中国空间科学技术

中国空间科学技术 ›› 2026, Vol. 46 ›› Issue (5): 75-85.doi: 10.16708/j.cnki.1000-758X.2026.0078

• 数学与航天专题 • 上一篇    下一篇

星载相控阵自适应抗干扰接收波束设计

赵家敏1，王显煜1,*，洪玺2，王越3   

  1. 1.中国空间技术研究院西安分院空间微波通信全国重点实验室，西安710100
    2.西安交通大学，西安710049
    3.西安华为技术有限公司，西安710061
  • 收稿日期:2025-10-17 修回日期:2025-12-03 录用日期:2026-01-09 发布日期:2026-09-23 出版日期:2026-09-30

Adaptive anti-jamming receive beam design for spaceborne phased array antennas

ZHAO Jiamin1，WANG Xianyu1,*，HONG Xi2，WANG Yue3   

  1. 1.National Key Laboratory of Science and Technology on Space Microwave，China Academy of Space Technology (Xi'an)，Xi'an 710000，China
    2.Xi'an Jiaotong University，Xi'an 710049，China
    3.Xi'an Huawei Technologies Co.，Ltd.，Xi'an 710061，China
  • Received:2025-10-17 Revision received:2025-12-03 Accepted:2026-01-09 Online:2026-09-23 Published:2026-09-30

PDF (PC)

22

摘要： 数据链终端与卫星协同构建的空天信息网络架构可有效扩展通信覆盖。针对数据链多用户灵活接入及通信网络抗毁顽存要求，开展星载相控阵空域抗干扰技术研究，并提出一种联合功率倒置和解重扩处理的自适应波束迭代算法。首先采用功率倒置法对大功率压制性干扰进行抑制，保证接收机可以进行接收同步；然后通过解重扩处理获取时延、频偏等粗同步信息，完成本地参考信号构建；再引入串行干扰对消处理，去除接收阵列信号中用户多址干扰的影响，从而最小化波束形成权值与信号实际入射导向矢量之间的误差；最后通过二阶LMS迭代实现自适应抗干扰波束权值快速稳健迭代。以6元均匀线阵、强干扰、多用户入射场景为例进行仿真验证，结果表明，提出算法输出信干噪比提升接近理论增益值，明显优于已有算法性能。通过对比验证可得，提出的自适应抗干扰接收波束设计算法不仅可保证强干扰入射下的可靠接收，还可有效对抗用户间多址干扰及系统频偏估计误差的影响，实时自适应地迭代更新空域多用户波束权值，具有更优的抗干扰多用户接收性能，充分满足空天信息网络抗毁顽存、动态适变的需求。

关键词: 星载相控阵天线, 空域抗干扰, 多址干扰, 多普勒效应, 自适应波束形成

Abstract: The aerospace information network architecture jointly constructed by data link terminals and satellites can effectively expand communication coverage. In order to meet the requirements of multi-user flexible access and anti-destruct and endurance of data link communication networks, the spaceborne phased array spatial anti-jamming technology is studied, and an adaptive beam iterative algorithm combined with power inversion algorithm and despread respread algorithm is proposed. Firstly, the power inversion method is used to suppress the high-power suppressive interference , ensuring the receiver can achieve reception synchronization; Then, the coarse synchronization information such as time delay and frequency offset is obtained through despread respread processing, so that the local reference signal is constructed; After that, serial interference cancellation is introduced to eliminate the impact of user multiple access interference in the received array signals, thereby minimizing the error between the beamforming weights and the actual incident steering vector of the signal; Finally, the adaptive anti-jamming beam weights are fast and robust iterated through the second-order least mean square (LMS) iteration. Simulation verification was carried out under the scenario of a 6-element uniform linear array (ULA), strong interference and multi-user incidence. The results show that the output signal-to-interference-plus-noise ratio (SINR) improvement of the proposed algorithm is close to the theoretical gain value, which is significantly better than the performance of the existing algorithms. Through comparison, the proposed adaptive anti-jamming receiving beam design algorithm can not only ensure reliable reception under strong interference incidence, but also effectively resist the impacts of multiple access interference and system frequency offset estimation errors. It can iteratively update the spatial multi-user beam weights in real-time and adaptively, exhibiting superior anti-jamming multi-user reception performance, which fully meets the anti-destruct and dynamic adaptive requirements of aerospace information network.

Key words: spaceborne phased array antennas, spatial anti-jamming, multiple access interference, Doppler effect, adaptive beamforming