旋转捷联式图像制导技术及应用

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中图分类号：TP391.4 文献标志码：A DOI：10.12305/j.issn.1001-506X.2025.03.29

Rotating strapdown image guidance technology and application

JIANG Bin’an，GUOJiahui＊，LING Chong，QIANLizhi （High Ouerloaded Ammunition Guidance Control and Information Perception Laboratory， PLAArmy AcademyofArtillery and AirDefense，Hefei23oo31，China）

Abstract：The strapdown image seeker has the advantages of compact structure，high overload resistance， and low cost，meeting the requirements of miniaturization，overload resistance，and low costof precision guided projectile.However，the oscilation and precession of the projectile caused by spin during projectile's flight increasethe dificultyofdecoupling thelineof sight angleand theatitude angleof theprojectile，which has long constrained the application of strapdown seekers in guiding projectiles.To regard this，a method for extracting the line of sight angle of a rotating strapdown image guided projectile is proposed，anda rotating strapdown image terminal guidance scheme with field of view constraints is designed.Bysolving the fullangleof attack equation，virtual velocityvectorsare extracted within the fieldof viewof the seeker，andaclosed-loop guidance loop is established.Byusing intermitent control，anonlinearsliding surface with fieldof view constraints and a tangent-type obstacleLyapunov functionare constructed toachieve stable locking within the target fieldof view. An adaptive extended state observer is introduced to estimate and compensate for target motion，reducing the phenomenon of body shaking.The proposed method isvalidated through numerical simulation and flight experiments，and the hit accuracy meets the expected requirements to achieve precise guidance control of rotating strapdown image guided projectile.

Keywords：image guidance；rotating strapdown；attitude isolation；field of view angle constraint；obstacle Lyapunov function

0 引言

随着战争理念的进步与科学技术的发展，炮兵对精确打击的需求日益突显[1-3]。（剩余13024字）