通信学报2024，Vol.45Issue(3)：29-40,12.DOI:10.11959/j.issn.1000-436x.2024048
基于DSmT证据折扣理论的短波多通道信息融合方法
Shortwave multichannel information fusion method based on DSmT evidence discount theory
摘要
Abstract
In response to the problem of poor performance of classical fusion methods in combining multiple shortwave channel information due to the complexity and harshness of shortwave channels and prominent conflicts among channel in-formation,a shortwave multi-channel information fusion method based on the DSmT evidence discounting theory was pro-posed.The DSmT evidence discounting theory was employed as the fusion framework to achieve fusion,inference,and de-cision-making of multiple shortwave channel information.Firstly,the relative envelope standard deviation of the OFDM frame was normalized,and the discount weight was calculated through the relative envelope standard deviation and the dis-count factor.Then,the bit soft information extraction function was used to obtain the bit probability,which was quantita-tively assigned to the basic belief assignment function as evidence.Finally,the PCR6 fusion rule was ap-plied to fuse,infer,and make decisions on the soft information from multiple channels.Simulation experiments compar-ing the proposed method with classical fusion methods under various channel conditions and modulation schemes indi-cate significant gains in bit error rate and packet error.关键词
短波信道/信息融合/证据折扣理论/折扣权重/比特概率Key words
shortwave channel/information fusion/evidence discount theory/discount weight/probability of bit分类
信息技术与安全科学引用本文复制引用
李俊兵,曾孝平,李国军,叶昌荣..基于DSmT证据折扣理论的短波多通道信息融合方法[J].通信学报,2024,45(3):29-40,12.基金项目
国家自然科学基金资助项目(No.U21A20448,No.U22A2006,No.62201106) （No.U21A20448,No.U22A2006,No.62201106）
重庆市自然科学基金资助项目(No.cstc2021ycjh-bgzxm0072,No.CSTB2023NS CQ-LZX0082) The National Natural Science Foundation of China(No.U21A20448,No.U22A2006,No.62201106),The Natural Science Foundation of Chongqing(No.cstc2021ycjh-bgzxm0072,No.CSTB2023NS CQ-LZX0082) （No.cstc2021ycjh-bgzxm0072,No.CSTB2023NS CQ-LZX0082）
