查询词典 positioning

A correlation system for Time Division Multiple Access positioning systems is disclosed, whereby a position receiver acquires, tracks, and demodulates a plurality of Code Division Multiple Access modulated positioning signals are pulsed in a Time Division Multiple Access scheme.

公开了一种用于时分多址定位系统的相关系统，借助该系统，定位接收机可以捕获、追踪和解调多个在时分多址方案中被脉冲化的码分多址调制的定位信号。

Precise positioning using Moiré signal from double grating diffracting has high sensitivity and positioning accuracy.

利用双光栅衍射得到的激光莫尔信号进行精密定位具有很高的灵敏度和定位精度。

By the proportionally minified indoor positioning experiment, the results gained verify the effectiveness and applicability of the positioning method.

通过室内按比例缩小所进行的试验及其所得结果，验证了有效性以及其在浮吊中的可应用性。

So the two methods have been chosen to detect and estimate the center of a tropical cyclone over China offshore.They are the Geometric Axisymmetric Center Positioning Method and the Velocity Distance Azimuth Display Positioning Method,respectively.The former decides the position of a tropical cyclone center using directly the Doppler radar radial velocity field,the latter does the position using the productV_(r×D of the Doppler radar radial velocity valueV_(r and the distance from observation site to radar center.

两种客观方法分别为几何轴对称中心定位法和速度距离方位显示中心定位法，前者直接应用多普勒径向速度场进行定位估计，后者则应用观测的多普勒径向速度场与观测点至雷达中心距离的乘积来估计台风中心位置。

Moreover, the accuracy analysis for different measurements and parameters(such as time measure error, azimuth measure error, buoys error, baseline length and sound velocity fluctuation) are given respectively. To make the best use of the observation datas, the weighted least square localization algorithm is used to improve the accuracy in bistatic sonar. The simulation results show that the positioning accuracy of this algorithm is higher than the other four algorithms, with which the positioning accuracy in stations areas and side areas can be improved effectively.

同时，通过对系统各个因素，如系统的各观测量的测量误差、站址误差、基线长度、声速波动等参数对算法性能的影响，得出了各方法定位误差的分布规律；为了充分利用双基地声纳系统的观测数据，提高系统的定位精度，采用加权最小二乘方法对系统的数据进行优化处理，仿真结果表明该方法定位精度明显高于基本方法的定位精度，能有效的改善发射站和接受站侧边区的定位精度，且定位性能受站址测量误差的影响较小。

Therefore, we can choose a little worse east and north gyros to cut down the cost of the navigation system.Thirdly, SINS/OD integrated system fails to diminish the error of azimuth angle, this paper introduces the regional positioning system based on Pseudo-Satellite as a member of the integrated system to diminish the error of azimuth angle in the moving state, and further improve the precision of positioning and orientation.

仿真结果表明，天向陀螺漂移和初始方位误差角对系统的定位精度影响较大；而东向和北向陀螺漂移对系统定位精度的影响较小，因此系统中就可以适当放宽对东向和北向陀螺精度的要求，这样就可以适当降低系统的成本。

Simulation results indicate that the drift of up gyro and the initial error of azimuth angle have significant effect on the positioning precision, however, compared with the drift of up gyro, the drifts of east and north gyros have less effect on the positioning precision.

第二，详细分析了东、北、天三个方向的陀螺漂移及初始方位误差角对SINS/里程仪组合系统定位精度的影响。

On the scale of punch and die with punching and bending die punch; Die positioning pulled positioning and bending Die top two pieces of equipment; 6 punch with epoxy fixed on the next model, since blanking punch and bending die role.

上模为凸凹模起冲裁凹模和弯曲凸模作用；模具中定位板起定位和弯曲凹模顶件装置两种作用；六个凸模用环氧树脂浇注固定在下模上，起冲裁凸模和弯曲凹模作用。

When machining parts with bore as positioning reference, if clearance fit positioning is adopted, machining accuracy is certainly affected due to the existence of clearance.

在精加工以内孔为定位基准的零件时，所用芯轴类工装如果采用间隙配合定位，由于定位间隙的存在，必然影响零件的加工精度。

Thrust: 105N; Positioning signal: a double-digit; Positioning time: 180s; With spring reset function: NC - valve closed, NO - the valve to open; Stroke: 2.5mm; Protection class: IP43 (perpendicular to the ± 45 ^ 0), IP41; Ambient Temperature: 1 ℃ to 50 ℃; Installation position: Vertical to 90 ^ 0 angle; Valve connection: M30 × 1.5mm nut.

推力：105N；定位信号：双位；定位时间：180s；带弹簧复位功能：NC -阀门闭合，NO -阀门打开；行程：2.5mm；防护等级：IP43(垂直到±45^0)，IP41；环境温度：1℃到50℃；安装位置：竖直到90^0倾角；阀门连接：M30×1.5mm螺母。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。