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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。

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。

One of the key techniques in Continuous Handwritten Character Recognition is how to model every word entry in lexicon and every sentence that made up by the words. Due to the HMM′s characteristic of time sequence modeling capability, a Cascaded Hidden Markov Models, which defines model connection probability and state transition probability between HMMs, is proposed in this study.

利用HMM对时间序列的较强的建模能力这一特点，提出了可用于连续字符识别的HMM级联模型；给出了字符HMM模型连接概率和模型间状态转移概率的定义，并通过修正训练算法的重估公式，重估字符模型的连接参数，描述了用于手写体识别的字符HMM的设计方案；给出了级联训练算法重估公式和级联Baum-Welch训练算法描述。

In this thesis, based on the preceding research of our laboratory, a new type of cagelike cyclophanes, in which 1,1 '-binaphthyl unit ,the source of chirality and three different linkers(2,6-dibromopyridine, 1,4-diiodobenzene, 4,4'-diiodobiphenyl) connected by ethynyl was designed and synthesized successfully and their optical properties were preliminarily researched.

本论文在大量的文献调研和本实验室过去研究结果的基础上，设计了由2，2'-二取代-1，1'-联萘和2，6-二取代吡啶，1，4-二取代苯，4，4'-二取代联苯三种不同连接桥通过炔键链接构筑的拓扑有趣的光学活性环芳化合物-四联萘笼状分子。

Coupling the right to check the installation requirements: fractional coupling of upper and lower homogeneous space; hand several circles coupling dynamic disk rotating flexible inspection.

安装联轴器正确的检查要求：对分式联轴器上下间隙均匀；用手盘动联轴器数圈检查转动灵活。

A new universal hybrid topology is brought forward. Two types multilevel inverter: equal DC voltage and DC voltage in geometric proportion is studied, besides this, simulation and experiments on SVPWM applied on cascaded H-bridge inverter is also studied.

提出了多电平逆变器的一种通用组合拓扑结构，针对这种拓扑结构重点，研究了直流侧电压相同及等比变化的两类级联拓扑以及级联H桥逆变器的矢量控制方法；并对级联H桥逆变器的矢量控制方法做了实验研究。

The implementation process of the distributed interlock function and the transmission characteristic of the interlock information are analyzed.

研究了分布式联锁功能的实现过程：分析了联锁信息的传输特性，建立了导致联锁信息传输时延不确定的永久失效和瞬时失效模型。

The SINS of FOG is designed and implemented based on DSP. The system is with a dual CPU structure. DSP is used to process data while MCU controls data acquisition and the communication between DSP and MCU is achieved by dual-port RAM. All of these constitute a small strap-down navigation system. Meanwhile introduced a kind of algorithm of SINS, SPI communication and the second boot Loder of TMS320C6713 in briefly. After testing, the system speed and accuracy satisfy design requirements and the system has been applied to actual system.

介绍了一种基于DSP的光纤陀螺捷联惯导系统的设计与实现方法；系统采用DSP+MCU的体系结构，DSP主要完成导航计算，利用单片机实现对数据采集模块的控制，并通过双口RAM实现单片机和DSP的数据通信，构成了一套小型捷联惯导系统，同时给出了一种捷联惯导算法编排，简要介绍了SPI通信和TMS320C6713的二次bootloder方式；经测试，系统速度和精度都满足了设计要求，已应用于实际系统。

This article draws the conclusion that the blowing-carding process can run stable,and it can be utilized in long-staple cotton and super fine yarn .

分析了清梳联工艺纺Jc80s-Jc120s纱的工艺流程，指出了提高清梳联工艺半成品质量的方法，生产试验表明，清梳联工艺系统运转稳定，可适纺长绒棉特细号纱

Phosphate porous starch and PVA were cross linked by methenamine and boric acid Crystal area was serious destroyed by esterification and cross linked. 6 Biodegradation experiment was carried out with soil-burying method.

5红外光谱和X-射线衍射的结构分析表明：在改性淀粉的羟基上引入了磷酰基团，并未破坏原淀粉的基本化学结构；交联剂在改性淀粉和PVA之间形成了C-O-C化学交联键；酯化和交联反应均有较强的淀粉晶区破坏作用。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。