当前位置:网站首页>雷达天线简介
雷达天线简介
2022-06-29 14:52:00 【毛毛真nice】
天线是雷达与外界联系的部分。它实现多种目的:
(1)发射时集中能量,即有定向性并具有窄波束宽度;
(2)收集来自目标的回波能量;
(3)提供目标角位置测量;
(4)提供角度上分辨(或分离)目标的空间分辨率;
(5)观测期望的空域。
天线可以是机械扫描的抛物反射面、机械扫描的平面相控或机械扫描的端射天线。它可以是电扫描的相控阵,使用配置有分支馈线或空馈电的馈源把单部发射机功率分配到每个阵元上,或是电扫描的相控阵,它的每个阵元采用一个固态“袖珍”雷达(也称为有源孔径相控阵)。每种天线都有其特殊的优点和限制。一般而言,天线越大越好,但对其尺寸会有实际上的限制。
注:文章摘选自《雷达手册》第三版
边栏推荐
- MySQL JSON array operation JSON_ array_ append、json_ array_ insert
- 信息学奥赛一本通2061:梯形面积
- Informatics Olympiad 1001:hello, world!
- Northwestern Polytechnic University attacked by overseas e-mail
- You need to know about project procurement management
- 微信公众号—菜单
- Evaluation index of high concurrency software (website, server interface)
- SOFARegistry 源码|数据同步模块解析
- Lumiprobe click chemistry - non fluorescent azide: azide-peg3-oh
- Get the width of text component content
猜你喜欢

如临现场的视觉感染力,NBA决赛直播还能这样看?

文本预处理库spaCy的基本使用(快速入门)

Analysis of constant current source circuit composed of two NPN tubes

What is the relationship between synchronized and multithreading

信息学奥赛一本通2061:梯形面积

MCS: multivariate random variable polynomial distribution

EMC surge protection and decoupling design

Const usage

Uncover the practice of Baidu intelligent test in the field of automatic test execution

Unity C# 基础复习27——委托示例(P448)
随机推荐
MCS:多元随机变量——离散随机变量
I am 35 years old. Can I change my career to be a programmer?
Unity C basic review 27 - delegation example (p448)
明德扬XILINX-K7-325T/410T核心板数据手册
MCS: discrete random variable Poisson distribution
BioVendor遊離輕鏈(κ和λ)Elisa 試劑盒的化學性質
阿里云体验有奖:使用PolarDB-X与Flink搭建实时数据大屏
MCS:离散随机变量——Poisson分布
Unity C# 基础复习27——委托示例(P448)
真正的软件测试人员 =“半个产品+半个开发”?
PyTorch 二维多通道卷积运算方式
Lumiprobe reactive dye cycloalkyne dye: af488 dbco, 5 isomer
Huashu high tech rushes to the scientific innovation board: the actual controller xuxiaoshu and his son, who plan to raise 660million yuan, are both American nationals
Is it safe to open a stock account at present? Can I open an account online directly
目前股票开户安全吗?可以直接网上开户吗
关于遥感图像解译的思考
synchronized 与多线程的哪些关系
MCS:离散随机变量——Hyper Geometric分布
Knowledge points: what are the know-how of PCB wiring?
MySQL JSON array operation JSON_ array_ append、json_ array_ insert