[1]赵 丹,黄 敏,费海凤.星载AIS/ADS-B一体化接收系统碰撞信号分离算法[J].南京理工大学学报(自然科学版),2020,44(06):683-688.[doi:10.14177/j.cnki.32-1397n.2020.44.06.007]
　Zhao Dan,Huang Min,Fei Haifeng.Collided signal separation algorithm for satellite-basedAIS/ADS-B integrated receiving system[J].Journal of Nanjing University of Science and Technology,2020,44(06):683-688.[doi:10.14177/j.cnki.32-1397n.2020.44.06.007]
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星载AIS/ADS-B一体化接收系统碰撞信号分离算法()
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《南京理工大学学报》（自然科学版）[ISSN:1005-9830/CN:32-1397/N]

卷:
44卷
期数:
2020年06期
页码:
683-688
栏目:
出版日期:
2020-12-31

文章信息/Info

Title:
Collided signal separation algorithm for satellite-basedAIS/ADS-B integrated receiving system
文章编号:
1005-9830(2020)06-0683-06
作者:
赵 丹1; 黄 敏2; 费海凤2
1.南京理工大学紫金学院 电子工程与光电技术学院,江苏 南京 210023; 2.南京理工大学 电子工程与光电技术学院,江苏 南京 210094
Author(s):
Zhao Dan1; Huang Min2; Fei Haifeng2
1.School of Electronic Engineering and Optoelectronic Technology,Nanjing University of Science andTechnology Zijin College,Nanjing 210023,China; 2.School of Electronic and Optical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China
关键词:
星载自动识别;  自动识别系统;  广播式自动相关监视;  碰撞信号分离;  海森矩阵;  双循环递归
Keywords:
satellite-based automatic identification;  automatic identification system;  automatic dependent surveillance-broadcast;  collided signal separation;  Hessian matrix;  two-loop recursion
分类号:
V443
DOI:
10.14177/j.cnki.32-1397n.2020.44.06.007
摘要:
针对星载自动识别系统(AIS)/广播式自动相关监视(ADS-B)一体化接收系统因信号时隙碰撞而严重影响解调正确性的问题,提出一种基于海森矩阵预估计的碰撞信号分离算法。该算法根据多通道碰撞分离模型对目标函数的海森矩阵进行预估计,利用有限内存BFGS(L-BFGS)双循环递归法更新搜索方向,最终得到分离矩阵并估计出原信号。仿真结果表明该算法能够加速目标函数寻优收敛,实现碰撞信号的高效分离。
Abstract:
To solve the problem of demodulation correctness affected by signal time-slot collision for satellite-based automatic identification system(AIS)and automatic dependent surveillance-broadcast(ADS-B)integrated receiving system,a collided signal separation algorithm based on Hessian matrix pre-estimation is proposed. The algorithm pre-estimates the Hessian matrix according to the multi-channel collided signal separation model,and then uses limited-memory Broyden-Fletcher-Goldfarb-Shanno(L-BFGS)two-loop recursion to update the search direction. Finally,the separation matrix is obtained and the signal sources are estimated. The simulation results show that the proposed algorithm accelerates the optimal convergence of the objective function,and realizes the separation of the collided signals efficiently.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2020-09-14 修回日期:2020-11-17
作者简介:赵丹(1982-),女,讲师,主要研究方向:无线通信、数字信号处理,E-mail:mirrorzd@163.com。
引文格式:赵丹,黄敏,费海凤. 星载AIS/ADS-B一体化接收系统碰撞信号分离算法[J]. 南京理工大学学报,2020,44(6):683-688.
投稿网址:http://zrxuebao.njust.edu.cn
更新日期/Last Update: 2020-12-30