An empirical filter has been developed that uses the phase of the ASAR cross spectrum to detect slicks in the ENVISAT ASAR wave mode product. The filter has been tested on a partition of a set of simulated ASAR cross spectra distributed by ESA. Results show that variations of the cross-...
1) cross-power spectrum phase 互谱相位 2) cross-power spectrum 互谱 1. The grosser the bone fracture,the lower the peak frequency ofcross-power spectrum. 离体模拟和在体实测结果表明 :骨折后 ,胫骨在两测点振动的加速度互谱主频减小 ,骨折愈严重 ,加速度互谱主频越低。
We investigated the relationship between synchronized muscle activity and tremor time series in (enhanced) physiological tremor by cross-spectral analysis. Special attention was directed to the phase spectrum and its potential to clarify the contribution of reflex mechanisms to physiological tremor. The ph...
At 100 Hz and 200 Hz, the phase lags estimated from the cross spectrum are close to the true values. Get [Pxy,F] = cpsd(x,y,hamming(100),80,100,Fs); Pxy(Cxy < 0.2) = 0; plot(F,angle(Pxy)/pi) title("Cross Spectrum Phase") xlabel("Frequency (Hz)") ylabel("Lag (\...
The phase used is the phase of the cross spectrum of the observations filtered through their minimumphase equivalent filters. We provide an analytical study of the propagation of noise effects in the phase estimate. Comparisons with existing methods indicate that the proposed one is robust to noise...
色散平坦渐减光纤交叉相位调制The effect of cross phase modulation (XPM) on pulse propagation and supercontinuum (SC) spectrum generation in a dispersion flattened and decreasing fiber is researched. The results indicated that XPM could enhance the SC spectrum generation and increase the generation ...
General formulas for the cross spectrum, the cross-phase spectrum, and the time-delay spectrum for QPO shot models are calculated and discussed. It is shown that the CCFs, cross spectra, and power spectra observed for Cyg X-e2 imply that the spectrum of the shots evolves with time, with ...
were not included. All participants with GD received cross-sex hormone treatment after the first scan, and none of them had affirmative surgery. We also excluded persons who had either diagnosed autism spectrum disorder (ASD) (before being referred to the team) or had shown clinical signs of ...
Photofragmentation of cluster ions: the visible photoabsorption spectrum of Ar2N{2/+} The absolute cross section for photodissociation of Ar 2 N 2 + was measured as a function of wavelength in the 470–550 nm range. A structureless broad... T Nagata,T Kondow - 《Zeitschrift Für Physik ...
Due to XPM, the probe is phase modulated along the fiber by the intensity modulation created by the pumps. The OSA at the fiber output simultaneously measures the spectra of both the pump and the probe. Figure 4.8.20 shows an example of the measured optical spectrum where the pump and the...