水准网,leveling network
1)leveling network水准网
1.A new method of automatic calculation based on closed error ofleveling network;水准网闭合差自动解算的新方法
2.This paper processes and data detects the data of theleveling network of No.应用LEGE法(多维粗差同时定位定值法)对万家寨引黄工程北干线1号隧洞水准网数据进行了处理和探测,检验了LEGE法的实用性和可靠性。
3.In the paper,the repetition Situation of Shanghaileveling networks of order 1,2,3,4 in 2001 are introduced,the final adjustment results are analysed and compared with the results of the repetition in 1995,and the suggestions on the applications and repetition of some heights in Shanghaileveling networks are presented.介绍上海市2001年一、二、三等水准网复测情况,对其最终计算成果以及与1995年复测的高程变化进行分析,对现有的上海市水准网高程使用及复测提出建议。
英文短句/例句
1.Adjustment Programming of Level Net on the Basis of MATLAB基于MATLAB的水准网平差程序设计
2.Zoning methods GPS + leveling network in the establishment of regional (may) geoid application分区法在GPS+水准网建立区域(似)大地水准面中的应用
3.THE APPLICATION OF COMPRESS STORE REDUCTION ALGORITHM TO THE ADJUSTMENT OF OBSERVATION EQUATIONS LEVELING NETWORK压缩存储约化法在水准网间接平差中的应用
4.Establishment and application 0f Nicety Second order leveling network In the Yancheng city Sheyang river盐城市射阳河精密(二等)水准网建立与应用
5.Development of general leveling adjustment program based on VB6.0基于VB6.0的加权自由水准网平差程序的开发
6.Study on GPS level fitting methods based on grid model基于格网模型的GPS水准拟合方法研究
7.Thoughts on the tennis technique rating system in China--from standardize education to standardized evaluation对中国网球技术水平分级测评的思考——从标准化教育到标准化测试
8.Analysis of China′s Information Technology Level Based on the Networked Readiness Index;基于网络准备能力指数来分析我国信息化水平
9.Application of BP Neural Networks to Regional Quasi Geoid DeterminationBP神经网络在区域似大地水准面精化中的应用
10.Research on application of the grid model to refinement of quasi-geoid基于格网模型的似大地水准面精化方法的研究
11.Application of the GA-BP Modeling in Refinement GPS Quasi-GeoidsGA-BP网络模型在GPS似大地水准面精化中的应用
12.DESIGNING FOR ACCURACY OF BRIDGE CONSTRUCTION ELEVATION CONTROL NETWORK AND OBSERVATION OF OVER-RIVER LEVELING桥梁施工高程控制网精度及跨河水准观测设计
13.Conversion of GPS Height Based on BP ANNs基于BP神经网络算法的GPS水准高程转换
14.Improve the management level of power grid enterprises through standardization development以标准化建设促进电网企业管理水平的提升
15.Application of Bayesian Regulation BP Neural Network to Fit Two-Kind Quasi-geoidBayesian正则化BP神经网络拟合两类似大地水准面
16.Promote level of rural information service through establishing standards of agriculture website建立农业网站建设标准提升农业信息服务水平
17.Application of Digital Water Level in Control Network Establishment of Building Subsidence Monitoring数字水准仪在建筑物沉降监测控制网中的应用
18.Quasigeoid Grid Network Biquadratic Interpolation Method似大地水准面格网双二次多项式插值方法
相关短句/例句
level network水准网
1.Reserveying of thelevel network gives the subsidence valuse of each area and the subsidence velocity.地面沉降在海河流域平原区普遍存在,通过相隔的水准网观测,确定出各区域地面沉降量和沉降速率,并分析其危害和成因,研究提出科学有效的监测设计方案。
3)leveling-network水准网
1.Leveling-network condition adjustment is a useful adjustment method forleveling-network adjustment.水准网条件平差是水准网平差的一种常用方法。
2.Directing toleveling-network preparation adjustement influenced by initial data precision, give the principles of the preparation adjustement to solve the problems of low precision initial datas influencing network adjustement later point elevation.针对水准网平差受起算数据精度影响 ,给出配置法平差的原理 ,解决了低精度起算数据对网平差后未知点高程的影响问题。
4)level net水准网
1.And that,these method are used inlevel net,it illuminates that our methods are validity.在系统误差为随机变量的情况下,利用加权两阶段估计及抗差加权两阶段估计研究半参数模型得到了参数及非参数的估计;接着,讨论了估计量的影响函数及渐近方差 协方差;最后,运用自由水准网的例子说明本文方法的有效性。
5)GPS leveling networkGPS水准网
1.It is demonstrated in this paper that the accuracy of the interpolation point depends on not only the accuracy of the localGPS leveling network but also the topography and the resolution of the gridded gravity network in the corresponding area.在已布设GPS水准网的地区 ,若需内插其中任意一点的高程异常值时 ,应该了解该内插值的精度。
2.It has been demonstrated in the paper that the accuracy of the interpolation point depends not only on the accuracy of the localGPS leveling network but also on the topography and the resolution of the gridded gravity network in the corresponding area.在已布设GPS水准网的地区,若需内插其中任意一点的高程异常值时,应该了解该内插值的精度。
6)accurate level net精密水准网
1.This paper introduced the process of the construction of fiducial system for modern surveying of Wuhan city on the whole,then explained and analysed the data process and test of WHCORS、high accurate GPS reference network、accurate level net and areal geoid refine in Wuhan.介绍了武汉市现代测绘基准体系建设的基本情况,对WHCORS系统、高精度GPS控制网、精密水准网、区域似大地水准面精化等方面分别介绍了数据处理和测试的有关情况,分析了体系建设的主要特点和创新点。
2.This paper summarized the background and basic content of the construction of fiducial system for modern surveying of JiNan,then detailedly introduced the data process and test of high accurate GPS reference network、accurate level net and geoid refine and JNCORS,and the corresponding innovation and application are analysed.概述了济南市现代测绘基准体系建设背景和基本情况,详细介绍高精度GPS网、精密水准网、济南似大地水准面精化、JNCORS系统的建立、数据处理及测试等有关情况,分析了济南市现代测绘基准体系的创新点和应用前景。
延伸阅读
国家水准网国家水准网nationallevelingnetwork在全国领土范围内，由一系列按国家统一规范布设和测定高程的水准点所构成的网。又称国家高程控制网。为国家经济建设、国防建设和科学研究提供地面点高程，也为天文大地网、地形图测制提供高程控制。国家水准网采用由高级到低级，分几个等级布设，逐级控制、加密。各等级的水准路线构成闭合环线。一、二等水准路线是高程控制网的基础，沿地质构造稳定、坡度平缓的交通路线布设，用精密水准测量施测。一、二等水准路线定期重复测量，用以研究地壳垂直运动。为了计算观测高差的有关改正，沿一、二等水准路线还要实施重力测量。三、四等水准路线加密一、二等水准网，直接为地形图测制提供高程控制。为了建立全国统一的高程控制网，必须确定一个水准基面，作为网中所有水准点高程的起算基准面，通常采用大地水准面作为水准基面，它是以沿海验潮站长期的海水面升降观测结果取平均值而确定的。严格说来，以不同验潮站所得的平均海面为基准来求同一水准点的高程，其结果各不相同。国家水准网一般采用一个验潮站所确定的平均海面作为水准基面。并在验潮站附近设置永久性水准原点，将水准基面可靠地标定在地面上，由精密水准测量测定这一原点对于验潮站平均海面的高程，作为国家水准网推算高程的基准。中国国家水准网中的水准点的高程是由一、二、三、四等水准测量测定的。一等水准路线全长约93000千米，包括100个闭合环，闭合环周长1000～1500千米。在一等闭合环内由二等水准路线将其划分为周长500～750千米的小环。用三等水准路线将二等水准环分为若干个更小的环，再用四等水准路线进一步加密。中国测定平均海面的验潮站设在青岛市，采用该站1950～1956年的验潮资料推算的黄海平均海面作为水准基面，定名为黄海平均海面。由这一基准面起算的高程系统称为1956年黄海高程系统。中国的水准原点设在青岛市观象山上，它相对黄海平均海面的高程为72.289米。国家各等级水准点的高程都依据该点的高程推算。由黄海平均海面起算的高程称绝对高程或海拔高程，在一般应用中简称海拔或标高。
