A method and device for positioning using satellites, and a method and device for satellite timing
A satellite timing and satellite technology, applied in the field of positioning and timing of global navigation satellite systems, can solve the problems of high timing accuracy, loss of timing accuracy, poor applicability, etc., and achieve the effect of improving timing accuracy and improving timing availability.
Active Publication Date: 2021-07-27
UNICORE COMM INC
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the existing fixed coordinate mode has high timing accuracy but poor applicability, and the coordinate unknown mode has strong availability but loses timing accuracy
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0065] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.
[0066] Such as figure 1 Shown, according to a kind of satellite timing method of the present invention, comprises the following steps:
[0067] Step 101: Obtain satellite observation information, use the obtained satellite observation information to calculate various error items that affect the pseudo-range observation value, and obtain the corrected pseudo-range observation value according to the calculated error items;
[0068] It should be noted that how to use the obtained satellite observation information to calculate various error terms that affect the pseudorange obse...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
This application discloses a method and device for positioning using satellites, a method and device for satellite timing, including obtaining satellite observation information, using satellite observation information to calculate various error items that affect pseudo-range observation values, and correcting them according to the calculated error items After the pseudo-range observation value; detect whether the receiver position coordinates are known; if the receiver position coordinates are unknown, use the corrected pseudo-range observation value to calculate the receiver position coordinates at the current moment; use the calculated error items, corrected Calculate the receiver clock offset based on the pseudo-range observation value and the known or calculated receiver position coordinates; adjust the receiver local clock according to the calculated receiver clock offset. By detecting whether the position coordinates of the receiver are known, the application adaptively supports two timing modes of fixed coordinates and unknown coordinates, which effectively solves the limitation of the receiver position coordinates on the application of the single-station timing method, and improves the global navigation satellite system. timing availability.
Description
technical field [0001] The present invention relates to the technical field of positioning and timing of a global navigation satellite system (Global Navigation Satellite System, GNSS), and in particular to a method and device for positioning using satellites, and a method and device for satellite timing. Background technique [0002] With the rapid development of modern science and information technology, all walks of life, such as military, aerospace, deep space exploration, communication, transportation, electric power, finance, national defense, etc., have higher and higher requirements for time and frequency accuracy, and high-precision time references have become One of the basic guarantee platforms in the fields of communication, electric power, radio and television, security monitoring, industrial control, etc. [0003] The use of GNSS satellite timing is currently the most effective way for long-distance and large-scale high-precision time synchronization. GNSS tim...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01S19/40G04R20/02
CPCG01S19/40G04R20/02
Inventor 陈孔哲王献中李丽媛
Owner UNICORE COMM INC