本文提出了一種用于雷達回波信號采集的高速數(shù)據(jù)采集系統(tǒng)。該系統(tǒng)實現(xiàn)了對數(shù)十兆赫的回波信號進行連續(xù)的采樣和存儲。系統(tǒng)通過FPGA控制數(shù)據(jù)連續(xù)采集、緩沖，通過PCI9056將緩沖區(qū)數(shù)據(jù)轉移到硬盤管理卡，由硬盤管理卡將數(shù)據(jù)存入海量硬盤陣列。
關鍵字：采樣門 FPGA PCI總線連續(xù)采集
Abstract:This paper describes a FPGA-based high-speed data acquisition system, which can support radar echo signal acquisition application. This system can acquire high-speed echo single with frequency up to several hundred thousands Hz and store these data continuously. We use FPGA to control data acquiring and data buffering, and transfer those buffered data to the Hard Disk master card. Through the Hard Disk master card, we store the data to the Hard Disk array.
Keywords:sampling gate; FPGA; PCI bus; continuous data acquisition