Processing Method of Rolling Information of High-speed Rotating Guided Projectile

Abstract

The invention belongs to the technical field of attitude measurement of guided projectiles, and relates to a processing method for roll information of high-speed rotating guided projectiles. Its purpose is to solve the interference of pitch to measurement accuracy in the processing of ground roll angle. The step that realizes the roll angle processing method of the de-pitching interference of the present invention is: step 1, establish the relation of quasi-projectile coordinate system, earth coordinate system and projectile coordinate system and three coordinate systems thereof; Step 2, establish the relation of roll angle The relationship between the ground zero position and the binding parameters; step 3, the special pitch angle of 90° and -90° affects the calculation of the roll angle to the ground zero position; step 4, the ground zero position calibration and the anti-pitch interference Ground roll angle handling. The advantage of the method for processing the roll information of the high-speed rotating guided shell of the present invention is that it solves the roll angle processing error caused by the change of the pitch angle of the projectile in the roll signal processing of the attitude measuring instrument of the guided shell, and saves the measurement of the pitch angle instrument Equipment, information processing is simple.

Description

technical field [0001] The invention belongs to the technical field of attitude measurement of guided projectiles, and relates to a method for processing roll information of high-speed rotating guided projectiles. Background technique [0002] For the attitude measurement of the high-speed rotating guided projectile, especially the measurement of the ground roll angle, some people use geomagnetic technology to complete it. For example, the Chinese patent document "Rolling Body Pointing Device" (application number 200710081186.8). This patent relates to a projectile roll pointing instrument for measuring the attitude of a guided projectile in rolling flight. It uses geomagnetism to complete the measurement of the roll angle. In the angle processing method, the pitch angle is involved in the calculation, that is, the pitch angle must be obtained first during the flight of the guided projectile, and then the roll angle can be processed by the processing method given in this pa...

AI Technical Summary

Problems solved by technology

During the flight of guided projectiles, the pitch angle changes greatly, and can vary from 90° to -90° at most, so the pitch angle must be measured by other instruments, and then participate in the processing of the roll angle, so that the measurement accuracy of the pitch angle will be improved. Affect the roll angle accuracy, resulting in relatively large measurement error

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