Suboptimal guidance method with terminal angle constraint

A sub-optimal technology with end angle constraints, applied in the field of guidance, can solve problems such as inaccurate measurement
CN103512426AInactive Publication Date: 2014-01-15BEIJING INSTITUTE OF TECHNOLOGYGY
3 Cites 24 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
BEIJING INSTITUTE OF TECHNOLOGYGY
Publication Date
2014-01-15
Estimated Expiration
Not applicable Β· inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a suboptimal guidance method with terminal angle constraint, and belongs to the field of guidance technologies. The suboptimal guidance method has six advantages that influence, on the guidance process, of aerodynamic characteristics (aerodynamic resistance and the gravity) of an air vehicle is considered, so that the method is closer to a practical situation; people only need to know initial conditions and tail end requirements of a flight and real-time state information of the air vehicle to achieve terminal guidance, and therefore the amount of needed information is small; an obtainable trajectory inclination angle terminal value is wide in range; an obtained controlled quantity is smooth in variation and is easy for an attitude control system to track; a weight matrix Q is the function based on a residual height y-to-go (or a residual firing range x-to-go), and the quantities are easy to measure in a project; not only can an object be hit with an expected terminal angle, but also a constant value speed object can be hit with an expected attitude.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a suboptimal guidance method with end angle constraints, which belongs to the technical field of guidance. Background technique

[0002] In the field of modern guidance, since the terminal collision angle is closely related to the actual strong damage effect, for the terminal guidance section, not only the minimum miss amount at the terminal point is required, but also the desired terminal angle constraint must be satisfied.

[0003] The concept of guidance with end angle constraints was proposed by Kim and Grider in 1973. Since then, a large number of researchers at home and abroad have conducted in-depth research in this field. Due to its simple form and easy engineering application, proportional guidance is widely used in the design of guidance laws with end angle constraints. Kim et al. proposed a biased proportional guidance method, which obtained the desired end angle by adding a time-varying term to the proportional gu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More