计算机应用与软件2025，Vol.42Issue(6)：65-71,118,8.DOI:10.3969/j.issn.1000-386x.2025.06.009
基于可编程电路的射电望远镜互相关计算加速设计
ACCELERATION DESIGN OF CROSS-CORRELATION COMPUTATION FOR RADIO TELESCOPE BASED ON PROGRAMMABLE CIRCULT
摘要
Abstract
The world's largest square kilometer array telescope under construction uses radio interferometry to enhance astronomical data.As the size of the antenna array node increases,the extreme complexity of interference increases squarely.Arrays are deployed in remote mountains and deserts,and existing software-based processing methods struggle to meet energy-efficiency constraints.Aimed at this problem,an efficient cross-correlation calculation acceleration method based on field programmable gate array is proposed.A hierarchical structure was proposed,which could achieve multi-level parallelism in processing quantized data.A structured optimization method for multi-channel segmentation in the temporal window dimension was proposed.A data storage optimization method based on streaming structure was proposed.The test results show that the proposed cross-correlation calculation acceleration method achieves a high throughput rate of 42.76 GFLOPS and a high energy consumption ratio of 7.07 GOP/S/W.关键词
FPGA/互相关计算/并行加速/高层次综合/结构优化Key words
FPGA/Cross-correlation/Parallel acceleration/High level synthesis/Structure optimization分类
信息技术与安全科学引用本文复制引用
姜宇威,祝永新..基于可编程电路的射电望远镜互相关计算加速设计[J].计算机应用与软件,2025,42(6):65-71,118,8.基金项目
国家平方公里阵列射电望远镜(SKA)专项课题(2020SKA0120202) （SKA）
国家自然科学基金大科学装置联合基金项目(U2032125). （U2032125）
