Method and device for enhancing reliability of Beidou time sequence analysis and storage medium

A time sequence analysis and reliability technology, applied in satellite radio beacon positioning systems, measurement devices, instruments, etc., to solve problems such as gross error interference, high noise level of Beidou displacement sequences, and low displacement sequence accuracy, to enhance reliability. Effect

Pending Publication Date: 2021-06-08
湖南北斗微芯产业发展有限公司
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to poor observation quality, significant multipath effects, gross error interference, etc., the noise level of the Beidou displacement sequence is relatively high, making the displacement sequence accuracy low

Method used

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  • Method and device for enhancing reliability of Beidou time sequence analysis and storage medium
  • Method and device for enhancing reliability of Beidou time sequence analysis and storage medium
  • Method and device for enhancing reliability of Beidou time sequence analysis and storage medium

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no. 1 example ；

[0024] refer to figure 1 , an embodiment of the present invention provides a method for enhancing the reliability of Beidou timing analysis, comprising the following steps:

[0025] Step S100, acquiring the Beidou displacement sequence to be processed.

[0026] Step S200, performing multi-layer empirical mode decomposition on the Beidou displacement sequence, and estimating the variance of the eigensignal components obtained from the decomposition.

[0027] Step S300 , based on the estimated variance of the eigensignal component, perform empirical mode decomposition to denoise the Beidou displacement sequence subjected to multi-layer empirical mode decomposition.

[0028] Step S400, reversely arrange the first half of the elements of the Beidou displacement sequence after the empirical model decomposition and noise reduction to generate the first sequence, and arrange the second half of the elements in the forward order to generate the second sequence, and obtain the first se...

no. 2 example ；

[0068] refer to image 3 , an embodiment of the present invention provides a device for enhancing the reliability of Beidou timing analysis. The device for enhancing the reliability of Beidou timing analysis can be any type of intelligent terminal, such as a mobile phone, a tablet computer, a personal computer, and the like.

[0069] Specifically, the device for enhancing the reliability of Beidou timing analysis includes: one or more control processors and memory. The control processor and memory can be connected by bus or other means.

[0070] As a non-transitory computer-readable storage medium, the memory can be used to store non-transitory software programs, non-transitory computer-executable programs and modules, such as the device corresponding to the device for enhancing the reliability of Beidou timing analysis in the embodiment of the present invention Program instructions / modules. The control processor executes the method for enhancing the reliability of Beidou ti...

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Abstract

The invention discloses a method and device for enhancing reliability of Beidou time sequence analysis and a storage medium, aiming at the defects in the prior art, noise reduction processing is carried out on a Beidou displacement sequence by using empirical mode decomposition and threshold denoising methods, empirical mode decomposition and threshold denoising essentially play a role in smoothing data, the fluctuation of the original Beidou displacement sequence is large, interference is caused to time sequence analysis, the noise level of the smoothed displacement sequence is reduced, noise interference is weakened, the precision of subsequent estimation on related formulas is higher, and the variation trend is more obvious. And then, the de-noised Beidou displacement sequence is processed, two groups of new sequences are generated based on the first half element and the second half element, stability index analysis is calculated by using an equivalent deviation value between the two groups of new sequences, so that an inaccurate phenomenon caused by large error interference such as gross error to time sequence analysis can be reduced, and the reliability of time sequence analysis is improved.

Description

technical field [0001] The invention relates to the technical field of Beidou time series analysis, in particular to a method, device and storage medium for enhancing the reliability of Beidou time series analysis. Background technique [0002] The Beidou satellite system is a satellite system independently constructed and operated by China focusing on the needs of national security and economic and social development. It is an important national space infrastructure that provides global users with all-weather, all-time, high-precision positioning and timing services. On June 23, 2020, Beidou completed the global networking and entered the era of comprehensive application. As an autonomous, safe and controllable satellite system, Beidou has many advantages in terms of security, availability, and continuity compared to GPS. Based on the Beidou displacement sequence obtained by the continuous measurement and calculation of the Beidou, the time series analysis of the displacem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/37G06F17/18
CPCG01S19/37G06F17/18
Inventor 甘雨杨世忠童绳武
Owner 湖南北斗微芯产业发展有限公司
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