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A Verification Method of Missile-borne Geomagnetic Attitude Measurement Processing Algorithm

A technology for processing algorithms and verification methods, applied in directions such as ground navigation

Active Publication Date: 2019-07-23
易文俊
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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

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  • A Verification Method of Missile-borne Geomagnetic Attitude Measurement Processing Algorithm
  • A Verification Method of Missile-borne Geomagnetic Attitude Measurement Processing Algorithm
  • A Verification Method of Missile-borne Geomagnetic Attitude Measurement Processing Algorithm

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Embodiment Construction

[0035] The technical solution of the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0036] A verification method for a missile-borne geomagnetic attitude measurement processing algorithm, comprising the following steps: designing a ground simulation turntable debugging device 100, which can carry a load of more than 20kg, and the device is composed of a sensor 101, a reference 102, a gear box 103, a servo motor 104, and a rotating shaft 105. The mechanical platform composed of bearing housing 106, crank handle 107, flat plate 108, base 109, support rod 110, elastic device 111, support seat 112, shift fork 113 and flange plate 114 can carry ≤15kg heavy parts and can be pitched and rolling motion, pitch angle movement range ±45°; roll angular velocity: 0-1800° / s; the shell control cabin with geomagnetic attitude measurement device is connected with flange 114 through bolts, driven by a servo mo...

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Abstract

The invention discloses a verification method of a shell-borne geomagnetic attitude measurement and processing algorithm, the method comprises the following steps: a ground simulation turntable debugging device is designed, and geomagnetic declination D and geomagnetic inclination I are calculated according to latitude and longitude of a given point; correct feasibility of a roll attitude information geomagnetic calculation processing algorithm can be verified by change of magnetic yaw angle Psi and magnetic pitch angle Phi of a shell, and measuring errors of a shell-borne geomagnetic combined attitude measurement device can be analyzed. According to the relationship of geomagnetic elements, longitude and latitude and height, Changzhi in Shanxi and four cities respectively in west, north, south and east in China are selected for verification of correctness of the roll attitude information geomagnetic calculation processing algorithm, wherein the four cities respectively in west, north, south and east in China are Urumqi in Xinjiang, Mohe in Harbin, Haikou in Hainan and Lianyungang in Jiangsu, and the measuring errors can be analyzed. In view of verification test results, the measuring errors of the shell-borne geomagnetic combined attitude measurement device are within-5 degrees to +5 degrees.

Description

technical field [0001] The invention belongs to the technical field of geomagnetic navigation applications, and in particular relates to a method for verifying 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...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/06G01C21/08
CPCG01C21/06G01C21/08
Inventor 易文俊李岩袁丹丹冯波
Owner 易文俊