The results of calculation and simulation indicate that application of the discrete method for problem of trajectory optimization can avoid the problem of initial value sensitivity.
仿真计算结果表明这种离散化的方法应用于此轨道优化问题可以避免传统轨道优化方法对初值敏感的问题。
In this paper, moment method is used to deal with the first boundary value problem of one dimensional wave equation with stochastic initial and boundary conditions.
本文使用矩方法处理了具有随机初始条件的一维波动方程的第一边值问题。
By using the method of multiple scales and the comparison theorem, the asymptotic behavior of solution for the initial boundary value problem is studied.
利用多重尺度法和比较定理，研究了初始边值问题解的渐近性态。
The traditional raytracing methods comprise the try-shooting method of the initial value problem and the bending method of the border value problem.
传统的射线追踪方法包括初值问题的试射法和边值问题的弯曲法。
Based on the research of orbit determination by using two GPS satellites, this paper discusses the initial value problem and provides an effective method of getting initial value.
研究了用两颗全球定位系统(GPS)卫星粗略确定低轨卫星轨道的问题，并着重讨论了其中的初值问题，给出了一种有效的初值方法。
The finite element method is used to numerically solve the initial and boundary value problem of the mathematical model.
采用有限元法求解数学模型的初值、边值问题。
The stability, starting problem, initial value of sub-iteration and convergence criterion of implicit iteration of the dual-time stepping method are studied.
对双时间步方法隐式迭代的稳定性、启动问题、子迭代初值和收敛性准则进行分析。
The initial PID parameter value is determined by the relay auto-tuning method, so the part minimum problem of the neural network can be prevented.
用继电器自整定法确定PID参数的初值，防止神经网络的局部极小问题。
The overdetermined equations can be solved directly by using the rejection method to give the initial value of the position first and then converting the problem into a linear—square one.
另一类变量与向量函数呈非线性关系。 对于后一类变量，用弃舍随机方法先给出位置初值，然后将问题化为线性最小二乘问题，直接解超定方程组。
Upper lower solutions method and monotone iterative technique are applied to initial value problem.
对于初值问题，采用上下解的单调迭代方法求解。
The result of numerical experiment shows that the error of asymmetric FEM is small , the method may be used in engineering and the description of the initial-boundary value problem is rational.
数值实验结果表明，不对称有限元法的计算结果误差较小，能在工程实际应用，而且混合问题的提法是合理的。
This paper deals with the solution method of the initial value problem of linear vibration systems in the time domain.
利用积分因子降阶法，给出了确定单自由度线性振动系统对任意激励响应的杜哈梅积分的一种新的推导方法。
This paper deals with the solution method of the initial value problem of linear vibration systems in the time domain.
利用积分因子降阶法，给出了确定单自由度线性振动系统对任意激励响应的杜哈梅积分的一种新的推导方法。
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