摘要
相控阵短波发信系统通过波束合成手段能够实现通信的实时性和按需可控,并且提高通信的稳定性和抗毁性,满足各种条件下的通信要求。提出了相控阵短波发信系统相位校正方案,并且将整个校正过程分为相位控制和交换两个模块。通过对相位控制模块中AD采样、下变频和相位计算的具体设计以及交换模块中DSP和FPGA的具体设计实现了系统的相位校正。最后对仿真数据和实测数据进行比较,验证了本相位校正方案的可行性。
By beam-forming means, phased array shortwave transmitting system could realize real-time communication and on-demand control, improve communication stability and survivability, and meet the communication requirement in various conditions. The phase correction scheme of phased array shortwave transmitting system is proposed, and the whole correction process is divided into two modules, i. e. , phase control and phase exchange. Through the design of AD sampling, down-conversion and phase calculation in phase control module, and the specific design of FPGA and DSP in exchange module, the phase correction of system could be realized. Finally, the comparison of simulation data and testing data indicates the feasibility of this phase correction scheme.
出处
《通信技术》
2015年第10期1129-1133,共5页
Communications Technology
关键词
相控阵
短波通信
波束合成
相位控制
phased array
shortwave communication
beam-forming
phase control
