摘要
提出和实现了一种智能天线系统的模拟权值乘法器。这种乘法器将智能天线阵接收到的基带信号与模拟权值进行相乘,实现了智能天线的波束形成。其处理速度快,无量化误差,无需数模、模数转换,无需存储空间等外部设备,硬件完全由乘法器芯片和运放芯片组成,模拟电路简单,实现和调试方便。仿真和实验的结果对比表明提出的模拟权值乘法器具有较强的可行性和可靠性。
An analog multiplier of complex weights in smart antenna system is proposed and realized.The multiplier,by multiplying the base-band signals and analog complex weights,achieves beam-forming of smart antenna.For its high processing speed,with no A/D,D/A conversion,quantification error,memory space,and other peripherals,the multiplier is composed of multiplier and amplifier chips,and it has simple analog circuit and is convenient for implementation and debugging.The comparison of simulation and experimental result indicates that the multiplier proposed in the paper is of fairly high feasibility and reliability.
出处
《通信技术》
2010年第10期23-25,共3页
Communications Technology
关键词
智能天线
权值乘法器
信号源
smart antenna
weight multiplier
signal source
