However , due to the elastic deflection and vibration of the links , the flexible manipulator becomes an infinite dimension mimo system with distributed parameters , and is highly nonlinear and strong coupling . therefore , the model and the control of flexible manipulator are of great significance both in theory and in application 然而也正是由于连杆存在弹性变形和振动，使得柔性机械手成为一个高度非线性的、分布参数的、强耦合的无穷维多输入多输出系统， ，因此其建模和控制也具有重要的理论意义和应用前景。
The following algorithms have been proposed and tested in the thesis : 1 frequency selective fading : combine the isomorphism between the input space and the output space and propose a new approach to blind equalization of the channel . compared with conventional methods , the new approach offers lower computational complexity , better performance , and more robust against the over - determination of the system order ; 2 time selective fading : a new approach to the equalization of time selective channel based on the zero - forced equalizer is proposed which is more simple in its structure of algorithm ; 3 time - varying channel : using the instantaneous mean value changes of the output signal to extract the information of channel variations and model it using ar model , kalman filter is then employed to track channel variations , it bears faster ability in tracking the variation of tv channels ; based on the isomorphism between the inputs and the outputs and some of the approaches using in mimo system , a new algorithm of equalization of simo time - varying channel is proposed , which also share the merits of being robust against the over - determination of the system order ; model the time - varying channel using the multi - resolution decomposition wavelets , and then a blind identification method based " on the model is proposed ; at last , a new model for equalization and identification of mimo system is proposed 主要工作在以下几个方面： 1 、针对频率选择性衰落信道：结合输入输出空间同构关系提出一种新的频率选择性信道均衡方法，与传统方法相比，该方法计算量更小，收敛速度更快，性能更优，且对系统阶次的过确定表现稳健，具有实际均衡应用价值； 2 、针对时间选择性衰落信道：提出一种基于迫零均衡的时间选择性信道均衡方法，算法结构简单； 3 、针对时变色散信道：利用瞬态均值曲线提取信道时变信息，对之ar建模，利用卡尔曼滤波器跟踪时变信道抽头变化，可以快速跟踪信道变化；基于输入输出空间之间的同构关系以及多输入多输出系统的处理方法，提出了新的单输入多输出色散时变信道均衡与识别算法，同样具有对信道阶次过确定保持稳健的优点；结合小波多分辨率分析提出一种基于小波模型的信道盲识别算法；研究时变的多输入多输出系统的盲均衡与盲反卷积问题，给出一种时变系统处理模型。
The original nonlinear system is linearized to one one - order system and one two - order system . then design methods for linear systems can be adopted to design each system separately . thirdly , a new fuzzy control method is introduced to design the aircraft microwave landing system , which is based on analytically optimal correction function without quantization 本文以国产某型飞机为对象，应用基于微分几何的非线性多输入多输出系统输入一输出反馈线性化方法，对飞机原始非线性微分方程进行输入输出反馈线性化，将其等效为解耦了的一个一阶线性系统和一个二阶线性系统。
Iterative processing technique which is a nonlinear technique for joint signal processing by the means of exchanging prior information can approach better performance than traditional receiver , so this thesis introduces the research of iterative detection in anti - jamming communication system and distributed multiple input multiple output system 迭代检测技术通过交换信号先验信息,将原本独立的信号处理模块联系起来,使系统获得更优越的性能。因此,本文围绕着迭代检测技术在抗干扰系统和分布式多输入多输出系统中的应用进行了研究。
