# Quick integrated navigation method based on Carlson filtering algorithm for reducing dimensionality

## A filtering algorithm and integrated navigation technology, applied in the field of satellite navigation and inertial navigation, can solve the problems of easy divergence of data fusion filters, large amount of data, and difficult hardware implementation

Inactive Publication Date: 2012-12-19

NORTHWESTERN POLYTECHNICAL UNIV

4 Cites 9 Cited by

## AI-Extracted Technical Summary

### Problems solved by technology

View more

### Method used

View more

## Abstract

The invention provides a quick integrated navigation method based on a Carlson filtering algorithm for reducing the dimensionality. The quick integrated navigation method mainly comprises two parts of data fusion and position compensation, wherein the data integration part adopts a data integration algorithm based on the Carlson filtering algorithm for reducing the dimensionality, and the modeling for the information of speed and attitude of an INS (Information Network System) module and the error information of an INS device is realized through the data fusion algorithm; and according to the position compensation part, the position information calculated by the INS module can be corrected by utilizing the position information calculated by pseudo-range information which is observed by a satellite receiver. According to the quick integrated navigation method disclosed by the invention, the dimensionality of a system is reduced from 15 to 12 according to the modification of a state equation and a measurement equation and on the basis that the accurate correction of an INS navigation module is met, the operating data quantity of the system is reduced, a Carlson filter is adopted as a data fusion filter at the same time, the positive definiteness of a matrix is ensured by carrying out upper triangular decomposition on a mean square error matrix and the evaluation of the mean square error matrix in the Carlson filter, and the diffusion of the filter can be effectively avoided.

Application Domain

Satellite radio beaconing

Technology Topic

SatelliteTriangular decomposition +9

## Image

## Examples

- Experimental program(1)

### Example Embodiment

## PUM

## Description & Claims & Application Information

We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.