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

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...

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