DOI:10.19392/j.cnki.1671-7341.202318001雷达信号增强系统设计及开发徐航1,2杨涛1,2*于子良3刘帅1,2李彧磊1,2叶疆1,2余杰1,21.资源与生态环境地质湖北省重点实验室(湖北省地质局)湖北武汉430000;2.湖北省地质环境总站湖北武汉430000;3.中国地质大学(武汉)自动化学院湖北武汉430000摘要:合成孔径雷达干涉(InterferometricSyntheticApertureRadar,InSAR)技术作为地质灾害变形监测的有力手段近年来逐渐被广泛应用。InSAR技术的实现离不开相干性好的地面控制点,以消除大气等环境因素和地形对干涉测量产生的误差。本文为满足InSAR技术对地面控制点的定位精度要求,调研了不同波段哨兵卫星传感器发射电磁波的特性,研究开发了雷达信号增强系统,并开展了室内测试与室外验证工作,结果表明雷达信号增强系统可增强雷达后向反射信号,从而辅助雷达影像定标、配准。关键词:InSAR;地面控制点;雷达信号增强系统;配准DesignandDevelopmentofRadarSignalEnhancementSystemXuHang1,2YangTao1,2*YuZiliang3LiuShuai1,2LiYulei1,2*YeJiang1,2YuJie1,21.HubeiKeyLaboratoryofResourcesandEco-environmentGeology(HubeiGeologicalBureau)HubeiWuhan430000;2.HubeiGeologicalEnvironmentStationHubeiWuhan430000;3.SchoolofAutomation,ChinaUniversityofGeosciencesHubeiWuhan430000Abstract:InterferometricSyntheticApertureRadar(InSAR)technologyhasbeenwidelyusedasapowerfulmeansforgeolog-icaldisasterdeformationmonitoringinrecentyears.TherealizationofInSARtechnologyisinseparablefromthegroundcontrolpointswithgoodcoherencetoeliminatetheerrorscausedbyenvironmentalfactorssuchastheatmosphereandterrainoninterfer-ometry.InordertomeetthepositioningaccuracyrequirementsofInSARtechnologyforgroundcontrolpoints,thispaperinvestigatesthecharacteristicsofelectromagneticwavesemittedbysentinelsatellitesensorsindifferentbands,researchesanddevelopsradarsig-nalenhancementsystems,andcarriesoutindoortestingandoutdoorverification,andtheresultsshowthattheradarsignalenhance-mentsystemcanenhancetheradarbackwardreflectionsignal,therebyassistingradarimagecalibrationandregistration.Keywords:InSAR;groundontrolpoints;radarsignalenhancementsystem;RegistrationInSAR技术[1...