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机构地区:[1]中国科学技术大学个人通信与扩频实验室,安徽合肥230027
出 处:《兵工学报》2004年第1期41-45,共5页Acta Armamentarii
基 金:国家"973"基金资助项目 (G19980 3 0 40 8)
摘 要:数字波束形成 (DBF)技术大大地提高了军事通信系统的性能 ,然而 ,如果在通信波束的方向上受到强方向性干扰 ,这种干扰将严重地影响通信的质量。为此 ,本文提出了一种新的基于跳波束(BH)的军事通信方式。平均信干噪声比 (SINR)性能的分析结果表明 ,相比传统的单波束 (SB)与多波束 (MB)通信方式 ,这种新的跳波束通信方式能够在充分地利用通信双方的波束方向性增益的同时 ,有效地对抗强方向性干扰 ,并具有一定的抗截获能力 。Digital beamforming (DBF) techniques significantly improve the performance of military communications systems. However, if the communication is strongly jammed in the direction of the transmitted beam, the directional jamming will severely degrade the performance of the systems. In order to solve this problem, the paper proposes a novel beam hopping (BH) military communications scheme. Results of analysis in the average SINR performance show that compared with the conventional single beam (SB) and multi-beams (MB) communication schemes, the new beam hopping communication scheme is capable of efficiently combating the directional jamming and fully utilizing the directional gain of the beams of transmitters and receivers. Moreover, the new BH scheme can let down the intercept probability of communication in a degree. Therefore, it is a promising military communications scheme with a good performance-cost trade-off.
关 键 词:数字波束形成 DBF 军事通信 跳波束 干扰 抗截获
分 类 号:TN911[电子电信—通信与信息系统]
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