摘要
设计嵌入式基阵信号接收系统是构建自动测试系统和自动测试设备的基础。传统的基阵信号接收系统采用LXI总线设计,结合自适应波束形成算法实现信号采集和接收,由于阵列信号采集的随机性,导致加权均衡控制效果不好。提出一种基于权重均衡控制的嵌入式基阵信号接收系统设计方法。采用ARM嵌入式CPU为核心构成的系统,通过功率放大器将输出信号进行功率放大,进行波束形成算法那设计。采用TI的专用电源芯片实现系统电源供给,基阵信号的数据实时存储模块选择HPE1562E,数据采集模块选择8通道、垂直精度16位的196.608KSa/Sec/Chan数字化仪HP E1433A,通过权重均衡控制满足各分模块之间联系与控制的需求,提高了系统的功率增益,保证了系统的稳定性。系统设计包括了算法设计和硬件电路设计两部分。仿真结果表明,采用该系统能提高信号传输的鲁棒性,提高了基阵信号的分析和识别能力。
The design of the embedded array signal receiving system is the basis of the construction of automatic test system and automatic test equipment.. Traditional array signal receiving system using LXI bus design, combined with the adaptive beamforming algorithm and the realization of signal collecting and receiving, due to the randomness of the array signal acquisition, resulting in weighted equalization control effect is not good. A design method of embedded array signal receiving system based on weight balanced control is proposed.. Through power amplifier, the output signal power amplifier, which has the required power, using Ti dedicated power supply chips to achieve power supply system. Array signal real-time data storage module selection HP E1562E. Data acquisition module choose 8 channels, vertical accuracy 16 bit 196.608KSa/Sec/Chan digitizer HP E1433A, the by weight equilibrium control can meet the requirement of connection and control between the sub module, improve the power gain of the system, to ensure the stability of the system. System design including the algorithm design and hardware circuit design of two parts. The simulation results show that, using this system can improve the robustness of the transmission signal, array signal analysis and recognition ability is improved.
出处
《科技通报》
北大核心
2016年第2期136-139,144,共5页
Bulletin of Science and Technology
基金
山东省潍坊市科技发展计划项目(项目编号:201301161)
关键词
嵌入式
基阵信号
接收系统
embedded
array signal
receiving system
