data: https://doi.org/10.5281/zenodo.20539026