A high-precision synchronization method and synchronization system for a clock synchronization system
A high-precision synchronization and clock synchronization technology, applied in the field of communication, can solve the problem that the precision synchronization error of the timing synchronization scheme cannot be controlled within 2ns, and achieve the effect of accurate decimal correction value and reducing influence.
Active Publication Date: 2021-12-07
BEIJING RINFON TECH CO LTD
View PDF9 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0024] In view of the above problems, the present invention is proposed to provide a high-precision synchronization method and synchronization system for a clock synchronization system that overcomes the above problems or at least partially solves the above problems, and can solve the problem that the fine synchronization error of the current timing synchronization scheme cannot be controlled within Problem within 2ns
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
[0085] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.
[0086] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more o...
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
The present invention relates to a high-precision synchronization method and synchronization system for a clock synchronization system. The method includes: a transmitter performs oversampling and low-pass filtering on a synchronization signal, and sends it to a receiver; the receiver performs normalization on the received synchronization signal Hand in down-conversion and low-pass filtering, and carry out carrier frequency offset estimation and frequency offset correction, rectangular filtering, sliding correlation with the local synchronization code, and obtain the correlation peak point of the synchronization signal; extract multiple adjacent points of the synchronization signal correlation peak point, Calculate the decimal correction value to obtain the optimal sampling point; perform smoothing filtering on the optimal sampling point to obtain the optimal sampling point after smoothing filtering, and determine whether the optimal sampling point exceeds the predetermined threshold of the optimal sampling point after smoothing filtering; If yes, the best sampling point is discarded; if not, the best sampling point after smoothing and filtering is used together with the local time counter to perform time parameter measurement and control, layer by layer control, to reduce the gap between the master station and the slave station in the clock synchronization system. fine synchronization error.
Description
technical field [0001] The invention relates to the field of communication technology, in particular to a high-precision synchronization method and a synchronization system for a clock synchronization system. Background technique [0002] The overall scheme design of clock synchronization system, the whole system is composed of 4 synchronization stations, 1 reference base station (ground station, hereinafter referred to as A), and 3 target base stations (rover station, hereinafter referred to as B1, B2, B3). The 4 stations generate the second pulse at the same time, and the master station generates a 100MHz clock signal. It is required that the punctuality accuracy of the master station and the slave station should not be less than 4ns when the distance between the master station and the slave station is not less than 10km. [0003] Overall Architecture of Clock Synchronization System figure 1 Shown: [0004] Clock synchronization technical solution: [0005] At present, ...
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): H04L7/00H04L7/04H04L27/00
CPCH04L7/007H04L7/042H04L27/0014H04L2027/0026
Inventor 熊军楼韬张凯郭晓峰
Owner BEIJING RINFON TECH CO LTD