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A Dynamic Coarse and Fine Control Algorithm for Eliminating Outliers of Navigation Information

A technology of navigation information and outliers, applied in the field of navigation, to achieve the effect of solving the problem of outlier interference

Active Publication Date: 2018-03-09
ENG UNIV OF THE CHINESE PEOPLES ARMED POLICE FORCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0027] For the assignment of processed innovations, the average value of the previous data innovations is mostly used, but the more data used is not the better, because the receiving system needs to store a large amount of data for use

Method used

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  • A Dynamic Coarse and Fine Control Algorithm for Eliminating Outliers of Navigation Information
  • A Dynamic Coarse and Fine Control Algorithm for Eliminating Outliers of Navigation Information
  • A Dynamic Coarse and Fine Control Algorithm for Eliminating Outliers of Navigation Information

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Embodiment Construction

[0070] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0071] refer to figure 1 ,Such as figure 1 As shown, a navigation information dynamic rough and fine control outlier algorithm includes the following steps:

[0072] Dynamic information rough and fine control prediction method based on gray theory;

[0073] Dynamic data outlier processing algorithm.

[0074] Wherein the dynamic information rough and fine control prediction method based on gray theory includes the following steps:

[0075] Let the original data column X (0) (k)=(x (0) (1),x (0) (2)...x (0) (k)), k≥0, and k=1, 2, 3...n, X (0) An accumulation of generates the sequence X (1) =(x (1) (1),x (1) (2), ... x (1) (n)), X (1) The immediate mean value of generates the sequence Z (1) =(z (1) (2), z (1) (3),... z (1) (n)), where

[0076] k=2, 3, ... n;

[0077] like is the parameter column, then the gray differential equation...

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Abstract

The invention discloses a dynamic navigation information coarse-fine control and elimination-of-burst-noise algorithm which comprises a dynamic information coarse-fine control forecast method based on a grey theory, and a dynamic data elimination-of-burst-noise algorithm. According to the dynamic navigation information coarse-fine control and elimination-of-burst-noise algorithm provided by the invention, the accuracy and the quickness can be balanced, and the problem of burst-noise interference to dynamic information is solved; furthermore, a processed result slightly affects original information.

Description

technical field [0001] The invention belongs to the field of navigation, and in particular relates to an algorithm for removing outliers in dynamic rough and fine control of navigation information. Background technique [0002] Engineering practice shows that even for high-precision measuring equipment, due to the comprehensive influence or effect of various accidental factors, the measurement data set often contains 1-2% or even 10-20% of the data that seriously deviates from the target true value. Engineering data processing The field calls this part of abnormal data outliers. [0003] Outliers in navigation information will not only cause errors in positioning information, but also have a greater impact on the application level of positioning information. It is not an exaggeration to say that "a slight difference is a thousand miles away". Since the outlier will have a great impact on the navigation system, the influence of the outlier interference must be eliminated bef...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/20
CPCG01C21/20
Inventor 黄莹
Owner ENG UNIV OF THE CHINESE PEOPLES ARMED POLICE FORCE
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