查询词典 filter

In real flight, multiple sensors of aircraft engine control system may fault at a time. In order to solve this problem, a revised multiple-failure-hypothesis based testing is investigated. This approach uses multiple Kalman filters, and each of Kalman filter is designed based on a specific hypothesis for detecting specific sensors fault, and then uses WSSR (Weighted Sum of Squared Residual) to deal with Kalman filter residuals, and residual signals are compared with threshold in order to make fault detection decisions. The simulation results show that the proposed method can be used to detect multiple sensors soft failures fast and accurately.

一般认为两个以上传感器同时发生故障的概率较小，但实际上不能排除其发生的可能性；提出了一种改进的多重故障假设方法来解决航空发动机控制系统多传感器同时发生软故障的问题，这一方法采用一组卡尔曼滤波器，每个滤波器对应一个被检测传感器的故障模态；采用残差加权二乘方处理滤波残差并与门限值作比较来判断是否发生故障；仿真结果表明，所提出的方法能有效解决多传感器软故障的检测与隔离问题。

Traditionally, a damp resister is added in the input LC filter of VSRR to prevent resonance of the filter, which leads to extra cost and losses.

为抑制LC高通滤波器的谐振，在传统的设计中，需要加入阻尼电阻，由此增加了系统的成本，增大了系统的损耗。

We researched fingerprint filter base on fingerprint direction.(2) Comparing some algorithms about binarization in common use, binarization based on band-elimination filter and potential difference binarization are provided, which greatly improved the retentivity of fingerprint characteristic and fingerprint binarization buildup algorithm.

研究了目前常用二值化算法的优缺点，提出了基于带阻滤波的指纹图像二值化处理方法和指纹图像相位差分二值化处理方法，大大的提高了二值化对指纹特征的保持度，以及二值后处理方法——二值指纹图像方向图增强算法。

The article measures deterring force of osmosis water after and before using of different twist filter by experiment and proves the impact of adding twist which can be able to reduce jam and improve the retexture functions of woven filter clothing.

本文试验测定了不同捻度丝线制织的机织滤布在使用前后的透水阻力，验证了加捻作用可以减少堵塞，提高滤布的再生性能。

Do you have an RO filter or other type of water filter?

你有RO过滤器或其他的过滤器吗？

It is showed in practical applications that morphological filter is better than traditional low-pass filter to process images got by rosette scanning system.

实际的应用表明：在玫瑰扫描亚成像系统中，前者较优。

When the filter is worked under deep integrated mode, we used the Potteralgorithm of square root filter to avoid calculate disperse, which is conduced by the accumulate of round off error. So we enhanced the systems robustness.

3在深组合工作方式下，卡尔曼滤波采用了平方根滤波的Potter算法，以避免因舍入误差积累造成滤波器的计算发散，提高了组合系统的稳健性。

Through a filter experimentation on a typical scalar quantity non-linear system, we made a comparison of the performance on these algorithms, and the results showed that these improved algorithm improve the performance of particle filter in different degree, and the UPF has the best performance.

通过对一典型标量非线性系统的滤波实验，对4种改进算法的性能进行了仿真比较，实验结果表明，4种改进算法都从不同程度上改善了粒子滤波器的性能，其中，UPF的性能最优。

Test results using polarimetric SAR data of San Francisco show that images filtered by this method have mean values closer to the unfiltered images than with a subspace based filter. After the filtering process, targets with different scattering characteristics are more separable in the characteristic space; therefore, this filter improves terrain classification.

实验结果表明：利用旧金山地区的真实极化SAR数据，使用该方法滤波的图像结果与原有的子空间滤波器相比，更接近原始图像的均值，并且通过滤波提高了不同类别的目标在特征空间的区分度，从而有利于不同类型地物的分类。

Or the sequencer can control the filter cutoff or the filter resonance.

或音序器可以控制滤波器的cutoff或过滤器的共振。

Must have Coordination and negotiation skill, flexible ideas, and be punctilious person.

必须具备较好的协调与谈判能力，头脑灵活，工作认真仔细

Result: 18 patients are all with simple eye.The pigment mole lies in nasal and temple sides of the ball conjunctiva,in which 2 lie in lacrimal caruncle and semilunar plica.

结果：18例患者均为单眼，色素痣大多数位于内外侧睑裂部球结膜面，2例位于泪阜及半月皱襞，经激光治疗后，10例色素痣消失，有5例行再次激光后消失，2例行第三次激光后消失，1例第四次激光后消失。