西安电子科技大学学报 ›› 2020, Vol. 47 ›› Issue (3): 121-127.doi: 10.19665/j.issn1001-2400.2020.03.017

• • 上一篇    下一篇

双极化卫星MP-WFRFT星座裂变安全传输技术

王浩波1,达新宇2,徐瑞阳1,梁源3,倪磊1,张宏伟1   

  1. 1.空军工程大学 研究生院,陕西 西安 710077
    2.阳光学院 人工智能学院,福建 福州 350015
    3.空军工程大学 航空工程学院,陕西 西安 710038
  • 收稿日期:2019-07-16 出版日期:2020-06-20 发布日期:2020-06-19
  • 作者简介:王浩波(1994—),男,空军工程大学硕士研究生,E-mail: whbwhnkgd@163.com
  • 基金资助:
    国家自然科学基金(61571460);博士后创新人才计划(BX201700108);陕西省自然科学基金(2018JQ6042)

Constellation splitting security transmission technology based on the multi-parameter weighted-type fractional Fourier transform for dual-polarized satellites

WANG Haobo1,DA Xinyu2,XU Ruiyang1,LIANG Yuan3,NI Lei1,ZHANG Hongwei1   

  1. 1. Graduate School, Air Force Engineering University, Xi’an 710077, China
    2. College of Artificial Intelligence, Yango University, Fuzhou 350015, China
    3. Aeronautics Engineering College, Air Force Engineering University, Xi’an 710038, China
  • Received:2019-07-16 Online:2020-06-20 Published:2020-06-19

摘要:

为了提升双极化卫星的安全传输性能,结合多参加权分数傅里叶变换提出星座裂变安全传输系统。通过研究信号的时频项特点,搭建了星座裂变函数,并使用遗传算法对其进行优化求解,重点探索多参加权分数傅里叶变换在二维平面和三维球面星座图裂变规律。通过仿真分析,表明多参加权分数傅里叶变换时域项比值决定了星座裂变样式,通过设置不同的时域项比值约束可以实现传输信号的伪装,从而防止窃听方获取正确的信息;变换参数的误差能提高安全性能,误差越大,系统安全容量越高,从而验证了所提方案的合理性与有效性。

关键词: 多参加权分数傅里叶变换, 极化调制, 星座裂变, 安全容量

Abstract:

In order to improve the security transmission performance of dual-polarized satellites, a constellation splitting security transmission system based on the multi-parameter weighted-type Fractional Fourier Transform (MP-WFRFT) is proposed. By analyzing the time-frequency characteristics of signals, the constellation splitting function is constructed and solved by the Genetic Algorithm (GA). The constellation splitting criteria of the MP-WFRFT in the two-dimensional surface and three-dimensional sphere are mainly explored. Simulation results show that the splitting pattern is determined by the ratio of time-domain terms on the MP-WFRFT and the transmitting signal can be camouflaged by setting different time-domain terms ratio constrains to prevent the eavesdropper from acquiring the correct message. The error in the transform parameter can improve the security performance. The larger the parameter error of the MP-WFRFT is, the higher secrecy capacity can be achieved, which verifies the rationality and effectiveness of the proposed scheme.

Key words: multi-parameter weighted-type fractional Fourier transform, polarization modulation, constellation splitting, secrecy capacity

中图分类号: 

  • TN911.7