脉冲多普勒雷达测速仿真任务书雷达进行PD测速主要是利用了目标回波中携带的多普勒信息，在频域实现目标和杂波的分离，它可以把位于特定距离上、具有特定多普勒频移的目标回波检测出来，而把其他的杂波和干扰滤除。因此要求雷达必须具备很强的抑制杂波的能力，能在较强的杂波背景中分辨出运动目标的回波。如今，不管是在军用还是民用上，雷达都在发挥着它很早重要的作用，与早期雷达采用距离微分方法测速相比，基于脉冲多普勒理论的雷达测速技术具有实时性好、精度高等优点。特别是现代相控阵技术在雷达领域的应用，实现了波束的无惯性扫描和工作方式的快速切换，更便于应用脉冲多普勒技术进行雷达测速。本篇课程设计目的在于介绍脉冲多普勒雷达测速的原理，并对这种技术进行介绍和仿真。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AbstactPulseDoppler(PD)radarisfamousforit`soutsdandingcluttersuppression.Modernaircraft`sfunctionandGPShasbeenstrengthen.now.itmakestheaircraftcanflylowerandlower.So.nowadays,Defensing.Lowaltitudeinvasionhasbeenanimportantproblem.sowerequireairborneradar.Earlywarningradarandairbornefirecontrolradarhavetheabilitytolookdown.Thatistosay.TheradarisberequiredtheabilitytofindWeaktargetsignalinthestrongGroungclutter.So.ThemodernairborneearlywarningradarandairbornefirecontrolradarusethePDsystem.PulseDoppler(PD)radarconcludestwoadervantagesofContinuouswaveradarandimpulseradar.Ithasahighervelocityresolution.thusitcaneffectively.soveingtheproblemofstronggroundclutter.what`smore.PulseDppler(PD)radarcanSensitivetexttheDistanceandspeedonthesametime.ItcanuseDopplerprocessingtechnologytorealiseSyntheticapertureimageswithhighresolution.ThisarticlesinplyintroducedprincipleofpulseDopplerradarandsignal脉冲多普勒雷达测速仿真processing.UsingmatlabtosimulationThesignalprocessingofradarsystem.Linearfrequencymodulation.Keywords:PulseDoppler(PD)radar.Constantfalsealarmrate.pulsecompression.脉冲多普勒雷达测速仿真目录一．脉冲多普雷达简介··········································11,多普勒效应··············································1二、多普勒测速原理············································2三、多普勒雷达简介············································4四、多普勒雷达工作原理········································6五、PD雷达信号处理仿真·······································85.1、正交双通道处理·······································95.2、脉冲压缩·············································105.3、线性调频信号...
