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In order to ensure the precision and reliability, this paper designs the GPS/Loran C/SINS/AHRS integrated system. In this integrated system, the self-adaptive federated Kalman filter is introduced to revise strap-down inertial navigation system; the heading angle attitude and heading reference system is used to ensure the convergence of heading angle; and the coordination transformation for Loran C is applied to eliminate the constant error of Loran C.

针对导航精度及可靠性，设计了GPS/罗兰C/SINS/AHRS组合导航系统，该组合导航采用了自适应联邦卡尔曼滤波的方法，通过闭环形式校正SINS，并用姿态航向参考系统代替捷联惯性导航系统输出的航向角以保证航向角的收敛，同时对罗兰C的测量值进行坐标变换以消除由于坐标系不同而带来的常值误差。

The research collectively utilized some modern control devices, such as PLC, frequency conversion device, sensor, and their program control method, all of these are of some reference value to the study of relative control system.

本论文综合运用了可编程控制器、变频器、传感器等现代工业控制常用的控制部件及其相关程序设计方法。所做的研究对同类系统的研究和开发具有一定的参考价值。

This design integrates some modem control devices, such as industrial control computer, PLC, frequency conversion device. All of these are of some reference value to the design of relative machines and industrial control systems.

本设计中综合运用了工控机、可编程控制器、变频器等现代控制部件，所做的研究和开发工作对同类设备以及一般的工业控制都有参考价值。

And storage, etc., and to provide the conversion table of various hardness number for reference.

硬度机可选配摄影装置，能对所测压痕和材料金相组织进行拍摄。

The text also contains a rapid reference section of common terminology, conversion tables, laboratory results and other useful information.

案文还包含一个快速参考的一段共同的术语，换算表，化验结果和其他有用信息。

But in our method, the reference function value of the iteration point is defined by a special weighted average, i.e., a convex combination of all previous function values.

而在此算法中，迭代点的参考函数值为一特殊的加权平均值，即前面所有点函数值的凸组合。

In reference to existing price models, a new price model--price formation model is formulated, which concludes that the price of current period product can be shown as the convex combination of unit product material consumption of the previous period and current period plus the convex combination of gross profit gained when the unit product of previous period and current period is sold at current period.

该模型表明，本期的产品价格可以表示成上期和本期单位产品物耗成本的凸组合与上期和本期单位产品在本期出售所获得的广义毛利的凸组合之和，这一结论是非常耐人寻味的。

Convex lens imaging simulation to help thinking, offensive reference can be directly downloaded.

详细说明：模拟凸透镜成像，帮助思维，进攻参考，可直接下载。

In inner action domain, the local coordinate of each point related to test feature curve need to be calculated, and then the point is deformed by finding the position with the same coordinate related to reference feature curve.

在内部作用范围内，通过计算每一点相对于测试特征曲线的局部坐标，然后在参考特征曲线坐标系下找到相同的坐标位置，完成该点的交换过程。

Based on the rule that all the coordinate value of the basic vector is integral in coordinate plane, an algorithm for approaching the reference vector in coordinate plane was drawn out, which is easy to be realized by arithmetic and rounding operation.

本文根据基本矢量在两相坐标平面的坐标都是整数的规律，总结得到了在两相坐标平面下对参考电压矢量进行逼近的算法，该算法只需要进行简单的四舍五入与加减运算，易于实现。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。