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Integridade no posicionamento RTK e RTK em rede
Barbosa, Eduardo De Magalh?es;Monico, Jo?o Francisco Galera;Alves, Daniele Barroca Marra;De Oliveira, Leonardo Castro;
Boletim de Ciências Geodésicas , 2010, DOI: 10.1590/S1982-21702010000400007
Abstract: technological advances in positioning methods have enabled the development of methodologies that allow its use in a great variety of applications. one method of gnss (global navigation satellite system) positioning of high performance is the rtk (real time kinematic) whose basic principle takes advantage of the high correlation of the errors caused by ionosphere, troposphere and satellite orbit in a reference station and a nearby station of interest, besides requiring a radio link or other communication system to transmit the data from the base to the user. but as the distances increase, the correlation decreases and the performance is reduced. to reduce this problem, the concept of network stations (rtk network) was developed. such approach uses the infrastructure of a network of reference stations to provide corrections to the network users. the rtk and rtk network allows introducing the concept of integrity, widely used in navigation, in the context of geodesy. in this article, we present the concept of integrity and its use for evaluating the integrity on rtk and rtk network in the context of s?o paulo state gnss network. results showed that to guarantee the integrity displayed by hpl
To RTK points in CZEPOS network  [PDF]
Zdeněk Nevosád
Acta Montanistica Slovaca , 2007,
Abstract: For the purpose of checking RTK points, it is possible to use the repeated measurements, the measurement of quantities between the points, or the quantities within connection surveys. Suitable satellite or terrestrial measurements between RTK and surrounding points of the given network may serve for the homogeneity check. For heights check and more accurate, it is convenient to connect the satellite surveys to the levelling control.
海上300 m实潜待选潜水员健康促进生活方式的现状及影响因素  [PDF]
骆芝英,唐艳超,林琳,刘俊松,巩艳秋,陈晓洁
- , 2016, DOI: 10.16781/j.0258-879x.2016.06.0757
Abstract: 目的 探讨海上300 m实潜待选潜水员健康促进生活方式的现状及并分析其影响因素,为潜水员日常系统、持续的健康促进提供依据。方法 对37名参加海军海上300 m实潜的待选潜水员采用健康促进生活方式量表和领悟社会支持量表进行调查,分析潜水员健康促进生活方式的现状及与其他因素之间的关系。结果 待选潜水员健康促进生活方式量表得分平均为(142.87±22.05)分,其中一般10人(27.03%)、良好22人(59.46%)、优5人(13.51%)。各分量表调查结果显示,潜水员自我实现评分最高,得分为(3.03±0.42)分;健康职责评分最低,得分为(2.67±0.46)分。待选潜水员的年龄与体育运动(r=-0.516,P<0.05)、压力处理(r=-0.517,P<0.05)均呈负相关,军龄与体育运动(r=-0.554,P<0.05)、压力处理(r=-0.570,P<0.05)均呈负相关,社会支持与人际关系(r=0.831,P<0.01)、健康职责(r=0.802,P<0.01)、营养(r=0.831,P<0.01)以及健康促进生活方式总分(r=0.785,P<0.01)均呈正相关。结论 海上300 m实潜待选潜水员的健康促进生活方式还有待加强,必须督促和建立待选潜水员正确的生活方式,以保证潜水作业的最终完成。
Objective To analyze the present situation of health promotion lifestyle and its influencing factors of candidates for 300-m saturation diving on the sea, so as to lay a foundation for daily and sustainable health promotion for saturation diving candidates. Methods The health-promoting lifestyle scale and perceived social support scale were adopted for 37 candidate divers participating in the PLA Navy 300-m saturation diving; the relationship between the present situation of health promotion lifestyle and its influencing factors was analyzed. Results The average health promotion lifestyle score of 37 divers was 142.87±22.05, with 10 (27.03%) being general, 22 (59.46%) being good, and 5 (13.51%) being excellent. The results showed that the self-actualization score was the highest (3.03±0.42), and the health duty score was the lowest (2.67±0.46). The age of the divers was negatively correlated with athletics (r=-0.516, P<0.05) and pressure managment (r=-0.517, P<0.05); the length of military service was negatively correlated with athletics (r=-0.554, P<0.05) and pressure management (r=-0.570, P<0.05). Social support was positively correlated with interpersonal relationship (r=0.831, P<0.01), health duties (r=0.802, P<0.01), nutrition (r=0.831, P<0.01), and the total score of the health promotion lifestyle (r=0.785, P<0.01). Conclusion The health promotion lifestyle of candidates for 300-m saturation diving on the sea needs to be improved and stressed. Correct lifestyle should be urged and established for divers to ensure the final completion of the mission
仿冲击振动压实机动力学模型的建立及压实试验  [PDF]
刘本学, 冯忠绪, 赵 侃, 刘晓婷
中国公路学报 , 2007,
Abstract: ?为了解决道路施工中振动压实机影响深度有限、冲击压实机压实不均匀的问题,提出了一种新的仿冲击振动压实机械,建立了该机械与土壤相互作用的动力学模型,推导了机器跳起频率的表达式,分析了机器跳振时,行走距离与振动系数及抛离系数的关系。进而用试验的方法证明了仿冲击振动压实机跳振工况的存在,给出了判断机器跳振的新方法;并对仿冲击振动压实机在跳振与非跳振工况下的压实效果进行对比试验。试验结果表明:仿冲击振动压实与振动压实相比,压实性能有较大提高,更利于深层土壤的压实。
RESEARCH AND ACCURACY ANALYSIS ON REAL TIME KINEMATIC POSITIONING MODEL
RTK定位模型研究与精度分析

Wang Hu,Wang Jiexian,Bai Guixia,Li Haojun,
王虎
,王解先,白贵霞,李浩军

大地测量与地球动力学 , 2010,
Abstract: 提出一种在OTF动态条件下RTK整周模糊度解算的方法,通过矩阵变换使位置参数和模糊度参数分离,叠加模糊度法方程信息;同时针对动态定位中的卫星变化以及周跳的特点,提出了相应的解决方法,该方法可以极大地减少初始化的次数。
GPS-RTK在矿区沉降监测中的应用  [PDF]
鲍金杰,汪云甲
煤炭工程 , 2012,
Abstract: 文章首先提出GPS-RTK已经得到广泛应用,然后对GPS-RTK与全站仪精度的进行分析,得出GPS-RTK在矿区形变监测中具有一定的优势。通过实验来验证GPS-RTK与全站仪在矿区形变监测的数据,可知二者的监测数据具有很高的一致性。因此GPS-RTK在矿区沉降监测中具有广阔的应用前景。
QoS-Aware Reference Station Placement for Regional Network RTK  [PDF]
Maolin Tang
Journal of Software Engineering and Applications (JSEA) , 2009, DOI: 10.4236/jsea.2009.21007
Abstract: Network RTK (Real-Time Kinematic) is a technology that is based on GPS (Global Positioning System) or more gener-ally on GNSS (Global Navigation Satellite System) measurements to achieve centimeter-level accuracy positioning in real-time. Reference station placement is an important problem in the design and deployment of network RTK systems as it directly affects the quality of the positioning service and the cost of the network RTK systems. This paper identifies a new reference station placement for network RTK, namely QoS-aware regional network RTK reference station placement problem, and proposes an algorithm for the new reference station placement problem. The algorithm can always produce a reference station placement solution that completely covers the region of network RTK.
RTK-GPS动态定位精度测试研究  [PDF]
秦世伟,谷川,潘国荣
大地测量与地球动力学 , 2008,
Abstract: ?测试了RTKGPS动态定位的背景噪声;设计直线运动、正弦运动与圆圈运动方式下3种模拟运动装置,并测试了这3种运动模式下RTKGPS的定位精度和效果。测试结果表明,设计的RTKGPS精度测试方法能比较直观地了解RTKGPS的定位精度和优越性。
RTK技术在道路定测中应用的研究  [PDF]
姚连璧, 朱照宏
中国公路学报 , 2000,
Abstract: ?探讨了RTK技术在道路定测中应用的有关问题,包括适用于RTK作业的道路中线任意点坐标的计算、坐标转换、高程计算等,提出了相应的数学模型及处理方法,为改进道路勘测手段、拓展RTK技术的应用领域起到促进作用.
RESEARCH ON ACCURACY TEST OF RTK-GPS DYNAMIC POSITIONING
RTK-GPS动态定位精度测试研究

Qin Shiwei,Gu Chuan,Pan Guorong,
秦世伟
,谷川,潘国荣

大地测量与地球动力学 , 2008,
Abstract: Background noise of RTK-GPS is tested.Three movement simulation equipments are designed,which are linear movement,sinusoidal movement and circular movement.Positioning accuracy and effects of RTK-GPS under three movement patterns are tested.Test results indicate that the test methods designed can make the positioning accuracy and advantages of RTK-GPS understood directly,which has certain positive significance for extending the application of RTK-GPS in dynamic monitoring of large-scale engineering buildings and natural disasters.
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