天基电磁环境感知星座关键技术与发展演进OA

The electromagnetic environment serves as the fundamental medium for radio wave propagation and profoundly influences the operational efficiency of global information infrastructure systems,including communications,navigation,and security.The research focused on electromagnetic environment sensing constellations developed within the commercial spaceflight sector and summarized the evolutionary development of electromagnetic environment sensing constellations through three major phases:the military electromagnetic reconnaissance-dominated era,the stage of global collaborative competition,and the phase of commercial and national co-leadership with coordinated development.Representative constellations and their functional characteristics were outlined for each phase.Current in-orbit constellations were categorized into four primary types-propagation environment sensing,broadband radio frequency signal sensing,typical operational signal sensing,and electromagnetic environment integrated sensing-and their functional characteristics,core capabilities,key technologies,and application scenarios were analyzed.Ongoing development trends are identified in commercial space-based electromagnetic environment sensing toward space-ground system integration,multi-satellite network collaboration,multimodal fusion,and real-time artificial intelligence integration.