《電子技術(shù)應用》
您所在的位置:首頁 > 其他 > 設計應用 > 高性能數(shù)據(jù)采集系統(tǒng)核心器件國產(chǎn)化水平研究
高性能數(shù)據(jù)采集系統(tǒng)核心器件國產(chǎn)化水平研究
2022年電子技術(shù)應用第5期
趙 前,羅通頂,陳彥麗,王 晶,呂宗璟,李海濤,張雁霞,阮林波
西北核技術(shù)研究所 強脈沖輻射環(huán)境模擬與效應國家重點實驗室,陜西 西安710024
摘要: 高性能數(shù)據(jù)采集系統(tǒng)在高能物理、粒子物理實驗、輻射探測等科學研究中具有廣泛的應用,是許多大科學裝置的關(guān)鍵設備。高性能數(shù)據(jù)采集系統(tǒng)核心器件主要包括ADC和FPGA,國外一些發(fā)達國家在這方面的研究長期處于壟斷地位,高性能的ADC和FPGA是嚴格對我國實施技術(shù)管控的產(chǎn)品,因此研究基于國產(chǎn)化核心器件的高性能數(shù)據(jù)采集系統(tǒng)顯得尤為重要?;诟咝阅軘?shù)據(jù)采集系統(tǒng)的原理,根據(jù)《瓦森納協(xié)議》,梳理了西方國家對我國關(guān)鍵電子元器件以及測試儀器設備的技術(shù)封鎖情況,調(diào)研了國產(chǎn)高性能ADC芯片以及FPGA芯片的設計生產(chǎn)現(xiàn)狀并做了性能比對,同時分析了國內(nèi)外示波器以及數(shù)據(jù)采集儀的現(xiàn)狀并做了性能指標方面的對比,最后討論了關(guān)鍵電子元器件國產(chǎn)化替代思路。
中國分類號: TN6
文獻標識碼: A
DOI:10.16157/j.issn.0258-7998.212068
中文引用格式: 趙前,羅通頂,陳彥麗,等. 高性能數(shù)據(jù)采集系統(tǒng)核心器件國產(chǎn)化水平研究[J].電子技術(shù)應用,2022,48(5):7-11,20.
英文引用格式: Zhao Qian,Luo Tongding,Chen Yanli,et al. Research of data acquisition instrument based on domestic key chip[J]. Application of Electronic Technique,2022,48(5):7-11,20.
Research of data acquisition instrument based on domestic key chip
Zhao Qian,Luo Tongding,Chen Yanli,Wang Jing,Lv Zongjing,Li Haitao,Zhang Yanxia,Ruan Linbo
State Key Lab of Intense Pulsed Radiation Simulation and Effect,Northwest Institute of Nuclear Technology,Xi′an 710024,China
Abstract: The high performance data acquisition system is widely used in scientific research such as high energy physics, particle physics experiment and radiation detection, which is the key equipment of many large scientific experiment. The core devices of data acquisition instrument mainly include ADC and FPGA which are monopolized by developed countries for a long time. Especially high-performance ADC and FPGA, which are strictly relevant to China′s technology contractions, so it’s important to research the high performance data acquisition system based on the core devices of the domestic. The paper sketches the embargo on the equipment of core electronic components and key instruments based on the " Wassenaar Arrangement " and the theory of high performance data acquisition system. This paper researches the production status of the domestic high-performance ADC and FPGA, and makes the performance comparison. After that, the present situation of the oscilloscope and the data acquisition instrument are compared. Finally, the paper discusses the substitution of core electronic components.
Key words : Wassenaar arrangement;data acquisition system;ADC;FPGA

0 引言

    自然界或者人工產(chǎn)生模擬信號,比如聲音、光線、脈沖信號等,這些信號不能直接被數(shù)字系統(tǒng)識別并記錄,這時需要模數(shù)轉(zhuǎn)換系統(tǒng)將模擬信號轉(zhuǎn)為數(shù)字碼,經(jīng)過計算機處理,人類就可以對信號進行分析處理,模數(shù)轉(zhuǎn)換系統(tǒng)起到了自然與人之間橋梁的作用。

    模數(shù)轉(zhuǎn)換系統(tǒng)主要分為示波器與數(shù)據(jù)采集系統(tǒng)兩類,在相同性能參數(shù)情況下,示波器有集成度高等特點,數(shù)據(jù)采集系統(tǒng)有可定制性強、數(shù)據(jù)在線處理能力強等特點。在高能物理、粒子物理實驗、輻射探測等科學研究領(lǐng)域,測量系統(tǒng)需要滿足不同的物理需求,數(shù)據(jù)采集系統(tǒng)因可定制性強等特點被廣泛應用。

    數(shù)據(jù)采集系統(tǒng)結(jié)構(gòu)如圖1所示,首先模擬信號經(jīng)過前置模擬電路進行預處理,如單端輸入轉(zhuǎn)差分電路等,經(jīng)調(diào)理過的模擬信號進入模數(shù)轉(zhuǎn)換器(Analog to Digital Converter,ADC)芯片進行模數(shù)轉(zhuǎn)換,ADC輸出量化編碼至現(xiàn)場可編程邏輯門陣列(Field Programmable Gate Array,FPGA)芯片,當ADC輸出的采樣數(shù)據(jù)率高于FPGA內(nèi)部邏輯資源的處理速率時,F(xiàn)PGA不能直接接收數(shù)據(jù)進入其內(nèi)部邏輯資源,這時需要對ADC的輸出數(shù)據(jù)進行接收轉(zhuǎn)換、延時調(diào)整和降速處理等操作,才能進入FPGA內(nèi)部處理,再通過外部總線協(xié)議讀取DDR或FPGA內(nèi)部的緩存數(shù)據(jù)做在線數(shù)據(jù)分析或離線數(shù)據(jù)分析,數(shù)據(jù)采集系統(tǒng)還包括一些外圍電路,比如前端模擬電路、時鐘電路、外觸發(fā)模塊及電源模塊等[1-4]。




本文詳細內(nèi)容請下載:http://ihrv.cn/resource/share/2000004268。




作者信息:

趙  前,羅通頂,陳彥麗,王  晶,呂宗璟,李海濤,張雁霞,阮林波

(西北核技術(shù)研究所 強脈沖輻射環(huán)境模擬與效應國家重點實驗室,陜西 西安710024)




wd.jpg

此內(nèi)容為AET網(wǎng)站原創(chuàng),未經(jīng)授權(quán)禁止轉(zhuǎn)載。