查询词典 error

This paper is concerned with two problems: First, a formula is derived to estimate the error of system identification from the autoeorrelative function of stationary random disturbances and that of pseudo-random sequences. It can be used to select the type of pseudo-random sequences to be used for quick identification with a given error.

本文讨论了两个问题：(1)导出了平稳随机干扰的自相关函数、伪随机序列的自相关函数和系统脉冲响应辨识误差之间的定量关系式，可用来选择伪随机序列和估计试验误差。

Secondly, when kalman filter has reached steady state its error covariance will have a very small stationary value, namely filter dropping off'. Thirdly, the traditional kalman filter cannot adjust its filter parameters with statistic characteristic of the noise. To overcome the deficiency of kalman filter, an SVD-based adaptive kalman filter is put forward in the paper. The filter restrains the filter divergence by matrix singular value decomposition. The eigenvalues and eigenvectors of the matrix are insensitive to tiny change of matrix element and acceptable error.

然而，传统的卡尔曼滤波器存在以下问题：问题一，因噪声统计特性估计不准确和计算机舍入误差引起的滤波发散现象；问题二，在卡尔曼滤波器达到稳态时，其误差方差阵将饱和使其对信号的突变变得不敏感，问题三，传统的卡尔曼滤波器对滤波参数无自适应能力，不能随着噪声统计特性的改变而调整自身的滤波参数。

Matlab channel model, the right OFDM Channel modeling, statistical probability of error, and direct transmission error rates.

matlab信道模型，对OFDM信道建模，统计错误概率，并于直接传输的错误率比较。

Used a statistical error rate target socket and use real-time transmission of the small interface procedures, statistical error can b...

一个用来统计误码率并利用socket对象实时发送的小的界面程序，可以配置误码统计的参数。

This thesis discusses the main reasons that the look direction error occurs under the conditions of RS imaging environment, and proposes an approach based on statistical method to correct the error.

本文则从地表微平面反射的角度，分析了地表地形对遥感成像辐射信息的影响，探讨了由成像环境因素引起的视角辐射误差产生的原因及其改正的方法。

Used a statistical error rate target socket and use real-time transmission of the small interface procedures, statistical error can be configured parameters.

一个用来统计误码率并利用socket对象实时发送的小的界面程序，可以配置误码统计的参数。

As far as the seven kinds of interpolation approaches are concerned,the precision of ordinary Kriging method is the best one,and the error of statistical model is relatively high,of which the relative error reaches to 9.041%.

在7种插值算法中，采用指数模型模拟半异矩的普通Kriging法计算精度较高，统计模型的误差最大，其最大相对误差为9.041%。

It is important to decrease the statistical error for improving the measurement precision of Raman lidar for the large statistical error of the Raman backscattering signals.

在拉曼激光雷达探测CO2实验中所采集的拉曼回波信号具有比较大的统计误差，有效减小统计误差，获得较高的探测精度是非常重要的工作。

System stability, steady state error and error convergence are discussed.

深入研究了逆变电源系统的重复控制技术。

On ultra precision lathe, author propose the principle of error in-process measurement and compensation of cylinder, end and contour, and use adjusted straightedge and sensor to build error on-line measurement and compensation control system of end turning.

研究了基于模糊数和插值原理的模糊控制算法，并用该算法实现了压电陶瓷微动刀架伺服系统的闭环控制，使其控制精度达到了±0.01μm；在超精密车床上，提出了圆柱面、端面和轮廓加工的误差在线测量与补偿原理，并利用标定的直尺和传感器建立了端面车削误差在线测量和补偿控制系统。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。