In chapter ii , by using the method of regular systems we investigate the stability and exact observability of the non - dissipative flexible beam systems with boundary feedback described by now we outline the contents of this chapter and state some of the results 在第二章中，我们将用正则系统法来研究下述非耗散边界反馈弹性梁振动系统的稳定性与精确可观测性：下面我们具体阐述一下第二章的主要内容以及主要结论。
Unfortunately , nowadays coverage metrics taking observability into account are not very satisfactory . on the one hand , for the observability assessment algorithms proposed up to now , the overhead of computing is large , so they could not be integrated into simulation tools easily 传统的覆盖准则只考虑代码的可控制性，忽略其可观测性，这些准则保证了代码会执行，但其执行错误并不一定可以反映到验证者所选定的观测点上。
The mathematical model is establishd on the force . based on the simulation of matlab , in the pid control method , the dynamic performance analysis to the control system is also given , include time and frequency responses . controllability and observability are analyzed to the hydraulic hitch 在论文中，以力调节为例建立了液压悬挂系统的数学模型，采用pid控制方法对系统进行了理论分析，并利用matlab软件进行了仿真分析，给出了时域和频域仿真结果。
Backed up by the soplat theory based on particle kinematics , the second chapter of this paper presents with analysis and simulation of several single observer passive measurement models , which uses such relative movement parameters as bearings changing rates and centrifugal acceleration information on the basis of bearings measurements . in the third chapter , the observability of location respectively using bearings and its changing rates information and centrifugal acceleration information is analyzed , and its observable condition is got . the fourth chapter puts forward the modified covariance extended kalman filtering ( mvekf ) against the defect of traditional extended kalman filtering ( ekf ) , whose performance is simultaneously compared in the chapter with the performance of ususal tracking algorithm such as ekf , mgekf , iekf by computer simulation 在近年来提出的基于质点运动学原理的单站无源定位理论基础上，本文第二章提出了几种在角度测量的基础上增加角度变化率及相对运动的离心加速度等运动学参数的单站无源测量模型，并对它们进行了分析和仿真；第三章分别对利用角度及其变化率信息定位和利用离心加速度信息定位的可观测性进行分析并得到了相应的可观测条件；第四章针对传统扩展卡尔曼( ekf )方法的缺点，提出了一种修正协方差的扩展卡尔曼滤波( mvefk )方法，并将其和ekf 、 mgekf 、 iekf等常用的单站无源定位滤波方法进行了性能仿真比较；第五章通过引入雷达机动目标跟踪方法和模型，提出了利用角度及其变化率对机动辐射源跟踪的多级噪声自适应方法和imm方法；第六章主要对角度变化率和离心加速度参数的获取技术进行了研究，提出了几种高精度测量脉冲序列多普勒频率变化率的方法。
As groundwork of controlling chaos system , it is first time to offer controllability and observability of chaotic system utilizing difference geometry theory , taking typical lorenz chaos as example . the conclusion on lorenz system is given , and the research method of other chaotic systems are provided at the same time . a kind of synchronization technique is presented based on variable structure system ( vss ) control theory and above conclusion in the dissertation 作为混沌系统控制的基础，以典型混沌系统lorenz系统为例，首次利用非线性系统几何理论对混沌系统进行了能控性和能观性分析，在给出对lorenz系统分析结果的同时，也为实现混沌系统的同步控制提供了理论方法本文提出了一种利用变结构控制方法实现混沌同步的方法。
With widespread use of application inertial navigation , people pay more and more attention to high accuracy and fast initial alignment . the paper - ' study and simulate on moving base initial alignment of strapdown inertial navigation system ( sins ) " , study systematically and all - around the design and realization moving base initial alignment of sins , some further research is done for application of kalman filter in initial alignment , observability and its degree 本文《捷联惯导系统动基座初始对准研究与仿真》 ，较为系统和全面的研究了捷联式惯导系统动基座的初始对准，并对卡尔曼滤波在初始对准中的应用，系统可观测性和可观测度的分析方法和仿真进行了较深入的研究。
The kalman filter theory is introduced and the dynamic error vector equation of the initial alignment is derived at the first . using velocity error as exterior value of observation , maneuverable characteristic that is influenced with system ' s observability and its degree is studied at length by do amount of simulations and experiences . choosing output error of accelerometers and angle error of attitude as observation respectively and system observation model is derived , which is based on analyzing kalman filter theory 首先介绍了卡尔曼滤波理论及相关技术，建立了系统卡尔曼滤波的状态方程和观测方程；首先采用速度误差作为观测值，详尽的研究了系统机动特性对可观测性和可观测度的影响，并做了大量仿真实验：通过对滤波原理的分析研究了影响的原因；分别选用加速度计输出误差和转台输出姿态角误差作为外部观测值，推导建立它们的观测模型，并通过仿真证明了分析结论的正确性。
Secondly , some new concepts including mean value controllability , mean square controllability , mean value observability , mean square observability , mean value stabilization , mean square stabilizability , mean value detectability and mean square detectability of networked control systems are defined in this dissertation . some sufficient or necessary conditions for networked control systems with corresponding properties are presented 提出了网络控制系统的均值能控、均方能控、均值能观、均方能观、均值可镇定、均方可镇定、均值可检测和均方可检测等新概念；得到了网络控制系统具有相应性质的充分或必要条件。
A piece - wise constant system ( pwcs ) method and singular value decomposition method of observability matrix of a dynamic system is proposed . and the good effect is achieved for analyzing observability and its degree of strapdown inertial navigation systems in initial alignment stage . through the computer simulation for different maneuver trajectories of the carrier in initkil alignment stage , obtain some important results 本文对捷联式惯导系统动基座初始对准这种时变系统，研究和分析了pwcs (分段线性定常系统)方法来判断系统的可观测性，奇异值分解的分析方法判断系统各状态的可观测度，并通过大量的仿真实验，验证了这两种方法，得出了一些重要信息。
The nonrecursive algorithm is proved to terminate in finite steps and turn out to be a constant vector too . because two modifications estimated models are asymptotically uniformly nonsingular , thus the possible singularity in the adaptive pole placement systems is completely avoided . however the prior knowledge required is only the observability indices of systems , thus , the required prior knowledge is greatly reduced 非迭代的修正策略证明了参数修正向量在有限步内收敛于一个常向量；上述两种修正策略均保证了估计模型的一致能控性，从而彻底解决了自适应极点配中可能出现的奇异性问题，而所需的先验知识仅为系统的能观性指数。
