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 methods of the predictor selection in the temperature forecast, the determination of the initial value in the filter process and the revision of the recurrence coefficient are introduced.
介绍了利用卡尔曼滤波制作温度预报的一种因子选取方法和滤波过程中初值的确定、递推系数修正的处理办法。
The convergence of formula, the determination of initial value to iteration and the calculation of critical depth of water has been discussed, and applied examples are listed is this paper.
对计算公式的收敛性、迭代初值的选取和临界水深的计算进行了讨论，并列举了应用实例。
The convergence of formula, the determination of initial value to iteration and the calculation of critical depth of water has been discussed, and applied examples are listed is this paper.
对计算公式的收敛性、迭代初值的选取和临界水深的计算进行了讨论，并列举了应用实例。
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