频谱共生干扰主动抑制技术研究  

Research on the active cancellation technology of spectrum symbiotic interference

作　　者：郭文博 林朗 赵宏志[1] 唐友喜[1] Wenbo GUO;Lang LIN;Hongzhi ZHAO;Youxi TANG(National Key Laboratory of Science and Technology on Communications,University of Electronic Science and Technology of China,Chengdu 611731,China)

机构地区：[1]电子科技大学通信抗干扰技术国家级重点实验室,成都611731

出　　处：《中国科学：信息科学》2022年第10期1915-1928,共14页Scientia Sinica(Informationis)

基　　金：国家重点研发计划(批准号:254);国家自然科学基金(批准号:U19B2014,61771107,62071094,61701075,61601064,61531009);四川省科技项目(批准号:2020YFH0101)资助。

摘　　要：针对频谱共生无线通信系统,提出了一种主动式共生干扰抑制架构.在此基础上,以残余接收功率最小化为目标,提出了一种频谱共生干扰的时幅相三维联合抑制算法,其主动利用频谱共生无线通信系统中发射电磁波的信号特征,在时、幅、相3个维度对共生干扰进行调整、重建和抑制.理论和仿真分析表明,所提架构和算法可以将共生干扰抑制到底噪水平,并且具有较低的空间复杂度和时间复杂度.In this article, an active spectrum symbiotic interference(SSI) cancellation architecture is proposed for the spectrum symbiotic wireless communication systems. To minimize the residual reception power, a joint SSI cancellation algorithm based on time-amplitude-phase-three-dimensional search is proposed, which actively utilizes the characteristics of transmitted signals in the spectrum symbiotic wireless communication systems to adjust, reconstruct, and cancel the SSI from the aspects of time, amplitude, and phase. Theoretical and simulation analyses demonstrate that the proposed architecture and algorithm can suppress the SSI to the noise level, exhibiting lower space and time complexity.

关 键 词：频谱共生 干扰抑制 联合搜索 复杂度 残余功率 

分 类 号：TN925[电子电信—通信与信息系统]