查询词典 on the double

On the basis of direct modelling method by using extended Kalman filter, a new method combining extended Kalman filter with adaptive extended Kalman filter is presented to model gyro drift directly from rotate angle of turntable. Extended Kalman filter has great estimation error, what is more, may be divergent if the model and noise statistic are not accurate or wrong. The new method solves the problem of general extended Kalman filter by using fictious noise with timevarying statistic to compensate the linearized model error of extended Kalman filter. The parameter estimators of single-axis and double-axis servo test are designed from it.

本文深入研究了根据伺服试验数据进行陀螺仪漂移误差模型建模的方法，在应用广义Kalman滤波器直接建模的方法基础上，针对广义Kalman滤波器对于不精确或错误的模型和噪声统计，估计误差较大，甚至滤波发散的缺陷，借助于用带时变噪声统计的虚拟噪声补偿广义Kalman滤波的线性化模型误差的新思想，提出了用广义Kalman滤波和自适应广义Kalman滤波算法相结合的方法由转台的转角数据直接建模陀螺仪漂移误差模型，并设计了陀螺仪单轴伺服和双轴伺服测试时参数估计的滤波器。

In the influencing factors of yarn, the yarn of less diameter have lessfiloplume, as adding twist, the filoplume lessen, on the other hand, adding twist increases the tightness of fabric, make the filoplume of fabric moving back harder, aggravate theprickle to skin. The relationship between the prickle and twist is double curve.

竹原纤维纱线的捻度与刺痒感成双曲线关系，一方面纱线表面毛羽量随捻度的增加呈减少趋势，刺痒感下降；另一方面，捻度增加，纱线紧度加大，纱线表面毛羽受外力后避让困难，对皮肤的作用力加大，加重刺扎感。

Purple flannelette blanket raised the visual sex of hall chroma, double lubricious Gou Bian looks more show elegance sedate, with the Rou Nuanguang on the ceiling annulus is opposite each other mirror.

紫色绒布毯提高了大厅彩度的视觉性，双色勾边看来更显典雅稳重，和天花板上的柔暖光环相互对映。

Della double the fob chain in her hand and sat on the corner of the table near the door that he always entered.

德拉手里握着对折的表链，坐在门口节目进来时必经的桌角上。

Based on the Betti-Rayleigh dynamic reciprocal theorem, the reciprocal property of the Green function is demonstrated; and the analytical solution of soil vibration subjected to moving loads is deduced. By means of double Fourier integral transform, the problem is firstly transformed into wave number-frequency domain, which makes it very convenient to derive the solution and furthermore to analyze the frequency characteristics of soil vibration.

基于Betti-Rayleigh动力互易定理，论证了地基土Green函数的互易性，推导了移动荷载引起的地基土振动解析解，进而推证出移动常力荷载和移动简谐荷载作用下地基于表面振动在波数－频率域内和空间－时间域内的解析表达式，并采用Matlab对其进行数值计算。

In order to overcome the difficulty of making a through investigation of each fracture in natural systems, a new concept of quasi double-porosity-medium was put forword and a new mcdel was also developed based on the partition of dominant fractured networks and quasi porous matrixes according to the transmissive and storage mechanism of frae tured medium.

双重介质水流耦合离散模型的建立，改变了以往对双重介质的概化和假设，能如实的反映裂隙系统和孔隙岩块的组合关系，不仅能描述裂隙系统的导水作用和孔隙岩块的贮水作用，还能描述孔隙岩块的渗透特征。对两类空隙系统间的水交替特点有了新的认识，并对以往的结论提出异议。

Methods On the symmetrical plane of the double-Gauss lens with 1:1 magnification,the Fraunhofer diffraction of the object surface could be formed.

方法在双高斯1：1制版镜头的对称面上形成物面的夫朗和费衍射，并使物面与茶形散斑屏重合，使得各物点均以狭缝状的光束通过透镜组在记录介质面成像。

For calculation of the double integration on the boundary, the analytical formula of the first integral is deduced in detail with linear basic function, and a Gauss integration formula is used in the second integral.

以上算法利用Fortran 90 程序语言编制了计算程序。

Base on the fact that a hard-edge aperture function can be expanded into a finite sum of complex Gaussian functions, the approximate analytical expressions for the propagation characters of Hermite-Guassian beams passing through double rectangular apertured are derived. The approximate analysis uses Collins formula. At last, Matlab illustrates some numerical examples.

基于硬边孔函数能拓展成一组有限复高斯函数的和，研究厄米－高斯光束通过双矩孔的传输特性，用Collins公式分析，用Matlab进行一些数值模拟。

In accordance with the generating principle of line echo and after analyzing main echo cancellation algorithms, and after in-depth study on the core algorithms of all the module of adaptive echo canceller, in particular, adaptive filtering algorithm and double talk detection algorithm, considering with complexities and capabilities of all the candidates, this paper chooses NLMS algorithm to implement echo canceller.

首先，对回波产生原理和目前几种常用回波消除算法进行了分析，在研究自适应回波消除器的各个模块，特别是深入分析各种自适应滤波算法和双讲检测算法，综合考虑各种算法的运算复杂度和性能的情况下，这里采用NLMS算法实现白适应回波消除器。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。