OFDM载波聚合与认知跳频联合宽带抗干扰技术  

Broadband Anti-Jamming Technology Based on OFDM Carrier Aggregation and Cognitive Frequency Hopping

作　　者：黄莉[1] 熊春林 HUANG Li;XIONG Chunlin(China Air-to-Air Missile Research Institute,Luoyang,Henan 471009,China;Changsha Jingjia Microelectronics Co.,Ltd.,Changsha,Hunan 410205,China)

机构地区：[1]中国空空导弹研究院,河南洛阳471009 [2]长沙景嘉微电子股份有限公司,湖南长沙410205

出　　处：《自动化应用》2025年第6期116-120,124,共6页Automation Application

摘　　要：针对军用通信系统中跳频宽带传输系统存在的“盲跳”和由复杂多变战场干扰导致频谱碎片化的问题,提出一种正交频分复用(OFDM)载波聚合与认知跳频联合宽带抗干扰技术。该技术将频谱认知技术、跳频技术、载波聚合技术和OFDM通信体制进行了结合。通过频谱感知探测工作频带内的信道质量,并对感知结果进行认知决策,生成跳频图案和带内子载波聚合策略,以规避干扰,从而实现通信系统可靠传输。仿真结果表明,OFDM载波聚合与认知跳频联合宽带抗干扰技术具有较好的抗干扰性能,特别是抗宽频带干扰性能。In order to solve the problem of spectrum fragmentation caused by"blind hopping"and complex and changeable battlefield interference in the broadband transmission system of frequency hopping in military communication systems,a combined broadband anti-jamming technology of Orthogonal Frequency Division Multiplexing(OFDM)carrier aggregation and cognitive frequency hopping was proposed.This technology combines spectrum cognition technology,frequency hopping technology,carrier aggregation technology and OFDM communication system to detect the channel quality in the working frequency band through spectrum sensing,and make cognitive decisions on the perception results,generate frequency hopping patterns and in-band subcarrier aggregation strategies to avoid interference and realize reliable transmission of communication systems.The simulation results show that the OFDM carrier aggregation and cognitive frequency hopping combined wideband antijamming technology has better anti-jamming performance,especially the anti-wideband jamming performance is more significant.

关 键 词：军用通信系统 正交频分复用 载波聚合 跳频 频谱认知 宽带抗干扰 

分 类 号：TN973.3[电子电信—信号与信息处理]