一种用于双通道跳频技术的时间调制阵列系统  

Time modulated array system for dual-channel frequency hopping technology

作　　者：曹岸杰[1,2] 贺冲[1] 梁仙灵[1] 耿军平[1] 金荣洪[1] 

机构地区：[1]上海交通大学电子工程系,上海200240 [2]上海卫星工程研究所,上海200240

出　　处：《电波科学学报》2014年第6期1076-1080,1121,共6页Chinese Journal of Radio Science

基　　金：国家重大专项(2011ZX03001-007-03);国家自然科学基金(61201058);上海市教育委员会科研创新项目(12Z112030001);教育部留学回国人员科研启动基金;SMC-晨星优秀青年教师计划

摘　　要：基于波束形成理论和时间调制阵列天线理论,围绕着规避噪声、干扰或者多用户情况下非重复的通道,提出了一种适用于跳频技术的时间调制阵列系统,通过控制天线阵列单元的工作状态对信号进行调制.在将第一边带的波束对准于目标方向的同时,在射频端对载频进行迁移,从而达到跳频通信的目的.仿真结果表明:该时间调制阵列系统在较低运算开销下实现了预期波束指向和实时载频迁移.此外,通过利用天线单元控制时序中的未使用间隙,系统被扩展为独立工作的双通道天线系统,并提供了时序冲突时的解决策略和实验证明.Based on the theory of beam forming and time modulated array, this paper proposes a time modulated antenna array system, which mainly concentrates on avoiding noise and interference, creating independent channels for multiple users. By controlling the on-off state of the radio frequency（RF） switches, the working state of each antenna element is to be changed and signals will be modulated by the antenna array system. Then, the system can receive the power of first harmonic component from the desired direction, therefore if carrier frequency is shifted further in RF end, frequency hopping communication can be carried out. Simulation results show that the system realizes the expected beam direction and real-time frequency hopping with low cost. In addition, the antenna array system is applied to dual-independent channel by making use of the inter- val between the controlling sequences, and the solution for the sequence jam is also giv- en and proved.

关 键 词：时间调制天线阵列 跳频通信 双通道 

分 类 号：TN820[电子电信—信息与通信工程]