The filter factors calculated based on the available quantile statistics are not exact, but the estimate error is below 5%, even when only 20 values are collected.
根据已有的分位数统计信息计算出来的过滤因子不是很精确,但即使只收集20个值,其误差仍然低于5%。
When using an OLAP-based package, a report containing a summary filter with an invalid scope produces the following error.
使用基于OLAP的包时,包含一个具有一个无效范围的摘要过滤器的报告将生成以下错误消息。
When using an OLAP-based package, a report that uses a detail filter containing the NOT operator applied to a hierarchy produces the following error
使用基于OLAP 的包时,如果报告使用一个细节过滤器,而该过滤器包含了一个应用到层次结构的NOT操作符,那么执行报告将生成以下错误消息
Then the filtering error is estimated and filter parameters are adjusted based on the binary data.
依据二值化的结果估计滤波的误差,并调整滤波器参数。
Based on building up a model of echo canceller, the convergence of gradient-type stochastic adjustment algorithm of an adaptive filter under the mean-squared error criterion is discussed.
在建立回波抵消器模型的基础上,按最小均方误差准则,导出了自适应滤波器抽头的统计梯度算法和抽头调节的收敛公式。
The effect of amplitude and phase error on the performance of receiver is discussed in this paper, and a method of digital correction based on FIR filter is proposed.
本文仔细分析了幅相误差对接收机性能的影响,提出了基于FIR滤波的一种数字域校正的方法。
The paper sets up a time sequence model of laser gyro random error and processes the drift data by Kalman filter based on the model.
在对激光陀螺漂移数据建立时间序列模型的基础上,对激光陀螺的漂移数据进行了卡尔曼滤波。
Considering the character of vector observation, a real time predictive filter based on minimum model error (MME) criterion is presented for satellite attitude estimation.
结合矢量观测的特点,基于最小模型误差准则给出了一种确定卫星姿态的实时估计算法,称为预测滤波算法。
The bit error ratio (BER) of the system over weak turbulence based on adaptive filter is below 10 ~ (-8), which can satisfy the communication requirement.
在弱湍流情况下,基于自适应最小均方滤波器的系统误码率(BER)低于10 -8,可以满足网络通信的要求。
The Predictive Filter is an estimation method based on nonlinear system model, which determines the optimal model error using a one-step ahead control approach to provide accurate state estimations.
预测滤波器是一种基于非线性系统模型的滤波方法,它通过使输出一步前向预测误差最小来估计模型误差,具有较高的估计精度。
Unified fixed point coordinate transformation (UFP-CT), and a novel zero steady-state error current control method for active power filter (APF) based on UFP-CT were proposed.
提出一种统一定点坐标变换和基于该变换的有源电力滤波器零稳态误差电流控制方法。
And the weight of each filter is updated using Bayes theory based on the assumption that the difference between estimate and measurement bearings obeys Gaussian distributions with zero mean error.
通过假设预测方位和实测方位差值服从零均值的高斯分布,利用贝叶斯理论来修正各滤波器的权重。
A new approach to FMCW radar detection of velocity deception jamming based on adaptive linear prediction error filter is described in this paper.
针对调频连续波(FMCW)雷达,提出了采用自适应线性预测滤波预处理实现速度欺骗干扰的检测。
This paper propose a novel alterative step LMS auto-adapted filter algorithm based on mean squared-error estimation.
介绍了一种基于均方误差估计的新变步长LMS自适应滤波算法。
And they are often distorted. First, a low passed filter is used to smooth the contour. And a polygon approximating method based on area error is used to approximate the contour.
鉴于这种情况,我们先使用低通滤波对轮廓曲线作光顺处理,随后再采用基于面积误差的多边形逼近法对曲线作逼近处理。
This is a intelligent instrument based on MCU. It is adopted that synchronization measure principle and digital filter technique for test. that phases error. Development of sensor.
力矩器定圈组件正交性误差检测装置是一台基于单片机控制的智能仪器,该机采用同步测量原理及数字滤波技术,实现各相误差的检测。
The results show that the filter based on the time sequence model can effectively decrease the random error.
结果表明,基于时间序列模型的卡尔曼滤波器有效地减小了随机误差。
The results show that the filter based on the time sequence model can effectively decrease the random error.
结果表明,基于时间序列模型的卡尔曼滤波器有效地减小了随机误差。
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