更新

Company will strictly of the direct examination scoops out in the production, sale, each link in etc.

公司将严格的监督检验挖掘在生产、销售、售后服务等各个环节，同时，一批高素质的技术人员和职工队伍，兢兢业业的工作，使产品不断更新。

The updating algorithm of Strapdown matrix is one of the crucial techniques of SINS. There are several kinds of attitude updating algorithms of SINS, such as direction cosine algorithm and quaternion algorithm.

捷联矩阵更新算法是捷联系统的关键技术之一，捷联惯导系统姿态算法有欧拉角法、方向余弦法、四元数法和圆锥补偿算法等几种方法。

The calculation of initial alignment direction cosine matrix between SINS body frame and navigation reference frame is expanded into three parts:(1) the DCM between i0 frame and n frame is easily obtained via local geographical coordinates and initial alignment time;(2) by expressing SINS specific force equation in b frame and by the aid of external velocity log, the constant DCM from i(subscript 0) frame to i0 frame is achieved;(3) attitude updating using gyro samples gets the DCM between b frame and i(subscript b0) frame.

将捷联惯组坐标系与导航坐标系之间的初始对准姿态矩阵的实现分解为三步骤：(1)通过地理位置和初始对准时间求解i0系至n系的变换矩阵；(2)通过惯导比力方程变形，引入刚速仪速度辅助，求解从i(下标 b0)系至i0系的常值变换矩阵；(3)使用姿态更新算法实时计算b相对于i(下标 b0)系的变换矩阵。

On moving base, a new initial alignment algorithm for strapdown inertial navigation system is proposed. In the algorithm, two special inertial frames, the initial-time inertial frame (i0 frame) and the initial-time SINS body inertial frame (ib0 frame), are defined and are selected as calculation reference frames, then, the calculation of initial alignment direction cosine matrix is expanded into three parts:(1) the DCM between i0 frame and the navigation frame will be easily obtained via local geographical coordinates and initial alignment time;(2) attitude updating using gyro samples gets the DCM between SINS frame and ib0 frame;(3) by explaining SINS specific force equation in SINS body frame, the relation between velocity log, accelerometer measurement and gravity acceleration is established to achieve the constant DCM from ib0 frame to i0 frame.

在运载体运动情况下，提出了一种适用于捷联惯导系初始对准的新算法，该算法以惯性空间为参考基准，即建立了初始时刻惯性坐标系（i0系）和初始时刻捷联惯组惯性坐标系（ib0系）两个惯性坐标系，将初始对准姿态矩阵的实现分解为三部分：（1）通过地理位置和初始对准时间求解i0系至导航坐标系的变换矩阵；（2）使用姿态更新算法实时计算捷联惯组相对于ib0系的变换矩阵；（3）通过惯导比力方程变形，获得测速仪辅助测量、加速度计输出和重力加速度之间的关系，从中可以求解出从ib0系至i0系的常值变换矩阵。

The system parameters are determined by optimizing an output-error cost function. To deal with the non-uniqueness of the fully parameterized state-space system, a projected gradient search algorithm is presented by restricting the update of the parameters to the tangent space to the manifold of observationally equivalent state-space systems. The sufficient condition to employ L-M algorithm for optimizing parameters is also introduced. The proposed hierarchical optimization identificationmethod includes two steps: First, the parameter search direction is determined by the proposed adaptive L-M projected gradient approach; Second, the optimum step size is computed according to a line search method.

通过极小化输出误差目标函数获得了系统参数估计；提出了正交梯度搜索方法用于解决系统参数的非唯一性问题，正交梯度搜索的本质是在输入-输出等价类相切平面的正交垂空间更新系统参数；给出了用 L-M 算法进行参数优化的充分条件；提出的系统参数递阶优化辨识方法包括两步：首先用给出的自适应 L-M 算子正交梯度方法确定参数优化方向；其次由一维搜索方法计算最佳步长。

It modifies the rule of updating pheromones in ACA,so that after every round of search,the increment of pheromone can better reflect the quality of a solution to quicken the convergence;In addition,it uses the heuristic mutation to optimize tours,generate disarrangement effect and avoid precocity.

它修改了基本蚁群算法中信息素的更新规则，使得每轮搜索后信息素的增量能更好地反映解的质量，以加快收敛；另外，它采用了一种启发式变异方法对路径进行优化，以产生搅动效应，避免早熟。

This allows the mobile terminal, which receives data of a specific point-to-multipoint service discontinuously, to effectively recognize whether the control channel information has been updated.

这样可以使不连续地接收特定点到多点业务数据的移动终端有效识别该控制信道信息是否已经被更新。

I once had seen someone say not to update a website for long, baidu disinclination will change again.

我曾经看过某人说长时间不更新网站，百度不感爱好了再来改。

However, what happened to foreign countries in the commercial space has been disturbing us, with environment problems, traffic problems, separation and disorderliness between the commercial architecture and urban space the most serious.

随着城市更新速度的飞速发展，人们生活方式的多元化趋向，我国城市商业空间的发展也日新月异，但同时也面临着国外曾出现过的许多问题的困扰：环境问题、交通问题以及商业建筑与城市空间脱节、无序等状况显得尤为突出。

It is installed within the dispatcher of devices via the update of driver by hand.

这是安装在调度的设备通过更新驱动程序手。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。