Modeling method for initial disturbance radar echo signal of angular motion of spinning empennage projectile

A radar echo and modeling method technology, applied in radio wave measurement systems, instruments, design optimization/simulation, etc., can solve problems such as simulation and modeling of radar echo signals that are not involved, and achieve the effect of perfecting the modeling system

Active Publication Date: 2021-08-06
中国人民解放军63861部队
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Problems solved by technology

[0006] However, none of the above studies involved the radar echo signal simulation and modeling of the initial disturbance of the projectile in the straight section of the ballistic trajectory

Method used

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  • Modeling method for initial disturbance radar echo signal of angular motion of spinning empennage projectile
  • Modeling method for initial disturbance radar echo signal of angular motion of spinning empennage projectile
  • Modeling method for initial disturbance radar echo signal of angular motion of spinning empennage projectile

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Embodiment Construction

[0072]The present invention will be further described below in conjunction with accompanying drawing and example: a kind of modeling method of spin-tail projectile angular motion initial disturbance radar echo signal, with radar relevant parameter, spin-tail projectile in the translational parameter and micro The dynamic parameters and the scattering characteristic parameters of the projectile are used as the main input. After the relationship between the radar and the target is determined, the change of the angular motion between the projectile axis and the velocity vector during the space movement of the projectile is converted into radar measurement information for this micro-motion. Based on the projective transformation, the micro-Doppler signal model of the spin tail projectile angular motion to the radar is established. The specific implementation steps are as follows:

[0073] Step 1: Establish the dynamic equation of the spin-tail projectile;

[0074] According to th...

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Abstract

The invention relates to a modeling method for an initial disturbance radar echo signal of angular motion of a spinning empennage projectile. The modeling method is characterized by comprising the following specific steps: establishing a kinetic equation of the spinning empennage projectile; solving the homogeneous differential equation of the re-attack angle of the projectile; determining a projectile angular motion mode of the spinning empennage; determining a related coordinate system definition; calculating the distance from a projectile body scattering point to the radar; echoing Doppler signals by radar. According to the method, the change mechanism of angular motion between a projectile axis and a velocity vector in the space motion process of the spinning empennage projectile is analyzed and then converted into projection transformation of radar measurement information on the motion, and a theoretical basis is provided for identifying target motion characteristics, aerodynamic characteristics and structural characteristics through the radar measurement information.

Description

technical field [0001] The invention relates to a modeling method for radar echo signal of initial disturbance radar echo signal of spin tail projectile angular motion, which is a kind of micro-multiple analysis of radar echo produced by spin tail projectile angular motion in ballistics, electromagnetism, weapon test, etc. The modeling and simulation technology of the Puller signal belongs to the field of radar echo signal modeling and simulation. Background technique [0002] The flight motion of the projectile in the air includes the motion of the center of mass and the rotation around the center. Based on this, the core of the projectile motion model of the spin tail is the kinematics and dynamics equations of the motion of the center of mass and the rotation around the center of the projectile. The rotation of the projectile around the center determines the flight stability of the projectile. There are two main methods to realize the flight stability of the projectile: r...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G01S7/41G06F119/14
CPCG06F30/20G01S7/415G06F2119/14Y02T90/00
Inventor 宫志华段鹏伟陈春江冷雪冰田珂田家磊
Owner 中国人民解放军63861部队
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