基于FPGA的多通道综合孔径辐射计数字相关器

英文篇名：Multi-Channel Digital Correlator for Integrated Aperture Radiometer Based on FPGA
中文刊名：数据采集与处理
英文刊名：Journal of Data Acquisition and Processing
作者：马腾 ; 吴琼之 ; 廖春兰
英文作者：Ma Teng ; Wu Qiongzhi ; Liao Chunlan(School of Information and Electronics ; Beijing Institute of Technology ; Beijing ; 100081 ; China)
中文关键词：数字相关器 ; FGPA ; 综合孔径辐射计
英文关键词：digital correlator ; FPGA ; integrated aperture radiometer
出版日期：2012-01-15
机构：北京理工大学信息与电子学院;
年：2012
期：S1
出版单位：数据采集与处理

摘要

数字相关器是综合孔径辐射计重要的组成部分。针对数字相关器多通道、高速度、大规模的特点,通过实际调试,提出了一种基于FPGA的新型数字相关器设计方法,解决FPGA内部逻辑资源消耗、多片FPGA扩展、高速数据传输、多级流水分发和汇聚等工程应用上的难点。实验结果表明本文设计的数字相关器极大地提高了微波辐射计的运算速度和精度,性能更加稳定。
The digital correlator is an important component of integrated aperture radiometer.Considering the features of multicenter,largescale and high-speed,a new digital correlator is designed based on FPGA.The correlator can solve some problems in project,such as consumption of the internal FPGA logic resource,multi-board synchronization,transferring data at high speed,and pipeline multi-level fan-out or convergence.Experimental result shows that the correlator improves the speed and accuracy of the integrated aperture radiometer,and its performance is more stable than other digital correlators.

引文

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