摘要
便携式频谱仪多用于野外室外的测量,要求频谱仪具有实时性、便携性、快速性等特点。文中利用Zedboard开发板的FPGA+ARM的架构平台,以ADI公司的FMCOMMS1子板作为信号采集的前端,实现了基于嵌入式软件平台的开发。利用Xilinx的新平台ZYNQ的可编程逻辑PL部分完成了AD9364 IP核的设计,PS部分通过AXI总线以DMA的方式读取数据,数据吞吐率高达1 200 MB/s,提高了信号的处理速度,增加了系统的灵活性,使得便携式频谱仪具有低功耗、低成本、体积小、集成度高等优势,用途更加广泛。
A portable spectrum analyzer for real - time outdoor measurement is proposed on the Zedboard plat- form which contains FPGA and ARM in one chip with the ADI FMCOMMS1 board as the front - end of signal acquisition, and its embedded software development platform is developed. We make use of the programmable logic of the new Xilinx ZYNQ platform to design of AD9364 IP core, with PS data read through the AXI bus by the method of DMA at a throughput up to 1200MB/s, thus improving the signal processing speed and increasing the flexibility of the system. As a result, the portable spectrometer has low power consumption, low cost, small size and high integration.
出处
《电子科技》
2017年第7期139-141,145,共4页
Electronic Science and Technology
