The paper introduces the fundamental principle of direction finding with amplitude comparison and analyses two ways of forming cross beam.
简要介绍了比幅测向基本原理,并分析目前2种交叉波束的形成方法;结合2种交叉波束形成方法的优缺点,提出了一种适合宽频带比幅测向且用移相器和3 dB定向耦合器移相来形成交叉波束的方法;根据工作中心频率设计天线间距和移相器移相大小,并利用3 dB定向耦合器将交叉波束的交叉点保持在某个固定电平附近;同时对其进行仿真分析,取得良好的效果。
This thesis contain: some classical array configuration’s characteristics are listed and analyzed; the sparse spatial array’s synthesis method is studied under multiple restrictions; spatial power combination realized by cross beam method is studied; and the law of electric strength distribution in target area is investigated, too.
空间功率合成作为一个复杂的系统工程,待研究的内容较多,本文主要关注实现空间功率合成的原理以及天线布阵技术对它的影响,主要内容包括:对多种阵列形式的特性进行讨论和分析;研究在多约束条件下,三维稀疏体阵列的综合方法;研究交叉波束实现空间功率合成的方法,并考察目标处电场强度的分布规律。
The effects of Semaphorin 3a on the development of optic chiasm of mouse embryos;
Semaphorin 3a对小鼠胚胎视交叉发育的作用
Morphological study of optic nerve atrophy and compressive optic chiasma atrophy and its clinical significances
视神经与视交叉压迫性神经萎缩形态学研究及其临床意义
The relationship between pituitary adenomas and optic chiasma and visual disturbance
垂体瘤和视交叉的关系与视功能障碍
Initial theories suggested a pathway from the retina to the suprachiasmatic nucleus.
初步理论表明视网膜至视交叉上核间有一通道。
Study on relationship of MRI manifestation of optic chiasma circum-tumor and visual field damage
视交叉周围肿瘤MRI表现与视野损害关系的研究
Abnormal shape of optic chiasm with encephalomalacia of the frontal lobe was found in 1 case of trauma.
外伤 1例 ,表现为视交叉形态异常伴额叶软化灶 ;
Replace crosstab table with PivotTable report?
是否以数据透视表替换交叉分析表?
The Remold of Quality Education in Universities on the Cross-disciplinary Level;
学科交叉视角:高校素质教育的重塑
Focus of Multiple Views:Value and Significance of Pre-Convergent Education
多视角聚焦:前交叉教育的价值和意义
Plugging Three Elements into Solfeggio
论视唱练耳教学中三要素的交叉融合
Windows Rootkit Detection Method Based on Cross-view
一种基于交叉视图的Windows Rootkit检测方法
Video Recognition of Crossway s Traffic Flow and Signal Lamp Control System;
交叉路口交通流视频识别及信号灯控制系统
Traffic Characteristics of Pedestrians and Bicycles at Signalized Intersection Based on Video Analysis
基于视频的信号交叉口行人自行车交通特性
Runs the Query, Cross-Tab, Graph, Local View, and Remote View Wizards
运行“查询、交叉表、图形、本地视图和远程视图向导”
cross-junction box
交叉接线盒，交叉接线箱
crossing:The act or action of crossing.
交叉:交叉的行为或动作
The act or action of crossing.
交叉交叉的行为或动作
The Retrobulbar Neuritia likely Misdiagnosed crossly with other Diseases
球后视神经炎与其它疾病交叉误诊的分析
Modeling and simulation of Cross Criterion of Field of View of ATGM
某反坦克导弹视场交叉判据建模与仿真
Civil Society under the Ken of Economics and Organization Theory
经济学和组织学交叉视野下的公民社会