The continued reduction of integrated circuit feature sizes and commensurate improvements in device performance are fueling the progress to higher functionality and new application areas. For example, over the last 15 years, the performance of microprocessors has increased 1000 times. Analog circuit performance has also improved, albeit at a slower pace. For example, over the same period the speed/resolution figure-of-merit of analog-to-digital converters improved by only a factor 10.
標(biāo)簽： Digitally Assisted PIPELINE ADCs
上傳時(shí)間： 2020-05-27
上傳用戶：shancjb
基于FPGA設(shè)計(jì)的相關(guān)論文資料大全 84篇用FPGA實(shí)現(xiàn)FFT的研究 劉朝暉 韓月秋 摘 要 目的 針對(duì)高速數(shù)字信號(hào)處理的要求，給出了用現(xiàn)場(chǎng)可編程門(mén)陣列(FPGA)實(shí)現(xiàn)的 快速傅里葉變換(FFT)方案.方法 算法為按時(shí)間抽取的基4算法，采用遞歸結(jié)構(gòu)的塊浮點(diǎn)運(yùn) 算方案，蝶算過(guò)程只擴(kuò)展兩個(gè)符號(hào)位以適應(yīng)雷達(dá)信號(hào)處理的特點(diǎn)，乘法器由陣列乘法器實(shí) 現(xiàn).結(jié)果 采用流水方式保證系統(tǒng)的速度，使取數(shù)據(jù)、計(jì)算旋轉(zhuǎn)因子、復(fù)乘、DFT等操作協(xié) 調(diào)一致，在計(jì)算、通信和存儲(chǔ)間取得平衡，避免了瓶頸的出現(xiàn).結(jié)論 實(shí)驗(yàn)表明，用FPGA 實(shí)現(xiàn)高速數(shù)字信號(hào)處理的算法是一個(gè)可行的方案. 關(guān)鍵詞 離散傅里葉變換； 快速傅里葉變換； 塊浮點(diǎn)運(yùn)算； 可編程門(mén)陣列 分類號(hào) TP39； TN957.511 Implementation of FFT with FPGA Technology Liu Zhaohui Han Yueqiu (Department of Electronics Engineering, Beijing Institute of Technology, Beijing 100081) Abstract Aim To propose a scheme for implementing FFT with FPGA in accor-dance with the requirement for high speed digital signal processing. Methods The structure of FPGA and requirement of system were considered in the experiment, radix-4 algorithm of DIT and recursive structure were adopted. The group float point arithmetic operation was used in the butterfly and the array multiplier was used to realize multiplication. Results The PIPELINE pattern was used to ensure the system speed, it made fetching data, calculating twiddle factor, complex multiplication and D
標(biāo)簽： fpga
上傳時(shí)間： 2022-03-23
上傳用戶：
基于TMS320F28335的超聲波流量計(jì)硬件原理圖+軟件源碼本文以TMS320F28335 處理器為核心，設(shè)計(jì)一種用于管道流量測(cè)量的超聲波流量計(jì)。系統(tǒng)硬件由核心板，超聲波發(fā)射和接收電路，切換電路，超聲換能器，基于ADS805 的高速信號(hào)采集電路，人機(jī)交互以及電源等模塊構(gòu)成。采用時(shí)差法進(jìn)行管道流量測(cè)量，時(shí)差測(cè)量采用SCOT 加權(quán)的廣義互相關(guān)時(shí)延估計(jì)算法。本論文設(shè)計(jì)的超聲波流量計(jì)具有測(cè)量速度快、準(zhǔn)確性好、成本低等優(yōu)點(diǎn)。關(guān)鍵字：C2000，超聲波，流量，廣義互相關(guān)算法AbstractA kind of ultrasonic flowmeter using for the pipe flow measurement is designed based onTMS320F28335 in this paper. The system hardware consists of the following parts: the core board,ultrasonic signal transmitter and receiver circuits, switch circuit, ultrasonic transducer, signalacquisition circuit based on ADS805, human-computer interaction module and power supplymodule, etc. The system use the method of time difference for PIPELINE flow measurement and thetime difference is calculated by the time-delay algorithm of SCOT weighted generalizedcross-correlation. The ultrasonic flowmeter has the features of high testing speed, high precisionand low cost, etc.Keywords: C2000,Ultrasonic, Flow, Generalized Cross-Correlation Algorithm
標(biāo)簽： tms320f28335 超聲波流量計(jì)
上傳時(shí)間： 2022-05-06
上傳用戶：
VIP專區(qū)-嵌入式/單片機(jī)編程源碼精選合集系列（52）資源包含以下內(nèi)容：1. C8051F020的SED1335驅(qū)動(dòng)程序.2. AD7714 AD轉(zhuǎn)換keil C51 源代碼.3. C8051F020 SMB 總線驅(qū)動(dòng)源代碼.4. 溫度傳感器18B20的keil C51驅(qū)動(dòng)程序.5. C8051F020讀寫(xiě)24C256的keil c51程序.6. 51+sl811讀寫(xiě)U盤(pán)的源程序＋原理圖.7. 基于CPLD的二進(jìn)制碼轉(zhuǎn)換為二十進(jìn)制（BCD）碼的電路[1].8. 從大量的wince源代碼中剝離出的fat文件系統(tǒng)源代碼。移植性非常高。 微軟的代碼.9. 凌陽(yáng)MINI OS 實(shí)例.10. threadx操作系統(tǒng)源代碼之.11. threadx操作系統(tǒng)源代碼之.12. threadx操作系統(tǒng)源代碼之.13. threadx操作系統(tǒng)源代碼之.14. 免費(fèi)的tcp ip 協(xié)議的pcb sch.15. windows mobile pocket pc移動(dòng)開(kāi)發(fā)源代碼書(shū)籍.16. 附件程序是我用DSP2812開(kāi)發(fā)的無(wú)刷直流電機(jī)控制程序.17. 步進(jìn)電機(jī)控制系統(tǒng).18. 多數(shù)位分頻器.............................................可直接編譯.19. 自己寫(xiě)的c語(yǔ)言版的軟件實(shí)現(xiàn)cpu的PIPELINE功能的程序。對(duì)于學(xué)習(xí)體系結(jié)構(gòu)的同仁有好處。.20. 一個(gè)多級(jí)菜單的例子.21. vhdl語(yǔ)言.22. 倒車(chē)?yán)走_(dá)源代碼.23. 一個(gè)很有用的USB開(kāi)發(fā)的簡(jiǎn)單例子.24. 常用的竄口調(diào)試器.25. 用ＭＡＸ６９５９實(shí)現(xiàn)的鍵盤(pán)以及數(shù)碼顯示原代碼.26. 基于ARM的生物識(shí)別系統(tǒng).27. 51的IO口模擬UARTRS232 波特率9600 Fosc：22.1184MHz 已在keilc51調(diào)試通過(guò).28. 數(shù)控恒流源電路原理圖 是03年全國(guó)大學(xué)生電子大塞提.29. 圖書(shū)館管理系統(tǒng)..大家多點(diǎn)給我鼓勵(lì)給我支持哦...我會(huì)多點(diǎn)上載代碼到這里的..30. 掏美元培訓(xùn)得來(lái)的某外國(guó)公司推廣keil ARM 和LPC2100的源碼。.31. BT878 圖象顯示 VxWorks 驅(qū)動(dòng)程序.32. 我自己用的MSP430的JTAG。包括原理圖和PCB版圖！AD6軟件打開(kāi)。.33. 書(shū)名“全能混合電路仿真 OrCAD PSpice A-D V9”.34. S3530a和C8051f020的通信測(cè)試程序！.35. 本文介紹了在基于ARM7的嵌入式系統(tǒng)上開(kāi)發(fā) USB接口的詳細(xì)內(nèi)容。.36. ucos移植到m64.37. AVRcamVIEW/jre/bin/java -jar /opt/AVRcamVIEW/lib/AVRcamVIEW.jar.38. 最新ZigBee1.1協(xié)議規(guī)范.比ZigBee0.8有所改進(jìn)..39. 關(guān)于zigbee的一篇論文,國(guó)外的,寫(xiě)的相當(dāng)不錯(cuò),推薦同行的.40. PID是比例、積分、微分三個(gè)詞語(yǔ)的英文縮寫(xiě).
標(biāo)簽： 汽車(chē)維修 培訓(xùn)教材 電工
上傳時(shí)間： 2013-05-29
上傳用戶：eeworm
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