CAJ | 학술논문

利用雷达对火箭弹一段飞行过程中的参数进行量测，对火箭弹落点进行了准确估计，实现了火箭弹的轨迹修正。采用具有自适应调节滤波增益矩阵的卡尔曼滤波器，结合质点弹道模型，建立了自适应卡尔曼滤波弹道模型，完成了对三坐标雷达探测的一段火箭弹飞行参数的野值处理与滤波，并对火箭弹落点进行外推。数值仿真结果表明，经自适应调节的卡尔曼滤波器滤波后，弹道量测信号中的野值与噪声被有效去除，且滤波方差可以在短时间内收敛。根据滤波时间与落点估计误差的关系，采用滤波时间为8-10 s 方案，可得到最佳的落点估计。
이용뢰체대화전탄일단비행과정중적삼수진행량측，대화전탄낙점진행료준학고계，실현료화전탄적궤적수정。채용구유자괄응조절려파증익구진적잡이만려파기，결합질점탄도모형，건립료자괄응잡이만려파탄도모형，완성료대삼좌표뢰체탐측적일단화전탄비행삼수적야치처리여려파，병대화전탄낙점진행외추。수치방진결과표명，경자괄응조절적잡이만려파기려파후，탄도량측신호중적야치여조성피유효거제，차려파방차가이재단시간내수렴。근거려파시간여낙점고계오차적관계，채용려파시간위8-10 s 방안，가득도최가적낙점고계。
In order to measure the parameters of flight rocket by using radar,rocket impact point was estimated accurately for rocket traj ectory correction.The Kalman filter with adaptive filter gain matrix was adopted.According to the particle traj ectory model,the adaptive Kalman filter traj ectory model was constructed for removing and filtering the outliers of the parameters during a section of flight detected by three-dimensional data radar and the rocket impact point was extrapolated.The results of numerical simulation show that the outliers and noise in traj ectory measurement signal can be removed effectively by using the adaptive Kalman filter and the filter variance can converge in a short period of time.Based on the relation of filtering time and impact point estimation error,choosing the filtering time of 8-10 s can get the minimum estimation error of impact point.