基线长度

GPS姿态测量系统基线长度和天线布局设计

The design of baseline length and antenna configuration for GPS attitude determination system

针对某些GPS动态定位中基线长度精确已知的特性，提出了附有基线长度约束的LAMBDA方法，同时在实践中使用两步搜索，对LAMBDA方法进行了优化。

This paper puts forward LAMBDA algorithm with baseline length constraint and a two steps search method .

基于各主要误差源的模型分析，建立了双目视觉系统3D测量误差与摄像机参数、基线长度、测量距离等因素之间的关系式。

The relationship between the depth error of a stereo vision system and other factors such as baseline , depth and camera parameters , are presented .

利用SLR资料解算武汉&上海基线长度及结果分析

Solution of wuhan-shanghai baseline length from SLR data and analysis of the result

以基线长度变化率为约束估算VLBI站的垂直形变率

Estimations of vertical deformation rates of VLBI stations by constraints of rates of baseline length change

分析双CCD交汇测量系统中测量精度有效视场与基线长度、像机仰角和视场角三个参数之间的数学关系；

In dual-CCD non-orthogonal intersection measurement system , distance between two CCDs , elevation angle and viewing angle are three most important factors for final precision of outcomes .

在GPS姿态测量系统工程实施和设计过程中，天线的布局和基线长度计是影响姿态测量精度和实时性的关键因素。

The antenna configuration and baseline length are key factors which ensure the attitude accuracy and real time in GPS attitude determination while the GPS attitude determination system is put in practice and designed .

本文采用国际空间数据分析中心提供的GPS和VLBI实测站速度数据解算并置站间的基线长度变化率。

This thesis calculated the baselines length changing rate between the same sites through GPS and VLBI sites ' velocity data which provided by GSFC and JPL .

LAGEOS激光测距获得的基线长度

The baselines obtained from laser ranging to satellite LAGEOS

研究结果表明，VLBI基线长度变化率比GPS的相应值系统性地偏大约2%，GPS基线长度变化率比VLBI的相应值快一个常值（约0.6mm/a）。

The results indicated : The baselines length changing rates of baselines of VLBI measurement are 2 % higher than that of GPS , while GPS changes faster than VLBI by a constant ( approximately 0.6 mm / a ) .

研究双站2D定位面积与定位精度之间权衡的问题，并获得对应最大定位区域以及最大高精度定位面积的临界基线长度的取值规律。

Fourthly , tradeoff between positioning accuracy and region is studied in 2-D positioning by two radars , and the critical values of the baseline length is found , that corresponding to the largest area in which targets can be positioned precisely enough .

VS新型垂直摆倾斜仪，由于其机械本体更稳定，仪器底板采用等腰三角形结构，增加了仪器的基线长度，进而减小了安装误差对仪器性能的影响；

The VS new vertical pendulum tilt meter has more stable mechanical body . Its bedplate uses the isosceles triangle structure , which increases the baseline length of the apparatus , as a result , the influence of install error reduces .

利用VLBI实验中高度截止角与基线长度重复率的关系、探空气球（radiosonde）、PRARE资料比较了各种映射函数的结果。

Comparing the different mapping functions by using the PRARE and radiosonde and the relation between the elevation cut off and the repeatability of baselines obtained in VLBI experiment .

第二，结合姿态角约束，使用金字塔算法提高了整周模糊度求解效率。经过实验，算法在基线长度为3m的条件下，航向角精度优于0.1°。

Second , under the constrain of attitude angle , we use the pyramid algorithm to improve the efficiency of ambiguity search under the condition of three meter length baseline , the accuracy of the yaw can reach 0.1 .

给出了基于声波到达方位（BOL）的双基地声呐定位算法，分别研究了基线长度和角度测量误差等因素对该算法定位精度的影响。

In this paper , the Bear Only Localization ( BOL ) algorithm for bistatic sonar is presented . The localization accuracy of the algorithm for different baseline length and bear measurement error is studied .

利用基线长度为20km的静态数据进行试验，试验表明，经120秒低通滤波，载波相位直接法的精度比位置微分法高约34%。

Experiment was carried out using static data with baseline length of 20km , it showed that the accuracy of carrier phase direct method was higher 34 % than position differentiation method after 120 seconds low pass filtering .

利用已知的基线长度的约束条件，对搜索空间进行了简约，提高了求解整周模糊度的速度，同时，通过Cholesky分解提高搜索效率。

Adopting constraint condition that length of base line is known , search space is reduced , as a result , the speed to solve integer ambiguity resolution is improved , at last , Cholesky Decompose is employed to enhance solution efficiency .

经过静态和动态车载试验证明GPS姿态传感器切实可行，在基线长度为1.8m的条件下，航向角准确度能够达到0.1°。

Which carried by a car has been ( tested ) at static and dynamic state on the highway . Proved that the GPS attitude sensor is practicable . Under the condition of 1.8 meter baseline , the accuracy of the yaw angle can be reached to 0.1 ° .

测地式系统的基线长度约为0.8m，定向精度优于1密位（0.06°，1σ），定向时间少于4min。

The ground-used system has a baseline about 0.8m long . The orientation can be determined by the system in less than 4 minutes with a precision better than 0.06 ° ( 1 σ) .

基线长度变化率反映了测站间的地壳运动情况。

The changing rates of baselines reflected crustal motion of different sites .

仿真了定向精度与基线长度、载波相位测量误差、方位角及高度角的关系。

Simulated the relation between orientation and length , carrier phase measurement error , azimuth , elevation .

分析了雷达测距精度、雷达基线长度对系统定位精度的影响。

The influence of the error of distance scaling and the length of baseline on the positioning precision is analyzed .

突破了单星雷达受天线基线长度的限制，具有更窄的波束宽度，但是会产生较多的孔径干涉栅瓣。

A long baseline with narrower beamwidth can also be provided by distributed space-based radars at the cost of appearing grating lobes .

该方法选择基线长度满足一定的参差关系，从而解决了测向精度与最大不模糊角度之间的矛盾。

The algorithm selects baseline length satisfied stagger qualification , thereby solving conflict between accuracy of direction finding and maximum unambiguity angle .

证明这两种基线长度和安装方式不同的仪器，观测到的地层应变在固体潮频段具有可比性。

That concludes these instruments with different baseline and different working principle , can observe comparable earth strain in the solid tidal band .

为了把基线长度和姿态的误差引入轨道空间位置，提出了相应的数学模型。

In order to introduce the errors of the baseline length and attitude into orbital position , we propose the corresponding mathematical model .

并提出一种参数分离的方法对传感器进行了标定，采用消隐线法标定激光平面的法矢量，利用交比不变原理标定激光平面的基线长度。

A Vanishing Line method is proposed to calibrate the normal vector of light plane and invariability of cross-ratio is proposed to calibrate the baseline length .

仿真结果表明，当测距误差较小、基线长度适当时，该系统可以得到较高的定位精度。

When the error of distance scaling is small and the length of baseline is proper , the simulation shows that high positioning precision could be obtained .

在给定卫星阵列基线长度和卫星间最小间距约束的条件下，通过仿真实验验证了该方法抑制栅瓣的有效性。

When the baseline of satellites array and the minimum spacing are given , the effectiveness of this grating lobes suppression method was validated by the simulated results .

第六章提出了利用三差观测量和基线长度约束快速检测修复周跳的算法。

In chapter 6 , an algorithm is proposed which utilizes the triple difference observables to detect the cycle slip and corrects cycle slip by baseline length constraint .