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白化滤波器
相关语句
  whitening filter
     Wavelet based whitening filter of fractal noise
     基于小波变换的分形噪声白化滤波器
短句来源
     Whitening filter based on generalized yuler-walker equation
     基于广义尤拉-沃克方程的白化滤波器
短句来源
     EFFECT OF WHITENING FILTER'S ORDER ON GLS ALGORITHM
     白化滤波器阶数对GLS算法辨识结果的影响
短句来源
     SPECKLE REDUCTION OF POLARIMETRIC SAR- POLARIMETRIC WHITENING FILTER
     极化SAR相干斑抑制——极化白化滤波器
短句来源
     PCI(Principal Component Inverse)technique is applied to whitening filter. Its whitening performance is analysed. Method how to determine the principal component and its relative problem are also analysed.
     将PCI(Principal Component Inverse,主成分求逆)运用于白化滤波器,并分析了其白化性能和主成分的确定方法及其相关的问题。
短句来源
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  whiten filter
     The hypothesis of evoked potential regarded as with stationarity in a short period is feasible by using "imitating-natural-reading" paradigm,and the spontaneous EEG can be removed by whiten filter.
     采用模拟自然阅读诱发模式使短时信号的平稳性得到了保障,利用白化滤波器去除自发脑电是可行的。
短句来源
     In virtue of the difference between short-time dynamic signal and windless background noises,we pretreated the mixed input signals by whitening them. Based on the theory of AR model,we educed the structure of the background noises′ whiten filter,by combining the wavelet transform and adaptive filtering,the noises were remove from the processed signals through adaptive filter.
     根据短时动态信号与平稳背景噪声的特征区别,对输入混合信号进行白化预处理,以时间序列的AR模型理论为依据,导出背景噪声白化滤波器的结构;
短句来源
  “白化滤波器”译为未确定词的双语例句
     Then, a matched filter and a threshold detector are used on the whitening signals to detect the QRS waves. The evaluation of this algorithm is performed by using the MIT arrhythmia ECG database. The results have been compared to those of three other algorithms, s and some improvement has been obtained in the detecting rate and running speed.
     提出了一种新的心电QRS波检测算法,该算法用心电信号的小波变换作为自适应白化滤波器的输入,然后对白化滤波后的输出进行匹配滤波和阈值检测来识别出QRS波.用MIT心电数据库对该算法进行了评估,并与其他几种算法的结果进行了比较,表明此算法在QRS检出率和计算速度上都有一定的改善.
短句来源
     Thus designing and implementing a whitened filter against 1/f noise are significant.
     因此针对l/f类分形噪声设计和实现一种白化滤波器在信号检测中具有重要意义。
短句来源
     According to the characteristic difference between short-time dynamic signal and stationary noise background,this paper presents a novel LMS adaptive algorithm to be whitened stationary noise background based on AR model theory of time series.
     根据短时动态信号与平稳背景噪声的特征区别 ,以时间序列的 AR模型理论为依据 ,导出背景噪声自适应白化滤波器的结构 ,并用变步长 LMS算法实现自适应滤波 .
短句来源
     Establishes the AR model to each section of reverberations data, calculates the AR model's the parameter using the Levinson algorithm, calculates the power spectrum of this section of reverberations data, thus structure pre- whited FIR numeral filter, to white the preceding section of reverberations data and transmitting signal white processing, namely estimated the kth section's power spectrum, then according to the kth section's power spectrum structure acts whited filter to whited processe to the k+1 section and the transmitting signal.
     对每段混响数据建立AR模型,利用Levinson算法计算AR模型的参数,计算该段混响数据的功率谱,从而构造预白化FIR数字滤波器,对前一段的混响数据和发射信号白化处理,即先估计第k段功率谱,再根据第k段功率谱构造白化滤波器对k+1段和发射信号进行白化处理。
短句来源
     In this paper, the basic relationship between OPT, PEF and SEF moving target indicator (MTI) whitening filters is introduced, and their performance of whitening and detection in non-Gaussian correlated clutter is studied.
     这里介绍了最佳(OPT)、预测误差(PEF)、平滑误差(SEF)动目标显示器(MTI)三种白化滤波器的基本关系,在非高斯相关杂波情况下,研究了它们在白化及检测方面的性能。
短句来源
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  whitening filter
The scheme also uses some other measures, such as synchronization and optimal whitening filter to resist other attacks and improve detection performance.
      
The transfer function of whitening filter is provided as well as the condition for whitening.
      
This technique couples very nicely with a new maximum likelihood sequence estimator for the data that uses a whitening filter followed by a Viterbi decoder.
      
We also examine the need for a whitening filter prior to the Viterbi equalizer and show that it only marginally improves the performance.
      
Two space-time architectures, cascade and joint-domain, are studied and compared to a Rake receiver preceded by a whitening filter.
      
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A generalized least square method with special whitening filter GLS (SF) is provided in this paper. The parameters of its whitening filter are a part of model parameters, and in consequence the computational method is simplified. The GLS(SF) is superior to the traditional GLS in estimation accuracy because it gets rid of the error due to incorrect choice of the order of the whitening filter. A lot of computational results show that the convergency of GLS(SF) is also better thean that of GLS, therefore GLS (SF)...

A generalized least square method with special whitening filter GLS (SF) is provided in this paper. The parameters of its whitening filter are a part of model parameters, and in consequence the computational method is simplified. The GLS(SF) is superior to the traditional GLS in estimation accuracy because it gets rid of the error due to incorrect choice of the order of the whitening filter. A lot of computational results show that the convergency of GLS(SF) is also better thean that of GLS, therefore GLS (SF) is a GLS method but with simpler algorithm, more accuracy and better convergency. It is proved that the square sum of errors between model output and observed output data is minimum for the system in which the input noise is small and the output measurement noise appximates to white noise. The mathematical model obtained by this method is better than that of the traditional GLS. An example of building up dynamic mathematical model in dynamic calibration is given. The numerical results show that this method is feasible and the modeling effect is quite well.

本文提出一种采用特殊白化滤波器的广义最小二乘法,简记为GLS(SF)。这种算法中不需要单独估计白化滤波器的阶次及参数,只需迭代估计模型参数,算法简单,准确度和收敛性也较好。对于输入噪声较小、输出端测量噪声近似白噪声的系统来说,文中证明,用此算法所得模型输出与系统输出观测值之误差平方和最小。文中给出几个实际动态校准中建立动态数学模型的例子。

The performnce function of an adaptive detector composed of an adaptive inverse spectrum (or whitening) filter and a matched filter is derived. Effects of AR parameter estimation errors on the detection performance is analysed. Computation results for the AR noise with order 1, 2, 3 and two typical signal forms (narrow-band and wide-band) indicate that the detection performance of this kind of adaptive detectors is not sensitive to the AR parameter estimation errors. In addition another advantage of this kind...

The performnce function of an adaptive detector composed of an adaptive inverse spectrum (or whitening) filter and a matched filter is derived. Effects of AR parameter estimation errors on the detection performance is analysed. Computation results for the AR noise with order 1, 2, 3 and two typical signal forms (narrow-band and wide-band) indicate that the detection performance of this kind of adaptive detectors is not sensitive to the AR parameter estimation errors. In addition another advantage of this kind of adaptive detectors, it is useful to the practice applications.

本文从理论上研究了采用自适应逆谱(或白化)滤波器级联匹配滤波器构成的自适应检测器的性能,着重分析了背景噪声AR参数估值误差对检测性能的影响。以两种典型的信号型式(宽带、窄带)为例的分析计算表明,这类检测器的检测性能对参数估值误差并不敏感。因而自适应逆谱(或白化)滤波器级联适当的匹配滤波器方案是一种有用的自适应检测器方案。

Theoretical analyses and results of simulation show that the reliablity and accuracy, of the structuer identification of MIMO systems can be very much impro- ved by incorporating a whitening filter on the basis of the previous residual error technique.

理论分析及仿真结果表明,在以往残差技术基础上引入了白化滤波器可大大改善辨识多输入多输出系统结构的可靠性及准确性.

 
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