基于ROACH2的数字终端实验平台搭建  

The Construction of Digital Backend Experiment Platform Based on ROACH2

作　　者：张萌[1,2] 张海龙 王杰[1] 李健 托乎提努尔[1] Zhang Meng;Zhang Hailong;Wang Jie;Li Jian;Tohtonur(Xinjiang Astronomical Observatory,Chinese Academy of Sciences,Urumqi 830011,China;University of Chinese Academy of Sciences,Beijing 100049,China;Key Laboratory of Radio Astronomy,Chinese Academy of Sciences,Nanjing 210008,China)

机构地区：[1]中国科学院新疆天文台,新疆乌鲁木齐830011 [2]中国科学院大学,北京100049 [3]中国科学院射电天文重点实验室,江苏南京210008

出　　处：《天文研究与技术》2020年第2期244-251,共8页Astronomical Research & Technology

基　　金：国家自然科学基金(11873082,11803080);国家重点研发计划(2018YFA0404704);中国科学院青年创新促进会;中国科学院天文台站设备更新及重大仪器设备运行专项经费资助.

摘　　要：面向天文信号实时处理的需求,搭建了基于ROACH2的射电天文数字终端实验平台.利用MATLAB,Xilinx等开发环境进行仿真,取得了原始实验数据;利用CASPER硬件平台实现了信号控制和预处理,并通过高速以太网将数据包传输至计算服务器进行后处理.搭建的实验平台实现了仿真、编译、运行的完整流程,为天文信号实时处理研究提供了良好的实验环境.An experimental platform of radio astronomy digital backend based on ROACH2 was built for the real-time processing requirements of astronomical signals.Using MATLAB,Xilinx and other development environments to simulate the process of astronomical signals,and the raw data were obtained;the signal control and pre-processing were realized by CASPER hardware platform,and the data packet was transmitted to the computing server through high-speed Ethernet for post-processing.The experimental platform has realized the complete process of simulation,compilation and operation,and provided a good experimental environment for the real-time processing of astronomical signals.

关 键 词：数字终端 ROACH2 实验平台 CASPER 

分 类 号：P111.44[天文地球—天文学]