基于频谱监测技术的“低慢小”无人机探测定位系统设计

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中图分类号：TN98-34 文献标识码：A 文章编号：1004-373X（2025）15-0011-07

Design of low-slow-small UAV detection and positioning system based on spectrum monitoring technology

WANGYitian’，LIJianhua²，WANZhengqi1 （1.Graduate School，ChinesePeople'sPoliceUniversity，Langfang O65ooo，China; 2.School of Police Equipment Technology，ChinesePeople'sPoliceUniversity，Langfang O65ooo， China）

Abstract：This paperfocusesonthedetectionand positioning technologyofthesignalsoflow-altitudeillegalflyinglow-slowsmallUAVinurbanenvironment.Itaimsatsolvingthekeyproblemssuchaslimitedearlywarningrangeandinaccurate positioning inthecurrntUAVcountermeasuresystem.Itprimarilyincludeshigh-sensitivitydetectionbasedoncollborative spectrumsensingandhigh-precisiontimediferenceestimationbasedonsignalreconstruction.Onthis basis，aprototype system suitableforcomplexurbaneironmentiseveloped，whichrealiesall-weathrandfullytomaticetectiondentificationad trajectorytrackingofillgalflyinglow-altitudeUAVs.Aftertesting，thesystemcanpositiontheUAVaccurately，withthe maximumpositioningdistanceof5km.Ithastheabilitytoidentifythecommonlyusedmodelsinthemarket，whichprovides strong support forcountermeasures and strikes.Theresearchresults provide importanttechnical support and practical value for improving the safety of urban low-altitude airspace.

Keywords：UAV countermeasure; spectrum monitoring; TDOA; UAV signal; positioning; cooperative spectrum sensing

0 引言

无人机反制的必要性体现在多方面，随着无人机技术的快速发展，无人机的使用范围逐渐扩大，但与此同时，黑飞无人机问题也日益严重。（剩余8163字）