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 Wysłany: Czw 22:28, 09 Gru 2010 Temat postu: ugg boots günstig Colored measurement noise Sinus |
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Colored measurement noise Sinusoidal Parameter Estimation of the cross-spectral methods Levinson
Projection method, which is the traditional cross-spectral estimation is a major improvement. Simulation results show that even in the colored noise and low SNR case, the method still has a very high spectral resolution and spectral stability. Because cross-correlation function of the Yule-Walker equation and the autocorrelation function of the Yule-Walker equation has the form similar to the first 1G No. 3 stone to weapons such as: colored background noise, sine Island View letter reference the estimated spectrum Levln ~ on tile Methods 175 type,[link widoczny dla zalogowanych], the r is not difficult to push,[link widoczny dla zalogowanych], see, many based on the autocorrelation function of the Yule ~ Walker equation, since the good performance of spectral estimation methods,[link widoczny dla zalogowanych], such as maximum likelihood method, Mueic method, SVDt out methods and so is not difficult to transplant to the cross spectrum in the past. References DaiYisong. PerformanceAnalvsisofCr0ss-SpectralDensityEstimatorandItsApplication. Int, Electronics, 1991; 71 (1): 45 ~ 53. LeeYeta1. ACross-PowerSpectralMethodforImproredMeasurementofFilmNoisePowerSpectra. SPIE, 1987; 767 (pt1MedicalImaging): 250 ~ 258. OIIOTeta1. DetectionofFrequenciesandPowerSpectraofaPeriodicSignalBurled; nN, ~ isebyaCr0ss-spectrumMethod. , DcoUStSoc, npan, 1988; 4l (2): 91 ~ 9:. Daiyi Song,[link widoczny dla zalogowanych], Shi Yao-wu. The most nV sine voltage level measured cross power spectrum method. China Electrotechnical Society, 1992; 2:: 8 ~ 7. CadzowJAeta1. SingularValueDcomposietionApproachtOTimeSeriesModelling. IEEProc,[link widoczny dla zalogowanych], 1983 ~ 130 ( : 202 ~ 2le-. Junqin. Random signal processing. Beijing: Beijing Aerospace University Press, 1999:21 ~ 287. SchmidtRO. MultipleEmitterLocationandSignalParameterEstimation. RDCSpectrmEstimationorksho Port Record. 1979:243 ~ S8. EstimationofParametersofSinusoidalSignalUnderColoredNoiseBackgroundbyCross-spectralLevinsonMethodShiYaowu, DaiYisong, XieXiaohua, GongWenhin (1ilinUniversityofTechnology, Changchun13002'3) Abstraet - TheYule-Walkerequationbasedoncross-correlationisproposedtheoretically, andtheLevinsonalgorithmisdeveloped. ThealgorithmcanefficientlyovercometheshortcomingsoftheclassicalFFTandcr0ss-peri0d0grammethodsforcross-spectralestimation. Finally, themethodpresentedinthispaperiscomparedwiththewell-knownCadzowSSVDmethodbyanumericalexample. KeyWords: Colorednoise ~ Cross-spectralestimation ~ Weaksinusoidalsifnal1234567
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