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The common method, that all strong-correlation terms of the model are eliminated, can bring the loss in the engineering application, so the new method is proposed that the identified model reserves some correlation. The augmented matrix A is constructed by the outputΔW and the matrix S. The"determinating order based on ratio of determinant"is brought out to screen the strong-correlation terms in the structure identification. The latent root estimation is improved in screening the eigenvalues and eigenvectors. Thus the estimation precision is improved greatly.The consistence check of guidance instrument error coefficients of flight test and ground test is the purpose of flight experiment. The causes of inconsistency of the two models are analyzed. The hypothesis test of linear regression model based on F statistics is proposed to check the consistence.Finally, the instability of error coefficients is probably caused by the change of the flight environments, therefore, the relation between the error coefficients and flight environment is analyzed. The approach is presented to identify SINS guidance instrument error models and compensate the error in the segmented sections corresponding to the change of vertical acceleration of aircraft.

在结构辨识中，常用的方法由于将模型中的强相关项全部剔除而给工程应用带来损失，因此，本文提出了新的有益思想，即在保留一定相关性的基础上进行辨识：将输出向量ΔW与环境函数矩阵S构成增广矩阵A，然后采用"比定阶行列式"来剔除相关向量的方法，这样既可以尽可能多地保留了对落点影响大的强相关参数，又可以对落点影响小的强相关参数给予剔除；在参数估计中，改进了特征根估计中特征根和特征向量的筛选方法，提出"近零"准则，从而大大提高了参数估计的精度；再者，鉴于天地模型"一致性"检验是飞行试验和SINS制导工具误差系数分离的主要目的，因此，本文又深入分析了造成天地模型不一致的原因，提出了采用基于F统计的线性回归模型假设检验方法来进行捷联制导工具误差模型的天地"一致性"检验；最后，鉴于飞行环境剧烈变化可能会对惯性仪表误差系数稳定性带来一定的影响，因此本文深入地分析了SINS制导工具误差系数与外界环境的关系，提出了基于过载变化大小的分段辨识和分段实时补偿的算法。

In chapter 6, we present a general model for construction of families of FH sequences based on pseudorandon sequences based on GF with two-level autocorrelation function.

第5章提出基于GMW序列构造跳频序列族的模型，证明该模型得到的跳频序列族具有最佳的汉明相关性能。

Based on the chemical equilibrium flow assumption, the electron density at the exit of the nozzle is determined using the minimum free energy rule. A numerical model based on auxiliary difference equation is derived to simulate the plasma in the time domain and the calculating results are compared with that using Z transform.

以化学平衡流动为前提，采用最小自由能方法确定火箭发动机喷口处的电子密度；验证了基于辅助差分方程和Z变换方法对羽流电磁特性进行时域建模的正确性。

Firstly, a new two-tuples hybrid weighted averaging operator based on uncertain information processing is proposed. Properties of the operator are also analyzed. A method for group decision making with linguistic information based on T-HWA operator is presented.

首先提出了一种基于不确定信息处理的二元语义混合加权平均算子，并对该算子的性质进行了分析，然后给出了一种基于T-HWA算子的语言群决策方法。

The thesis first probably explains BrushLess Direct Current Motor, and discusses the related control methods, explains the background and Meaning of back electromotive force which is used in the thesis.Then the thesis expounds the basic component parts,the basic running principle,the running characteristic and transfer function of the BLDCM.And then the thesis detailedly dissertates its research pivot: the simulation of BLDCM system in MATLAB based on the method of Back-EMF and the control system of Digital Signal Processor based on the method of Back-EMF.

本文首先对无刷直流电机进行了概述，并对其相关控制方法进行了讨论，说明本文所采用反电动势法的背景和意义；接着论述了无刷直流电机基本组成环节、基本工作原理、运行特性和传递函数，然后是详述本文研究的重点：基于反电动势法的MATLAB调速系统的仿真以及基于反电动势法的DSP控制系统的实现。

Based on the factors about infrared imaging and simulation modeling,the key technology of real-time system for infrared image generation of plane background was enumerated.The infrared imaging simulation and modeling can be divided into four parts:target 3D modeling,plane trail fire,target and background infrared radiance,atmosphere transmission.The method of infrared radiance modeling with Vega was discussed.Finally the process of infrared image generation was presented based on sensor vision module of Vega.

根据红外成像理论和仿真建模特点，列举了以飞机为目标的实时图像生成系统中仿真建模的关键技术；从目标3D建模、飞机尾焰建模、目标和背景辐射建模和大气传输等几个方面阐述了红外成像建模的特点和需求；提出了应用Vega软件专用模块进行红外辐射特性建模的方法；最后给出了利用Sensor Vision模块生成红外图像的过程。

The digital watermarking technology based on spatial domain has characterics of computer briefness and bagger embedded capability, so it has been abroad studied in the first stage of watermarking technology. But gradually it has been replaced by watermarking technology based on frequency domain because of its disadvantage of robustness.

基于空间域的数字水印技术具有运算简单，嵌入容量大的特点，在水印技术发展之初得到广泛研究，但因其鲁棒性太差而逐渐被变换域方法所代替。

A multidimensional online data analysis model based on the business space and method base is introduced, and a framework based on the model is presented.

本文介绍了一个基于业务空间和方法库上的联机分析模型以及多维联机数据分析系统框架XOLDAS的实现技术，采用该框架可以快速开发OLAP系统并具有良好的可扩展性。

In this article, based-on content image retrieval is studied based on these two methods of texture feature of fractal dimension.

本文以上述两种不同方法提出的纹理特征为基础，以基于内容的图像检索为研究对象。

Secondly, based on the literature review and housing price research, based on the basic variables and the basic variable classification system, summarizes the commodity housing prices in China.

其次，本文在国内外住房价格研究文献梳理基础上，根据基本变量和非基本变量分类方式，系统总结出影响我国商品住房价格的主要因素。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。