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Satellite positioning trajectory drift correction method based on trajectory smoothing algorithm

A satellite positioning and trajectory smoothing technology, applied in the field of data analysis, can solve problems such as large distortion rate, and achieve the effect of improving accuracy and data collection accuracy

Active Publication Date: 2019-06-21
ANHUI ZHONGKE INTELLIGENT PERCEPTION BIG DATA IND TECH RES INST CO LTD
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Problems solved by technology

However, it only achieves some denoising with larger offset values, and the distortion rate is larger.

Method used

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  • Satellite positioning trajectory drift correction method based on trajectory smoothing algorithm
  • Satellite positioning trajectory drift correction method based on trajectory smoothing algorithm
  • Satellite positioning trajectory drift correction method based on trajectory smoothing algorithm

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Embodiment Construction

[0024] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0025] Such as Figure 1 to Figure 3 As shown, a satellite positioning trajectory drift correction method based on trajectory smoothing algorithm includes the following steps:

[0026] Step 1. Set the threshold 1T, threshold 1T: Take uploading one satellite positioning sampling point per second as an example, set the time interval between the satellite positioning sampling points for 10s, and use P1, P2, P3, P4, P5, P6 in chronological order , P7, P8, P9, P10 mark each point;

[0027] Step 2, set the threshold value 2 m, take the speed of 15 km / h as the reference value of the uploaded satellite positioning equipment, set the threshold value 2: m=4 meters;

[0028] Step 3. Satellite positioning sampling point drift denoising

[0029] Connect the...

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Abstract

The invention discloses a satellite positioning trajectory drift correction method based on a trajectory smoothing algorithm, and relates to the technical field of data analysis. The method comprisesthe steps of setting the first threshold value, setting the second threshold value and denoising and thinning processing, etc. Aiming at the requirement of data analysis and calculation by using the satellite positioning data, the method solves the problem of sampling point position drift caused by the satellite positioning accuracy so as to facilitate optimization of subsequent processing. The method can realize the thinning and denoising of the satellite positioning data point and effectively realize offset correction processing for the satellite positioning sampling points of high offset desired positions by aiming at the satellite positioning continuous sampling points generated by the continuously moving objects. Meanwhile, a large number of redundant data can be further removed so asto improve the usability of data analysis of the satellite positioning sampling points and enhance the efficiency of related calculation involving the satellite positioning sampling points.

Description

technical field [0001] The invention relates to the technical field of data analysis, in particular to a track smoothing method for thinning and denoising satellite positioning track points. Background technique [0002] With the rapid development of the depth and breadth of the use of satellite positioning technology, it has become a common demand for satellite positioning data to analyze, calculate, and obtain more information and data based on satellite positioning data. However, in some demand scenarios, such as the calculation of the area of ​​agricultural machinery through satellite positioning data, the lack of accuracy of ordinary satellite positioning data and data drift will lead to an increase in the complexity of the calculation algorithm and a decrease in calculation efficiency. Therefore, the original satellite positioning The data undergoes certain processing. In the collection, visualization and statistical function design of geographic coordinate data point...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/37
Inventor 骆庭宝吴晓伟张炜
Owner ANHUI ZHONGKE INTELLIGENT PERCEPTION BIG DATA IND TECH RES INST CO LTD
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