Method for Determining Rolling Attitude of Launch Vehicle

Abstract

The invention provides a method for determining the rolling attitude of a carrier rocket, belonging to the field of aerospace measurement and control. Three high-speed movie cameras are adopted for the method to complete the measurement task of measuring the vertical take-off section of a rocket in a tracking way. Under the condition that a series of red small attribute blocks cannot be seen clearly in the image obtained by the tracking measurement of three observation stations, the imaging markers which can be utilized on the rocket are fully used; the rolling attitude of the carrier rocket can be determined by a rectangle. The reality check proves that the research of the computing method not only is capable of accurately determining the rolling attitude of the carrier rocket, but also provides important support for improving the structure of a rocket body in the model part, perfecting the performances of the measurement system and improving the safety of the launching process.

Description

[0001] Field [0002] The patent of the invention belongs to the field of aerospace measurement and control, and relates to a method for determining the roll attitude of a launch vehicle based on the tracking measurement of a special mark on the launch vehicle body. Background technique [0003] The rocket attitude measurement calculation is mainly to provide important technical support for the model department to analyze the stability of the three-axis platform in the inertial guidance system of the rocket during vertical takeoff, and is also used to evaluate the vertical takeoff section of the rocket (that is, the rocket is connected from the takeoff contact to flight safety and flight performance for a period of time until flying out of the pylon. Through the analysis and processing of the attitude of the rocket body, the flight situation of the type launch vehicle can be found and analyzed, and support can be provided for improving the structure of the rocket body, improvi...

AI Technical Summary

Problems solved by technology

However, in actual combat missions, due to factors such as atmospheric disturbances, small angles between instrument pointing and the sun, and reduced contrast between the target and the background, the edges of a series of small red markers on the rocket body used to measure the rolling attitude The line becomes blurred, which seriously affects the extraction of the measurement data of the red mark, and it is impossible to calculate and determine the rolling attitude of the arrow body

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