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overlapped signal
相关语句
  重叠信号
     (2) Based on the Weierstrass theory and PSP (Per-Survivor Processing), a model fitting based methods, which can separate the overlapped signal components of the multicomponent signal, is proposed.
     (2) 基于Weierstrass理论和PSP(Per-Survivor Processing)方法,提出了一种基于模型拟合的多分量信号的重叠信号分量分离方法。
短句来源
     This dissertation focuses on the separation of overlapped signal components of the multicomponent signal which has various and important applications in the fields of communications, radar, sonar, speech, biomedical engineering and so on.
     本文研究了在通信、雷达、声纳、语音、生物医药工程等领域中有着广泛及重要应用的多分量信号的多个重叠信号分量的分离技术。
短句来源
     (3) A new method to separate the overlapped signal components of the multicomponent signal is proposed, which uses the short time and sinusoidal assumptions of the signal component, and extends the application of energy operator to the multi-signal components.
     (4) 通过对非平稳多分量信号建立时变AR(AutoRegressive)模型,利用时变功率谱进行信号分量的瞬时频率、幅度估计这一思路,讨论了一种基于时变AR模型的多分量信号的重叠信号分量分离方法。
短句来源
  “overlapped signal”译为未确定词的双语例句
     Simulation results show that the method can achieve less than 7.5% separation mean absolute error for three overlapped signal components when SNR is above 25dB.
     仿真结果表明该方法在信噪比大于25dB时,对重叠的3个信号分量分离误差小于7.5%。
短句来源
     Fractional Derivative Combined Fourier Least Square Fitting to Process Noised Overlapped Signal
     分数导数结合傅里叶最小二乘拟合处理含噪音的重迭信号
短句来源
     Chemical overlapped signal may be separated in Blind Signal Separation (BSS).
     盲信号分离算法可以实现重叠化学信号分离。
短句来源
  相似匹配句对
     Distinction of Two Overlapped Target signal in DBF
     数字波束形成中密集目标分辨研究
短句来源
     Separating chromatograph overlapped peaks in blind signal separation
     盲信号分离算法处理色谱重叠峰
短句来源
     transmission of signal;
     信号的传递 ;
短句来源
     Signal Waveforms
     信号波形
短句来源
     Overlapped Value and Uniqueness
     重值与唯一性
短句来源
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  overlapped signal
If the suitable optimal wavelet basis and frequency scale value are selected, the useful information can be extracted from noised overlapped signal.
      


~1H, ~(13)C and ~(31)P NMR spectra of eight phosphoramidothioate pesticides and(CH_3)_2CH; Z=H, CH_3CO)have been studied by using chiral lanthanide shift reagents(CLSR): Eu(hfc)_3, Eu(tfc)_3 and Pr(hfc)_3·It has been shown that in the presence of CLSR, the enantiomeric ratio of the phosphoramidothioates can be determined by ~1HNM R spectroscopy only if the spectra patterns of the enantiotopic nuclei are simple. When there is branch group attached to phosphorus, the diastereotopic protons show overlapping...

~1H, ~(13)C and ~(31)P NMR spectra of eight phosphoramidothioate pesticides and(CH_3)_2CH; Z=H, CH_3CO)have been studied by using chiral lanthanide shift reagents(CLSR): Eu(hfc)_3, Eu(tfc)_3 and Pr(hfc)_3·It has been shown that in the presence of CLSR, the enantiomeric ratio of the phosphoramidothioates can be determined by ~1HNM R spectroscopy only if the spectra patterns of the enantiotopic nuclei are simple. When there is branch group attached to phosphorus, the diastereotopic protons show overlapping signals and accurate measurement of the integrated intensities is not possible. However, the enantiomers show different ~(31)P NMR shifts after adding CLSR, which can be used for determining enantiomeric ratio in compounds containing chiral phosphorus. The complexation models of phosphoramidothioates with CLSR have been discussed.

本工作利用手性位移试剂Eu(hfc)Eu(tfc)_3和Pr(hfc)_3对通式为剂进行了~1H、~(13)C和~(31)P NMR研究,观察了对映异构体在手性条件下在NMR谱图上的反映。结果表明,在手性位移试剂作用下,用~1H NMR谱仅能测定结构简单例如R为CH_3的化合物的光学纯度,但采用~(31)P{~1H}技术则可方便有效地测定结构复杂的该类化合物的光学纯度。本工作还对硫酮式和硫醇式两类硫代磷酰胺酯与手性位移试剂的络合模型作了初步讨论。

This paper studies the application of Kalman filter in resolving fluorescence spectra,to do multicomponent analysis of overlapped peaks.The influence of peak height,peak position and noise are investigated using synthetic data.When S/N=50,the overlapped peaks only 3nm apart can be resolved.The experimental results for resolving overlapped signals of 1 ppm phenol/1,3 hydroxybenzene system are satisfactory.After several operations,the estimated concentration values tend to be constant.Their measurement...

This paper studies the application of Kalman filter in resolving fluorescence spectra,to do multicomponent analysis of overlapped peaks.The influence of peak height,peak position and noise are investigated using synthetic data.When S/N=50,the overlapped peaks only 3nm apart can be resolved.The experimental results for resolving overlapped signals of 1 ppm phenol/1,3 hydroxybenzene system are satisfactory.After several operations,the estimated concentration values tend to be constant.Their measurement error is less than 10%.

本文研究用卡尔曼滤波技术分辨重叠荧光光谱,作谱峰相近的多组份分析。采用合成数据测定了峰高、峰位置及噪声对结果的影响。S/N=50时,可分辨仅相隔3nm的重叠峰。用1ppm苯酚与间苯二酚混合液进行试验,对两者的荧光光谱重叠信号处理结果甚好,经一定次数运算后,浓度估计值趋于定值,两者测定误差小于10%。

Effects of some factors on the performance of our Kalman filter in discrimination of closely spaced overlapping signals were investigated. The resolution power of the filter for overlapping lines can be strengthened by reduction of the step size in scans. The minimum peak separation of two lines which the Kalman filter can effectively handle generally equals two to three times the step size in scans. Significant difference between the profiles of the analysis and interfering lines and multiple lines...

Effects of some factors on the performance of our Kalman filter in discrimination of closely spaced overlapping signals were investigated. The resolution power of the filter for overlapping lines can be strengthened by reduction of the step size in scans. The minimum peak separation of two lines which the Kalman filter can effectively handle generally equals two to three times the step size in scans. Significant difference between the profiles of the analysis and interfering lines and multiple lines from matrix in the spectral window of the analysis line are very helpful for the Kalman tilter to discern closely spaced analysis and interfering signals correctly, which allow the filter well to resolve the line pair with very small peak distance or even the entirely coinoident lines.

针对ICP-AES中严重重叠谱线干扰的校正,研究了若干因素对Kalman滤波器性能的影响.减小扫描步长可以增强Kalman滤波法解析重叠谱线的能力.当重叠线对轮廓基本相同且扫描窗口内干扰元素只有一条谱线时,Kalman滤波法能分辨的重叠线对的最小峰间距为扫描步长的2~3倍.扫描窗口内较多的干扰元素谱线和重叠线对轮廓的显著差异有利于Kalman滤波器正确识别分析信号和干扰信号,可以利用这两个因素有效地分辨峰间距很小甚至完全重叠的谱线.

 
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