Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Guidance information extraction method of strapdown homing seeker

An extraction method, a technology for guidance information, applied in the directions of navigation calculation tools, weapon accessories, projectiles, etc.

Inactive Publication Date: 2015-11-04
BEIJING AEROSPACE INST OF THE LONG MARCH VEHICLE +1
View PDF3 Cites 22 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the research conclusion has certain deficiencies in engineering application

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
  • Guidance information extraction method of strapdown homing seeker
  • Guidance information extraction method of strapdown homing seeker
  • Guidance information extraction method of strapdown homing seeker

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The method of the present invention first applies the method of differential + filter network to calculate the derivative of the volume line of sight angle according to the volume line of sight angle information measured by the seeker, and then introduces the carrier attitude angular velocity information measured by the gyro to carry out the relative motion of the carrier attitude and the projectile (aircraft and target) The decoupling of the mathematical relationship is finally combined with the derivative of the volume line-of-sight angle to calculate the inertial line-of-sight angular velocity.

[0024] The invention provides a method for extracting guidance information of a strapdown homing seeker, comprising the following steps:

[0025] (1) Get the carrier coordinate system o-x b the y b z b The volume line of sight azimuth of the lower seeker q bh and the elevation angle q of the stereo line of sight bv ;Such as figure 1 As shown, the volume line-of-sight az...

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 provides a guidance information extraction method of a strapdown homing seeker, which comprises the following steps that (1) a body line-of-sight azimuth angle and a body line-of-sight altitude angle of the seeker in an airborne coordinate system o-xbybzb are acquired; (2) measurement information of the strapdown homing seeker is processed; (3) a missile-target relative distance vector in the airborne coordinate system and a component of a movement velocity of a target relative to an aircraft in the airborne coordinate system are calculated; (4) an inertia line-of-sight azimuth angular rate of the aircraft at the current hour and an inertia line-of-sight altitude angle rate of the aircraft at the current hour in the airborne coordinate system are calculated; and (5) results obtained in Step (4) serve as guidance information and are sent to the strapdown homing seeker. To overcome the defects in the prior art, body line-of-sight angular measurement information and gyro angular velocity measurement information are used directly to extract an inertia line-of-sight angular velocity, so that the guidance precision is improved, the design difficulty of a guidance system is reduced, and the guidance information extraction method can be widely applied to various strapdown homing guidance weapons.

Description

technical field [0001] The invention relates to a guidance information extraction method, in particular to a guidance information extraction method of a strapdown homing seeker, and belongs to the technical field of guidance control system design. Background technique [0002] Modern local warfare and space attack and defense put forward higher requirements for the development of precision guided weapons. In addition to requiring high hit accuracy, it is also required to have the characteristics of light weight, small size, low cost, and high reliability. The traditional frame-type seeker has a large total field of view and can directly extract the line-of-sight angular rate information required by the guidance system. However, due to the existence of the frame, the structure is complicated, the weight increases, and the reliability of the system is reduced. , not suitable for ambidextrous small guided weapons. In the guided weapon, the strapdown seeker is directly fixed on...

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
IPC IPC(8): F42B15/01G01C21/20F41G9/00F41G11/00
Inventor 田源黄朝东方海红吴昭辉赵洋李涛鞠晓燕孟刚刘佳琪刘志轩苏晓东闫新峰秦雪孙月光赵春明孙忠旭
Owner BEIJING AEROSPACE INST OF THE LONG MARCH VEHICLE
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com