查询词典 spectral

Theory analysis and experimental result indicate that the higher order spectral analysis can deal effectively with nonstationary and non-Gaussian problems in the actual signal.

理论分析及实验结果表明，高阶谱分析能有效处理实际信号中的非平稳非高斯问题。

With these molecular parameters, we provide a mid-infrared frequencystandard with deviations as small as 〓 in order from NIST spectral data.

由确定的分子参数我们还制定了中红外频率标准，与NIST光谱数据的偏差值在〓量级。

In advanced time-division multiple-access mobile communication systems, reduced-state equalization algorithms have to be employed because high-level modulation is used in order to improve spectral efficiency.

在先进的时分多址接入移动通信系统中，需要一个减少状态均衡算法来提高高阶调制方式下频谱的有效性。但是这种均衡算法只有在具有最小相位的离散时间系统中才能获得高性能。

Order spectral technique. Non-Gaussian AR model was employed for the analysis and classification for PCG signals.

本文利用高阶谱分析方法，提出以非高斯参数模型对心音信号进行双谱分析与分类。

Secondly,taking those into account,characteristic bands for paddy rice extraction were proposed and merged into SPOT-5 images in order to increase spectral information and improve the separability.

结果表明，该方法的总体提取效果较好，其提取精度与通常的监督分类方法相比有了较大的提高，只是在水稻和玉米交界处有误判现象。

By analyzing the theory of higher order cummulants and higher order spectrum ,the methods of machine fault feature extraction are researched based on higher order spectral analysis by using the character that higher order spectrum can restrain the gauss noise.

在分析高阶累积量与高阶谱的理论基础上，利用高阶谱可以抑制加性高斯噪声的性质，研究了基于高阶谱分析的机械故障特征提取方法，提出了基于双谱估计的齿轮故障诊断的方法。

With the structure of FNN turning more complex, the good approach or classification is hard to get because of redundancies and uncertainties caused by both large volume uncertain data and lack of prior knowledge. Based on high order spectral reduction for rulers, a new structure changed Fuzzy Neural Network is proposed.

针对先验知识不完备和不确定的情况下海量数据造成的冗余和互斥，模糊神经网络结构变得复杂化并不能很快逼近和分类输出对象的情况，提出了一种基于高阶谱完成规则约简的变结构模糊神经网络的模型。

The application of high order spectral analysis is related to computations of high order moment functions and multi-dimensional Fourier transforms. The errors appear in these computations and limitation of measured data may cause the failure of such comparison.

高阶谱分析方法的应用中要涉及到高阶谱矩、高阶相关函数及高维傅立叶变换的计算，这些计算所带来的近似及试验记录的局限性很可能是导致两种方法比较时不成功的原因。

With these molecular parameters, we provide a mid-infrared frequency standard with deviations as small as 10~(-5)- 10~(-4)cm~(-1) in order from NIST spectral data.

我们利用双差分速度调制激光光谱技术，首次获得了CS~+A~2∏(v=1)-X~2∑~+(v=0)高分辨电子吸收光谱。

In this dissertation, we analyzed the residual images of MSI, stored the residual images as 1-D data in spectral direction in order to enhance the correlation between neighbor data, and coded them by context-based arithmetic coding.

本文通过分析多光谱图象的残差图象的特点，将其残差图象按谱维方向重新排列成一维数据，增强相邻数据之间的相关性，建立上下文模型，再进行算术编码。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。