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Magnetic measurement attitude high-precision resolving method applicable to high-speed rotating ammo

A technology of high-speed rotation and magnetic measurement, which is applied in the direction of ammunition testing, ammunition, weapon accessories, etc., and can solve the problem of low calculation accuracy

Active Publication Date: 2014-12-10
ZHONGBEI UNIV
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AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of low calculation accuracy of the existing conventional ammunition flight attitude extraction technology when extracting the flight attitude of high-speed rotating ammunition, the present invention provides a high-precision magnetic measurement attitude calculation method suitable for high-speed rotating ammunition

Method used

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Embodiment Construction

[0038] A high-precision magnetic attitude calculation method suitable for high-speed rotating ammunition, the method is realized by the following steps:

[0039] a. Use a three-axis magnetoresistive sensor, a three-axis accelerometer and corresponding electronic circuits to form a magnetic attitude measurement system, and select the navigation reference coordinate system and the carrier coordinate system of the magnetic measurement attitude system; then deduce the magnetic measurement according to the magnetic measurement theory Magnetic attitude system equations of the attitude system;

[0040] B. carry out fast search to the root of the system equations of magnetic measurement attitude system in the attitude interval of system equations of magnetic measurement attitude system by genetic algorithm, and obtain the attitude approximate solution of system equations of magnetic measurement attitude system;

[0041] c. Use the obtained attitude approximate solution as the iterative ...

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Abstract

The invention relates to the technology of high-speed rotating ammo flying attitude extraction, in particular to a magnetic measurement attitude high-precision resolving method applicable to high-speed rotating ammo, and solves the problem that the existing conventional ammo flying attitude extraction technology is low in resolving precision when extracting high-speed rotating ammo flying attitude. The magnetic measurement attitude high-precision resolving method applicable to high-speed rotating ammo includes the following steps: a, a three-axis magnetic resistance sensor, a three-axis accelerometer and a corresponding electronic line are adopted to form a magnetic measurement attitude system; b, the solution of a magnetic measurement attitude system equation set is fast searched through the genetic algorithm in an attitude interval of the magnetic measurement attitude system equation set, and an attitude approximate solution is obtained; and c, the obtained attitude approximate solution is adopted as an iterative initial value of the magnetic measurement attitude system equation set at the current resolving point, and a quasi-Newton iteration method is adopted to resolve the optimum attitude solution. The magnetic measurement attitude high-precision resolving method is applicable to high-speed rotating ammo flying attitude extraction.

Description

technical field [0001] The invention relates to a technology for extracting flight attitude of high-speed rotating ammunition, in particular to a high-precision calculation method for magnetic measurement attitude suitable for high-speed rotating ammunition. Background technique [0002] The guidance and dexterity transformation of conventional ammunition is the focus of the development of precision strike weapons at home and abroad. Limited by the harsh application environment of conventional ammunition such as high rotation and high overload, the high-precision extraction of the flight attitude of conventional ammunition has become a technical bottleneck for the guidance of conventional ammunition. As a method of extracting the flight attitude of conventional ammunition, the magnetic attitude calculation method is based on the geomagnetic vector as the measurement reference, and the magnetic sensor is properly deployed in the ammunition, and the flight attitude is calculat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F42B35/02
Inventor 刘俊龙达峰张晓明李杰石云波唐军白渚铨赵鑫炉王宇
Owner ZHONGBEI UNIV