高机动目标的改进强跟踪CKF自适应IMM算法  

Improved strong tracking CKF adaptive IMM algorithm for high maneuvering targets

作　　者：成怡[1] 刘铭阳 徐国伟[1,2] CHENG Yi;LIU Mingyang;XU Guowei(School of Control Science and Engineering,Tiangong University,Tianjin 300387,China;School of Mechanical Engineering,Tiangong University,Tianjin 300387,China)

机构地区：[1]天津工业大学,控制科学与工程学院,天津300387 [2]天津工业大学,机械工程学院,天津300387

出　　处：《中国惯性技术学报》2024年第7期715-723,共9页Journal of Chinese Inertial Technology

基　　金：国家自然科学基金(61973234)。

摘　　要：为提升高机动目标跟踪精度,提出了一种改进的强跟踪CKF自适应交互多模型跟踪算法。在IMM算法运动模型集中引入CS-Jerk模型,增强对高机动目标的适应能力,采用奇异值分解(SVD)算法解决模型集中因模型扩维而导致CKF算法无法Cholesky分解的问题;提出了一种改进的强跟踪CKF算法,降低强跟踪CKF算法的计算量;利用模型的后验信息对IMM算法模型转移概率进行自适应调整,提高跟踪精度。仿真结果表明,基于所提算法目标的位置均方根误差均值和速度均方根误差均值较IMM-CKF算法分别降低了22.50%和16.58%,有效提高了目标跟踪精度。Aiming to improve the tracking performance of high maneuvering targets,an improved strong tracking CKF adaptive interactive multi model tracking algorithm is proposed.The CS-Jerk model is introduced in the model set of IMM to enhance its adaptability to high maneuvering targets,the singular value decomposition(SVD)algorithm is adopted to solve the problem of CKF algorithm being unable to Cholesky decompose due to model dimension expansion.An improved strong tracking CKF algorithm is proposed to reduce the computational complexity of strong tracking CKF algorithm,the model transition probability of IMM is adjusted adaptively by using the posterior information of the model to improve the tracking accuracy.The simulation results show that the mean RMSE of position and the mean RMSE of velocity based on the proposed algorithm are reduced by 22.50%and 16.58%respectively compared to the IMM-CKF algorithm,effectively improving the accuracy of target tracking.

关 键 词：高机动目标 目标跟踪 自适应交互多模型 强跟踪CKF SVD分解 

分 类 号：TN953[电子电信—信号与信息处理]