Advanced Algorithm Development for Real-time Kinematic Precise Point Positioning

实时运动精确单点定位的先进算法开发

• 批准号: 217056-2013
• 负责人: Gao, Yang
• 金额: $ 2.04万
• 依托单位: University of Calgary
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=546511
• 关键词: Advanced; Algorithm; Development; Real; time

Application of precise point positioning (PPP) in real-time kinematic (RTK) mode faces several significant challenges that must be addressed in order to meet application need and to realize its great commercial value. PPP currently requires a long convergence time (typically tens of minutes) before its float solution can reach the decimeter precision. For PPP to provide cm accurate solution the integer ambiguities of its phase measurements must also be resolved but this currently requires a very long initialization time. A lack of a high level of reliability for its solution is another limiting factor for its commercial applications.

精密单点定位(PPP)在实时运动学(RTK)模式中的应用面临着几个重大挑战，为了满足应用需求并实现其巨大的商业价值，必须解决这些挑战。PPP目前需要很长的收敛时间(通常为几十分钟)，其浮点解决方案才能达到分米精度。为了使PPP能够提供厘米级的精确解决方案，还必须解决其相位测量的整周模糊度，但这目前需要非常长的初始化时间。其解决方案缺乏高水平的可靠性是其商业应用的另一个限制因素。