Analyze the linear dipole array with uniform element spacing using the method of moments ( mom ) , derive the analytical expression for the recovered signal with the direct data domain method , demonstrate the effect of the mutual coupling on the performance of the antenna array by examples , the degradation of the system caused by the mutual coupling is simulated and analyzed in two different electromagnetic environments such as the weak and strong interference 用矩量法计算了几个信号同时照射时对称阵子均匀直线阵的电流分布,用直接数据域算法推导了此接收阵列的恢复期望信号的表达式,举例说明了互耦对阵列天线性能的影响,数值模拟了在弱干扰和强干扰下,互耦造成系统性能下降的情况并分析了原因。
The claimed train approval dss take advantage of the advanced es and dss techology . the practical system uses delphi6 . 0 software platform of borland corp . and adopts the object oriented designing and programming to insure the advantage of the the design of the system . the whole database of the system is designed on the platform of the sql server2000 , can connect oracle or sybase database etc . by using odbc , can achieve the data exchange and information use in common of the tmis and fmos , and can insure that the system is easy to develop and extend 铁路请求车审批辅助决策系统采用先进的专家系统( es )和dss技术,研制开发的实际应用系统,选择了最新的borland公司的delphi6 . 0软件开发平台,采用了面向对象的程序开发方法,确保了系统的先进性。系统综合数据库的设计是在sqlserver2000平台上完成的,可通过odbc接口与oracle或sybase等大型数据库连接,实现与外部相关的tmis (铁路管理信息系统)及fmos (货运营销及生产管理系统)系统的直接数据交换与信息共享,保证了系统具有较好的开发性和信息可扩展性特点。
直接: direct; immediate数据: data; record; information直接数据集: direct data set直接数据俘获: direct data capture直接数据附加: dda direct data attachment直接数据交换: dde direct data exchange直接数据结构: direct data organization直接数据输入: dde direct data enter; direct data entry直接数据通路: direct data path直接数据相关: direct data dependence直接数据总线: direct data bus直接数据组织: direct data organizatioin; direct data organization直接数据, 立即数据: immediate data直接数据处理系统: ddps direct data processing system; on line data handling system; on-line data handling system直接数据登录站: ddes direct data entry station直接数据输入输出: data-directed input-output直接数据相关性: immediate data dependency直接数据虚电路连接: data-direct virtual circuit connect直接数控: control, direct numerical (dnc); dbc direct numerical control; direct digital control; dnc direct numerical control直接数值法: direct numerical method直接数字流: direct stream digital非邻接数据: noncontiguous data交接数据集: passed data set连接数据: link data连接数据库: bindery