This paper , in advantage of modern control theories , designed the pitch control system and the altitude holding system of the x armed helicopter , and present digital simulation , coupling analysis , sensitivity analysis , system performance analysis under different input and initial condition 本文应用现代控制理论设计了某型武装直升机的俯仰角控制系统和高度保持系统，并进行了数字仿真、耦合分析、飞行状态变化对控制系统性能的影响分析，及在不同输入初始条件下的系统性能分析。
Based on the analysis and comparison on the normal design methods of distributing system , we propose a wholely distributed implementation method of ospf based on warr ( with - area - routing - region ) , lay an emphasis on the parallel routing table computation and the design of the link state database , and describe the ospf protocol processing in detail . in the chapter four we give a software implementation of our design . the test of implementation proves that our design is feasible and correct 在对现有分布式系统一般设计方法分析比较的基础上，提出了基于warr ( witharearoutingregion )技术的全分布ospf协议实现方案，重点对并行路由表计算及链路状态数据库发计进行了详细研究，并详细分析了osfp协议的各个处理过程，从软件设计角度实现了该设计方案，实际测试环境测试的结果验证了该方案的可行性及正确性，同时系统性能分析的结果表明，该设计方案能满足tbit路由器设计需求。
First of all , the correlation definitions of spreading sequences , which are used widely in the system performance evaluation , are provided , including the cross - conrrelation property at a specific shift , the periodic ( cross - ) correlation mean square property and the aperiodic ( cross - ) mean square correlation property 本文首先给出了系统性能分析中常用的扩频序列集相关性定义，包括在特定位移处的互相关特性、周期(互)相关均方特性、非周期(互)相关均方特性等；通过对wh序列集、 go序列集和ls序列集构造方法的分析，得到了其相关特性的分析结果。
In this thesis , the zero correlation zone ( zcz ) or generalized orthogonal ( go ) sequences are applied to direct - sequence cdma ( ds - cdma ) systems , and the corresponding system performance are analysed . topics on the correlation property analysis of hadamard walsh ( wh ) sequences , go sequences , and loosely synchronous ( ls ) sequences are performed , and the system model and performance evaluation of single - cell and multi - cell synchronous cdma ( s - cdma ) systems employing go sequences , and the applications of go sequences in quasi - synchronous cdma ( qs - cdma ) systems are elaborated 本文研究了零相关区( zcz )或广义正交( go )序列在直接序列码分多址( ds - cdma )系统中的应用并给出了系统性能分析结果，包括hadamardwalsh ( wh )序列集、广义正交序列集与松散同步( ls )序列集相关特性分析，采用广义正交序列的单小区与多小区同步cdma ( s - cdma )系统模型与性能分析，以及广义正交序列在准同步cdma ( qs - cdma )系统中的应用等问题。
In this article we study performance analysis of mpc control system from two aspects , academically and for application , and get some conclusions : 1 . on the base of conventional performance assessment method we propose integrated performance analysis method of multivariate control system ( ipammcs ) . this method can present more information about the existing control system , such as stochastic performance , deterministic performance and oscillation 本文从理论和实际应用两个方面对mpc性能进行了研究，并取得了以下结果： ( 1 )在传统的性能评价方法的基础上提出了综合的多变量控制系统性能分析方法( integratedperformanceanalysismethodofmultivariatecontrolsystem ，简称ipammcs方法) ，这个方法能从确定性能性能、随机性性能及是否存在振荡几个方面有效地评价已有的控制系统；该方法不仅适用于对具有一般控制器的控制系统的评价，而且对于基于模型的控制系统的评价也是非常有效的。
