CAJ | 학술논문

针对预警卫星对弹道导弹轨迹重建算法复杂、高精度与实时性难以兼顾的问题，利用立体视觉匹配中的目标点外极线约束及时间约束条件，提出了一种基于地球静止轨道(GEO)双预警卫星观测的弹道导弹飞行轨迹重建算法，并进行了仿真实验。实验结果表明，该算法对弹道导弹主动段重建轨迹与真实轨迹接近，在相机检测误差较小情况下重建点距离真实点误差小于2 km，可满足后续对弹道导弹进行发射点估计及落点预报需求。
침대예경위성대탄도도탄궤적중건산법복잡、고정도여실시성난이겸고적문제，이용입체시각필배중적목표점외겁선약속급시간약속조건，제출료일충기우지구정지궤도(GEO)쌍예경위성관측적탄도도탄비행궤적중건산법，병진행료방진실험。실험결과표명，해산법대탄도도탄주동단중건궤적여진실궤적접근，재상궤검측오차교소정황하중건점거리진실점오차소우2 km，가만족후속대탄도도탄진행발사점고계급낙점예보수구。
In view of the complexity of the reconstruction algorithm for early warning satellite to ballistic missile, and the trade-off between high precision and real-time being hard, we propose a reconstruction algorithm of ballistic missile flight path based on observation of the geo-stationary earth orbit (GEO) double early warning satellites, by employing the conditions of epipolar constraint and time constraint in stereo vision matching, and perform a simulation experiment. Simulation results illustrate that the reconstruction trajectory of the ballistic missile’s powered phase comes close to the real one, the distance error between the reconstruction point and the real one is less than 2 km under the circumstance of camera detection error being small, which can meet the demand of the following estimation of ballistic missile launching point and forecast of drop point.