نتایج جستجو برای: least square spectral analysis lssa
تعداد نتایج: 3289279 فیلتر نتایج به سال:
More than 30 million of high-energy muons collected with the MACRO detector at the underground Gran Sasso Laboratory have been used to search for flux variations of different natures. Two kinds of studies were carried out: search for periodic variations and for the occurrence of clusters of events. Different analysis methods, including Lomb-Scargle spectral analysis and Scan Test statistics hav...
In most existing distributed estimation algorithms, many scholars adopted the assumption that output signal of system is noisy and input sufficiently accurate. However, in real applications, filter vector usually contains noise. such situations, it has been proved adaptive filtering algorithm using total least squares (TLS) method shown better performance than classical (LS) method. So this pap...
Effects of the moisture content (MC) of tea on diffuse reflectance spectroscopy were investigated by integrated wavelet transform and multivariate analysis. A total of 738 representative samples, including fresh tea leaves, manufactured tea and partially processed tea were collected for spectral measurement in the 325-1,075 nm range with a field portable spectroradiometer. Then wavelet transfor...
The theory of spectral analysis of a particular class of non-commutative groups|wreath products of cyclic groups| has been shown to have a group-based convolution that leads to a new class of noncommutative lters. These lters, with their group and scale-selective properties and their relationship to DFT lter banks, ooer some intriguing possibilities in signal processing applications. In this pa...
Two filter based approaches for deghosting of Ocean Bottom Cable data are presented. One of them is phase shifting of geophone followed by least square matching of cross ghosted geophone and hydrophone data.In the second approach,phase shifting of geophone is followed by direct matching of geophone’s amplitude spectrum with that of the hydrophone within the seismic bandwidth.Results obtained fr...
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