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面阵系统所采用阵元数多,数据量大,对信号处理机的实时处理能力要求非常高。系统采用基于参考信号的LMS算法,收敛速度较快、运算量低,且易于硬件实现。系统平台采用目前流行的DSP&FPGA架构,具有高速运算和处理能力,解决了面阵系统对实时处理机的苛刻要求。测试结果表明,系统能自适应地控制天线阵列方向图在用户信号方向产生高增益波束,在干扰信号方向产生较深零陷,并实现零误码率通信。
Array array array elements used by the number of large amount of data, the signal processing machine real-time processing capacity requirements are very high. The system adopts LMS algorithm based on reference signal, which has the advantages of fast convergence rate, low computational complexity and easy hardware implementation. System platform using the current popular DSP & FPGA architecture, with high-speed computing and processing capabilities to solve the area array system for real-time processor demanding. The test results show that the system can adaptively control the antenna array pattern to generate high-gain beams in the direction of user signals and generate deep nulls in the direction of interfering signals and achieve zero bit error rate communication.