RTK positioning precision forecast method and system
A positioning accuracy and forecasting system technology, applied in the field of surveying and mapping positioning, can solve problems affecting the accuracy of surveying and mapping
Active Publication Date: 2016-07-20
GUANGZHOU HI TARGET SURVEYING INSTRUMENT CO LTD
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[0003] RTK positioning accuracy is of great significance to surveying and mapping. If the positioning accuracy does not meet the requirements, it will seriously affect the accuracy of surveying and mapping.
At present, the monitoring and forecasting technology for ionospheric TEC is mature. For example, Trimble Corporation of the United States has a real-time ionospheric TEC monitoring and forecasting system; however, there is no corresponding method and system for RTK positioning accuracy forecasting.
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[0021] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.
[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "or / and" includes any and all combinations of one or more of ...
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The invention discloses a RTK positioning precision forecast method and a system which are characterized by: acquiring ionosphere TEC forecast information; acquiring a RTK precision model which is established on the RTK positioning precision information and ionosphere TEC information; the RTK positioning precision information including time, baseline, and RTK positioning precision; the ionosphere TEC information including the time, the baseline and ionosphere TEC; based on the ionosphere TEC forecast information and the RTK precision model, determining RTK forecast precision. According to the invention, through the ionosphere TEC forecast information and the RTK precision model, the RTK positioning precision forecast method and system enable users to predict RTK positioning precision based on the ionosphere TEC forecast information and obtain a prediction result which is the RTK forecast precision of time to be forecasted, so that further processing can be conducted based on the prediction result.
Description
technical field [0001] The invention relates to the technical field of surveying, mapping and positioning, in particular to a method and system for forecasting RTK positioning accuracy. Background technique [0002] RTK (Real-time kinematic, real-time dynamic control system) is one of the most commonly used surveying and mapping methods in the field of surveying and mapping, and is an indispensable measurement technology in the field of surveying and mapping. However, RTK is a technology that "depends on the sky" and is often affected by various external factors such as ionospheric interference and solar activity. Especially ionospheric interference, no matter from theoretical calculation or actual measurement, ionospheric TEC (TotalElectronContent, total ionospheric electron concentration content, also known as ionospheric electron concentration column content, integral content, etc., is the electron concentration in a unit area along the The concentration of height integr...
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IPC IPC(8): G01S19/41
CPCG01S19/11G01S19/41G01S19/45
Inventor 谢锡贤方春水罗泽彬郭灿桦廖少翔
Owner GUANGZHOU HI TARGET SURVEYING INSTRUMENT CO LTD