The analysis of the performance and its comparison to space time transmit diversity ( sttd ) are presented in this chapter . the link level simulations are performed . finally we discuss the effects of feedback delay and feedback error on the performance 第五章首先介绍了闭环发送分集的原理；接着对其性能进行了仔细的分析，完成了链路级仿真，并与开环发送分集进行了对比；最后讨论了反馈延迟、错误对性能的影响。
The research results is briefed as follow . ( 1 ) a new communication and decision - making method is presented , which integrated several new tools as well as some old ones ; ( 2 ) a new concept of " virtual communicating place shared in real time by multi - user " is brought forward , and a new technology based on event - driving and message - transferring mechanism is designed to realize graphic data shared by multi - user and displayed synchronously under net environment , which is the basis of the whole system . ( 3 ) a new mechanism for team members to share data efficiently is devised , which supports collaborative working in progress , maintains the consistency of data , records the history of design and etc . by defining a new type of the design data attributes and the privilege of team member to access to data in different time , using a new method of data manipulating , the team data sharing is realized 本文的主要研究成果为： ( 1 )在研究国内外网络决策交流方式方法的基础上，综合多种方法的优点，提出了一种新的决策交流方式，采用了多种手段和工具，完善了网络决策交流的机制； ( 2 )提出了多用户共享的可视化虚拟交流空间的概念，并对其实现技术进行仔细的分析，针对目前存在的技术难点，提出了可行的解决方案，设计了一种新型的基于事件驱动和消息传递机制的多用户实时共享图形数据的解决方案，并采用了跨平台的java技术实现了网络环境下图形数据的实时交流和显示； ( 3 )针对团队协同的网络cad系统的特点和要求，提出了一种新的团队数据共享机制，通过对产品数据的基本属性、历史属性、共享状态属性和关联属性的定义，结合对团队成员在不同设计阶段的权限控制，采用新型的对共享数据库的数据操作方法，动态地维护团队数据的共享、设计的变更、设计进程的同步、关连数据的一致性、以及多个团队之间的数据交流。
Abstract : this paper and its sister paper mainly investgate a prey - predator system of holling " s functional response with havesting term . by studying the change of relative situation of the sepdrdtrixs of two saddle points , a comparative completely qualitative concluaion is given . in this paper , we mainly analysis the existence of the limits cycles , particularly the existence of the three limits cycles 文摘:在文7 8的基础上，分析一类食饵具常数收获项的类功能反应的捕食系统.通过对两鞍点分界线相互位置仔细的分析，得到了比较完备的定性结论，特别是第一次在生态系统的讨论中得到了三个极限环的存在性
Then the present capacity of gsm and cdma system is analyzed and the cellular system total capacity adopting this co - frequency transmission scheme will be discussed in detail . it can be estimated that such an overlay has the potential of enhancing the overall spectrum efficiency and system capacity and it can provid e for the flexibility of spectrum utilization . finally this scheme will be simulated and then we analyze the relationship between spread spectrum processing gain , system capacity and mutual interference according to simulation results 然后对现有的gsm系统和cdma系统的容量进行了分析，并对采用同频传输方案的蜂窝系统容量进行了仔细的分析，通过计算得出用宽带cdma系统与gsm系统进行频带共享，可以大大提高整个系统的容量，最后进一步对该方案进行了仿真，根据仿真得到的结果分析扩频增益与系统容量和相互干扰之间的关系。
The paper talks the necessary reason of predication and estimation of the power unit , and pays emphasis on the technique of predication and estimation of the dc voltage of the main electrocircuit in inverter and the temperature of the power unit , and then discusses the question from three aspects including constitution of mathematic model , completion of predicative arithmetic and experimentation 本论文首先讨论了对功率器件进行预测与估计的必要性，然后结合科研实际，主要针对半导体功率器件的温度和逆变器主回路的直流电压这两个状态参量的预测与估计问题，从数学模型的建立、状态预测算法的实现及实验与结论三方面进行了仔细的分析和详尽的阐述。
And in this part , the algorithm of polygons is emphasized . the second part is focused on image morphing . after expatiating its principal algorithms and mature methods , a method among multiple images is presented and analysed in detail . second , in the second chapter of this thesis , the basic theories and methods are systematically discussed , especially thiele continued fractions , because it is the main interpolation tool in the experiments . and finally , the processes and results of experiments in the application of continued fractions to 2d object metamorphosis are given , and detailed analyzing and discussing are made . the experiments show that the results are good . this demonstrates that it is successful for continued fractions to be applied in the processes of 2d object metamorphosis 其次，在本文的第二章，系统地论述了连分式的基本原理和应用方法，尤其是对thiele型连分式插值函数作了具体的讨论，因为，它是在实验中所用到的主要的插值工具。最后，本文的结尾，给出连分式应用于二维物体渐变的实验过程和结果，并对其进行了仔细的分析和讨论。实验表明，把连分式用在二维物体的渐变过程中，取得了不错的效果，是成功的。
The theories and practice both at home and in abroad shows that the creation of intercourse places needs and worths elaborative efforts . the quality of the design relies on the consideration and close research on the needs of communication and interconnection for college students and teachers and their intercourse behavior 国外的相关理论和经验表明，交往空间是一种必须精心处理的建筑空间，其实现的质量依赖于对师生交往行为客观仔细的分析研究以及对场所感的创造。
The paper systematically discusses the basic theories and methods of software testing and software debugging technology , illustrates the principle and opinion about software testing , the befitting posture of automatic software testing , the strongpoints and disadvantage of automatic software testing according to the author ' s experience and suggests two methods of automatic software testing 本文系统地论述了软件测试调试技术的一般原理和方法，结合作者的软件开发经验和测试实践，对软件测试的原则、软件测试的认识、适合与不适合对软件进行自动化测试的情形以及自动测试的优缺点进行了认真、仔细的分析和说明。
In this thesis , to overcome the difficulty in controling material growth , the detector ' s structure was improved , and the improved novel gaas / algaas qwips were fabricated . the improved mechanism was analyzed theoretically in detail , and to verify the feasibility of the improved structure , many experiments were attempted 本文就是在新结构的基础上，结合此结构材料生长的难点，对新型探测器结构进行改进，制备了改进以后的新型gaas algaas量子阱红外探测器，从理论上对改进结构进行了仔细的分析，在实验上试图验证改进后新型量子阱红外探测机制的可行性。
During the design process issues , first of c & c08 digital program - controlled switching system in detail and then single format value indicating the careful analysis , then , the main program of the algorithm and delphi translation process , and the main landing interface and the interface design steps , the final design of the whole process of summing up , on the billing system and the improvement and development prospects 在本课题设计过程中，首先对c & c08数字程控交换系统详细话单格式及取值说明进行了仔细的分析，然后重点介绍了主程序的算法和delphi编译过程，以及登陆界面和主界面的设计步骤，最后对整个设计过程做了总结，并对该计费系统的完善和发展进行了展望。
