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Dynamic navigation information coarse-fine control and elimination-of-burst-noise algorithm

A navigation information, rough and fine technology, applied in the field of navigation

Active Publication Date: 2014-02-26
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

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  • Dynamic navigation information coarse-fine control and elimination-of-burst-noise algorithm

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Embodiment Construction

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

[0071] reference figure 1 ,Such as figure 1 As shown, an outlier removal algorithm for navigation information dynamic coarse and fine control includes the following steps:

[0072] Dynamic information coarse and precise control forecasting method based on grey theory;

[0073] Dynamic data de-outlier processing algorithm.

[0074] The method for coarse and precise control of dynamic information based on gray theory includes the following steps:

[0075] Let the original data column X (0) =(x (0) (1), x (0) (2),...x (0) (n)), (x (0) (k≥0), k=1, 2,..., n), X (0) One time accumulation (1-AGO) generates sequence X (1) =(x (1) (1), x (1) (2),...x (1) (n)), X (1) Z (1) =(z (1) (2), z (1) (3),...z (1) (n)), where Z ( 1 ) ( k ) = 1 2 [ x ( 1 ) ( k ) + x ( 1 ) ( k - 1 ) ] , ( k = 2,3 , . ...

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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 outlier removal algorithm for dynamic coarse and fine control of navigation information. Background technique [0002] Engineering practice shows that even with high-precision measurement equipment, due to the comprehensive influence or action of a variety of accidental factors, the measurement data set often contains 1 to 2% or even 10 to 20% of the data that seriously deviates from the target true value. Engineering data processing The field calls this part of abnormal data an outlier. [0003] The outliers in the navigation information will not only cause errors in the positioning information, but also have a greater impact on the application level of the positioning information. It is not an exaggeration to say that "the smallest difference is a thousand miles away." Because the outliers will have a great impact on the navigation system, it is necessary to eliminate the inf...

Claims

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Application Information

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Patent Type & Authority Applications(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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