Study on nonlinear alignment method for low precision INS 适用于低精度惯导的非线性对准方法研究
The special pattern for feature extraction and the re-alignment idea furthest decreased the effect of the cameras-performances on the alignment precision. 特征图案的正确选择和二次校准方法最大限度地降低了摄像头性能对校准精度的影响;
Alignment of High Precision Thin and Long Rod 高精度细长杆的校直
As a new alignment technology between mask and silicon wafer, the technology can offer a better than 20 nm alignment precision repeat used in lithography systems. 该系统作为一种新型的掩模-硅片对准技术,应用于光刻机中可获得优于20nm的定位对准精度。
Simulation result showed that the new algorithm improved the alignment precision and decreased the computation cost greatly. It is of great significance in practice. 实验仿真结果表明,这种基于卡尔曼滤波器和粒子滤波器级联模型的算法降低了计算量,大大提高了初始对准的精度,具有重要的现实意义。
This paper researches on alignment modes, exposure source, alignment stage and other critical techniques in double? sided exposure technology, and expounding analysis of alignment stage precision by many years working experience. 对双面曝光技术中的对准方式、曝光光源系统、对准工作台等关键技术进行了研究,并通过多年工作实践经验,对对准工作台的精度分析作了论述。
From the results of experimentation, the method can make the mark image edge achieve good edge localization and improve the alignment precision. 从实验的结果来看,这种方法能够对对准标记达到很好的边缘定位,提高了对准精度。
The purpose of this article is to introduce the approaches for precision positioning using laser morie sensor, and morie signal's displacing characteristics, by which the inclination of gratings affects alignment accuracy of precision alignment system. 介绍利用激光干涉莫尔信号的精密定位方法,给出激光莫尔信号传感器光栅设定角度误差时的莫尔信号位移特性,以此说明了光栅设定的角度倾斜如何影响精密定位装置的定位准确度。
In this paper, we demonstrate that the alignment precision can be improved by a spatial filter, which filters out the zero-order frequency of the cone wave. 本文提出了提高锥面波直线准直精度的一种方法即空间滤波法。
The multiple-view 3D camera based on our method will have many advantages: simple system, no additional operation and special requirement when capturing, computable alignment precision, automatic and rapid capturing and alignment processing. 本方法构成的多视角三维相机将具有系统简单,采集过程无需附加操作和特殊要求,可确定的对齐复位精度以及全自动化的快速采集复位过程等特点。
Combining this method and the lexical criteria results in an alignment precision of 99 3%. 与基于词汇的方法结合后,对齐准确率为993%。
The high alignment accuracy of precision position is very important. 精密定位的高精度是精密定位技术研究的重要课题。
The wavelet transform is adopted to filter the output signal of ring laser gyroscope ( RLG) in order to reduce the influence to the alignment and navigation precision of the RLG inertial navigation system ( LINS). 为了减小激光陀螺随机误差对激光捷联惯导系统对准、导航精度的影响,采用小波分析方法对其输出信号进行滤波处理。
A method is discussed to improve the automatic alignment precision of INS by eliminating external disturbance with noise canceling technique. 研究了采用消噪技术消除弹体摇摆干扰影响,提高惯导系统自对准精度的方法。
The original alignment precision impacts directly on the precision of the INS ( inertial navigation system). The time used in original alignment processing is an important military tactics technique index of the INS. 初始对准的精度直接关系到捷联惯导系统的工作精度,初始对准的时间是捷联惯导系统的重要战术技术指标。
This paper evaluates Gabor feature for face recognition from a new angle of its robustness to mis-alignment using a novel quantificational evaluation method which combines the alignment precision with the recognition accuracy. 文章用一种全新的量化评价方法,结合配准精度和识别率,从误配准鲁棒性角度评价Gabor特征在人脸识别中的优越性。
Iterative filtering can obtain higher alignment precision than extended Kalman filtering. 迭代滤波比扩展卡尔曼滤波能在更大程度上改善对准精度,但计算量大。
This paper briefs above and also tells that high-precision locating platform is necessary to ensure the high alignment precision. 随之而来的是要有高精度的定位工作台,以保证高套刻精度的要求。
Technique to guarantee the arc alignment precision of caster 保证连铸机对弧精度的技术
Measures for Restoring the Arc Alignment Precision of Continuous Caster 关于连铸机对弧精度的恢复措施
The whole system runs smoothly and its alignment precision and production efficiency both meet requirements which make alignment become real automation and improve the production efficiency and technological competitiveness of enterprises. 整套系统目前运行正常,校直精度和生产效率均达到要求,使导轨真正实现全自动化校直,提高了企业的生产效率和技术竞争力。
The influence on the bonding imaging and the alignment precision of chips and substrates caused by the effects of turbulence during bonding was analyzed. 本文利用热超声倒装键合机为实验平台,对键合过程中因加热所带来的湍流效应对键合成像和芯片与基板对准精度的影响进行了研究。
To keep the alignment precision after transfer alignment, the whole-track transfer alignment method and the attitude matching tracking method were developed. 提出全程传递对准方法和姿态匹配跟踪方法,在传递对准完成后保持传递对准的对准精度,并通过了仿真验证。
The applications of the control system in practice show that the alignment precision and alignment speed of automatic alignment system can be improved greatly, with the help of the control system. So it has very good prospect in application. 该控制系统采用高效而可靠的DSP芯片TMS320LF2407A作为自动对位控制芯片,并通过实际应用证明该系统能大大提高各类对位系统的对位精度和对位速度,因而具有广阔的应用前景。
With the shafting alignment, precision machine tools, and large aircraft manufacturing in the rapid development of technology, There is the higher demand of Concentricity measurement. 随着主推进轴系校中、大型转轴、精密机床、大型飞机制造等技术的快速发展,对同轴度的测量提出更高的要求。
Based on this, the artificial cavity mirrors alignment has been realized and applied widely. However, the existing approach has inevitable disadvantages of limited alignment precision, long time consumption, and poor repeatability in actual construction. 但是工程应用中该方法不可避免的存在调腔精度受限、耗时长、可重复性差等缺点。
Inertial navigation system has the characteristic of self-alignment, the alignment precision directly influences the navigation accuracy and the alignment time affects the response rapidity. 惯性导航系统具有完全自对准的特点,其初始对准精度和对准时间直接影响惯性导航系统的工作精度和反应时间。
In the alignment of the precision experiment, the location and angle measurements of the incident light beam require extremely accuracy. 尤其是在需要精密对准的实验中,对入射光束的位置和角度测量都要求极高的精度。