downlink beam meaning in Chinese

下行线波束

We also present a low - complexity general channel simulation model for both transmitter diversity case and downlink beam - forming case . finally , we implemented the mimo channel model by dsp , introduced the software and hardware platforms of the channel simulator
最后,用dsp对所建立的多入多出信道模型进行了模拟实现,并介绍了整个硬件电路板的整体结构,给出了信道模拟器的软件实现过程。
Smart antenna has two critical tasks , one is to filter the uplink signals , and the other is to form the downlink beam , and we need adaptive algorithm and digital signal processing ( dsp ) technology to fulfill these work . adaptive algorithm is one of the most important technologies of smart antenna , and it determines smart antenna ' s speed to the wanted to signal and the complexity of the circuit of the communication system
自适应算法是智能天线的核心技术之一,它决定着智能天线对来波信号响应的速率和系统实现电路的复杂程度,系统需要针对各种通信环境来选择合适的算法,也可以采用算法分集的方法来使整个系统工作在最佳状态。