Compared to the three or double channels tracking system , this system can reduce the system cost by half or more , and some extra technology demands can be ignored 比之三通道单脉冲或双通道单脉冲技术,它的信道设备量减少了三分之二或者二分之一,而对多信道的一些技术要求已可以不必考虑。
Tcvs integrated the traditional simulation computation with the virtual environment . it is an important part for studying and experimenting in the virtual underwater weapon combat environment 水声对抗三通道视景仿真系统将传统的仿真计算和虚拟环境有机地结合为一体，是水下武器虚拟作战环境研究和试验的重要组成部分。
The research , exploitation and application of the 3 - channel visual simulation system of ' the underwater acoustic counterwork ( tcvs ) is one of the most important tasks for the development and construction of navy equipments at present 水声对抗三通道视景仿真系统的研究、开发及应用是目前海军装备发展和建设中的一项重要任务。
Result shows : 2 ) the composed tb make virtue of the three channels , and it get over the saturation of 19 . 35 and 37 . 0 ghz to strong rain and the low sensibility of 10 . 65 ghz to light rain to some extent 结果表明：组合亮温能够充分利用三通道的优势，在一定程度上克服了19 . 35gh _ z和37 . 0gh _ z通道对大雨容易饱和以及10 . 65gh _ z通道对小雨不敏感的缺点，能够更加清楚地反映降水结构。
Over ocean : the structure of typhoon and the relation between rain rate and tb of all the tmi channels are investigated using the trmm data , based on which three channels are composed to reflect the rain rate well 对于海洋地表：通过微波图像分析了台风结构，重点研究了各通道亮温与地面瞬时雨强的关系，利用海洋表面低频通道对降水的发射增温作用，合理组合低频三通道来反映降水结构。
They refer to the city belt along yangtze river , the town development axis from north to south , and the three main highway channels from nanjing to chuzhou , mingguang and fengyang , from nanjing to quanjiao and hefei , and from nanjing to the hilly area of jurong “一带一轴三通道”是指以沿江城市带、南北向的城镇为发展轴和南京至滁州、明光、凤阳通道，南京至全椒、合肥通道及南京至句容山区三条主要公路通道。
In this paper , the signal processing of sum and difference patterns of amplitude dual - plane monopulse radar and the effect of amplitude - plane non - consistency are analyzed from the coordinates relationship of four - horn antenna at length , and its corresponding simulation is verified , which bring convenience to engineering implementation 文中从四喇叭天线的位置坐标关系，详细分析了双平面振幅和差式单脉冲雷达信号处理过程以及三通道幅相不一致性的影响，并且进行了相应的仿真，为工程实现带来了很大的便利。
Included three positions system , the helicopter airscrew electro - hydraulic servo loading system has coupling nexus of three positions and three loadings . trough analyzing nexus of the displacement and the force , this paper designs the three channels electro - hydraulic servo loading system basing on the analysis of single channel electro - hydraulic servo loading system . surplus torque , which is produced through position disturbance , is a chief problem facing aerodynamic loading system 直升机旋翼的操控通过三个助力器完成，模拟负载时把旋翼所受空气动力折算到了三个助力器上，由于三个助力器是铰点在一个模拟盘上，所以三通道加载系统与三个助力器位置系统有一定的耦合关系。
The work in this thesis focuses on the design , exploitation and realization of the tcvs . the main research and achievements are as follows : ( 1 ) the developing environment of software associate with mfc , opcngl and opengvs , which establish the virtual combat environment of the underwater acoustic counterwork with three - dimensional visual simulation and sound , etc . the problem of chinese character display under opengvs has been solved , and the assistant charts have been used to show the parameter of underwater combat 本论文围绕“水声对抗三通道视景仿真系统”的设计、开发及实现而展开，其主要研究工作及所取得的研究成果如下：基于mfc 、 opengl和opengvs联合的软件开发环境，建立了三维视景、声效及许多效果相结合的水声对抗虚拟环境。
