脉冲多普勒雷达测速仿真
摘要
脉冲多普勒(PD)雷达以其卓越的杂波抑制性能受到世人瞩目。现代飞行器性能
的改进和导航手段的加强，使其能在低空和超低空飞行，因此防御低空入侵己成重
要问题，由此要求机载雷达，包括预警机雷达和机载火控雷达具有下视能力，即要
求能在强 的地杂波背景中发现微弱的目标信号，所以现代的预警机雷达和机载火控
雷达皆采用PD体制。脉冲多普勒雷达包含了连续波雷达和脉冲雷达两方面的优点，
它具有较高的速度分辨能力，从而可以更有效地解决抑制极强的地杂波干扰问题;此
外，脉冲多普勒雷达能够同时敏感地测定距离和速度信息;能够利用多普勒处理技术
实现高分辨率的合成孔径图像 ;而且亦具有良好的抗消极干扰能力和抗积极干扰能
力。
本文介绍了脉冲多普勒雷达测速的原理，信号处理。并用matlab简单的仿真了
雷达系统对信号的处理.
关键词：脉冲多普勒雷达 恒虚警 脉冲压缩 线性调频
Abstact
Pulse Doppler (PD) radar is famous for it`s outsdanding clutter suppression.Modern
aircraft`s function and GPS has been strengthen.now.it makes the aircraft can fly lower
and lower.So.nowadays,Defensing.Low altitude invasion has been an important
problem.so we require airborne radar. Early warning radar and airborne fire control radar
have the ability to look down.That is to say.The radar is be required the ability to find
Weak target signal in the strong Groung clutter.So .The modern airborne early warning
radar and airborne fire control radar use the PD system.Pulse Doppler (PD) radar
concludes two adervantages of Continuous wave radar and impulse radar.It has a higher
velocity resolution.thus it can effectively .soveing the problem of strong ground
clutter.what`s more.Pulse Dppler (PD) radar can Sensitive text the Distance and speed
on the same time.Itcan use Doppler processing technology to realise Synthetic aperture
images with high resolution.
This article sinply introduced principle of pulse Doppler radar and signal
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2022-07-10
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