Unlock instant, AI-driven research and patent intelligence for your innovation.

Shell-borne geomagnetic attitude measurement and processing algorithm

A technology for processing algorithm and magnetic attitude, applied in the field of missile-borne geomagnetic attitude measurement and processing algorithm

Active Publication Date: 2017-02-15
易文俊
View PDF5 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The aerial attitude measurement of shells, especially the attitude measurement under high overload is still a major technical problem in China, and many methods are still under exploration

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Shell-borne geomagnetic attitude measurement and processing algorithm
  • Shell-borne geomagnetic attitude measurement and processing algorithm
  • Shell-borne geomagnetic attitude measurement and processing algorithm

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] The technical solution of the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0037] A missile-borne geomagnetic attitude measurement processing algorithm, comprising the following steps: the missile-borne dual-axis geomagnetic sensor is fixed on the missile body, perpendicular to the direction of the missile axis, sensitive to the change of reluctance in the Y and Z directions, and the specific installation is urgently related to the coordinates of the missile body Such as figure 1 shown.

[0038] Taking the Beidongtian navigation coordinate system as a reference, x′ b for x b For the projection on the NOE plane, γ is the roll attitude angle of the projectile, β is the yaw angle (shooting direction), and θ is the pitch angle (shooting angle). According to the coordinate transformation, the geomagnetic output in the Y and Z directions of the projectile is obtained:

[0039]

[0...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a shell-borne geomagnetic attitude measurement and processing algorithm which comprises the following steps: a shell-borne biaxial geomagnetic sensor is fixed on a shell body, is vertical to the direction of a shell shaft, and is sensitive to Y and Z direction magnetic reluctance variation, a north-east-up navigation coordinate system is used as a reference, xb' is a projection of xb on a NOE plane, gamma is shell body roll attitude angle, beta is yaw angle, and theta is pitch angle. Shell body Y and Z direction geomagnetic outputs can be obtained according to coordinate transformation; and according to a value range of magnetic yaw angle Psi, a calculation method of the shell body roll attitude angle gamma can be analyzed. A correlation curve of benchmark theoretical calculation values and firing angle change detection values is magnetically detected, the theoretical calculation values are basically consistent with actual measured values in view of a plurality of test results, and the largest deviation range is-3.2 degrees to + 2.97 degrees.

Description

technical field [0001] The invention belongs to the technical field of geomagnetic navigation applications, and in particular relates to a missile-borne geomagnetic attitude measurement processing algorithm. Background technique [0002] The geomagnetic field is the basic physical field of the earth system and an inherent resource of the earth. It provides a natural reference system for aviation, spaceflight, and navigation, and can be applied to the positioning, orientation, and attitude control of spacecraft or ships. The magnetic navigation technology using the spatial distribution of the earth's magnetic field is simple, efficient, reliable, and anti-interference. It has always been an indispensable basic navigation and positioning method for developed countries in the world. For example, Boeing aircraft with a high degree of automation are equipped with magnetic navigation and positioning systems. At present, geomagnetic technology has been widely used in many fields su...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/08G01C21/06
CPCG01C21/06G01C21/08
Inventor 易文俊袁丹丹冯波李岩
Owner 易文俊