针对没有标准弹道模板先验信息支持的情况下,单星观测弹道估计问题中观测信息不全,无法直接进行弹道估计,并且在使用残差大小作为优化标准,收敛不确定问题,提出了采用双损失函数的确定性弹道估计方法.利用基于观测量的损失函数和基于高度偏差的损失函数联合搜索确定弹道中两点高度,从而确定弹道平面方向,保证系统确定地收敛到最优解.通过数值仿真验证了算法的有效性.%The trajectory of ballistic missile could not be estimated by single satellite passive detection without supports of standard trajectory templates,since the observing information is not sufficient.While considering the residual as optimization criterion,the convergence is uncertain.Aiming at the problems above,a determinable trajectory estimation method using dual cost function is proposed.The plane of trajectory is determined by two heights among the trajectory utilizing a union searching based on the observation cost function and the height cost function.This will make sure a convergence to the optimized solution to the system.The effectiveness of the algorithm is validated by numerical tests.
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