Level flight transition section guidance control method

A control method and transition section technology, applied in the direction of offensive equipment, projectiles, self-propelled bombs, etc., can solve the problems of long convergence time of guidance law, limited anti-interference ability of stable control loop, and difficulty in achieving ideal effects, etc., and achieve stable Good performance and strong anti-interference ability

Active Publication Date: 2020-07-03
湖北航天飞行器研究所
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the anti-interference ability of the stability control loop itself is relatively limited, and the convergence time of the guidance law is relatively long, so it is difficult to achieve the desired effect.

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Level flight transition section guidance control method
  • Level flight transition section guidance control method
  • Level flight transition section guidance control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0047] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0048] A guidance and control method for a level flight transition, comprising the following steps:

[0049] S1: Online trajectory planning, after meeting the conditions for entering the transition section, use the current azimuth acceleration a H , Celestial velocity V H and altitude H as the initial state, with predetermined level flight altitude H T , the end skyward velocity V of the transition section H (t end ...

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

PUM

No PUM Login to view more

Abstract

The invention discloses a level flight transition section guidance control method. The method includes the following steps of S1, online planning a trajectory, wherein the change trajectory of a missile is planned according to a certain rule after conditions for entering a transition section are met with the current skyward acceleration aH, skyward velocity VH and altitude H as initial states andthe preset level flight altitude HT and the tail end skyward velocity VH(tend) and the acceleration aH(tend) of the transition section as constraints; S2, pre-correcting guidance, wherein required overloads are calculated according to the difference value of the current skyward velocity VH and altitude H of a loitering munition and the preset level flight altitude HT, the missile is controlled togenerate corresponding overloads, and it is ensured that the missile stably enters the transition section; and S3, guiding the transition section, wherein after conditions for entering the transitionsection are met, a standard altitude and skyward speed trajectory generation instruction of the transition section is generated according to the planned trajectory, and trajectory tracking is realizedthrough altitude and speed control until the missile shifts to the level flight section. By means of the method, by online planning an altitude channel of the missile and tracking the missile in realtime, it is ensured that the loitering munition stably shifts from the transition section to the level flight section.

Description

technical field [0001] The invention relates to the field of missile guidance and control, in particular to a guidance and control method for a level flight transition section. Background technique [0002] Loitering missiles are the product of the combination of advanced missile technology and UAV technology. They can quickly reach the target area and perform single or multiple tasks such as patrol flight, reconnaissance and surveillance, damage assessment, air wireless relay and attacking targets. A smart ammunition with distinctive features that can meet the needs of future information-based operations. After the cruise missile is launched with rocket boost, it needs to go through a period of ballistic flight, and then turn to a predetermined altitude to enter the cruising state. The engine is turned on at the right time and flies to the target area. During the transition from ballistic flight to cruising flight, due to the existence of various deviations, it is impossib...

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

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): F42B15/01
CPCF42B15/01
Inventor 张超罗珊唐志明方姗彭江勇许林黄享纲
Owner 湖北航天飞行器研究所
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products