簡易數(shù)字頻率計題解.( 1997年 B 題 ) 編寫與講解人:田良(東南大學(xué)無線電系,2003年3月12日) 一)任務(wù) 設(shè)計并制作一臺數(shù)字顯示的簡易頻率計。 (二)要求 1.基本要求 (1)頻率測量 a.測量范圍 信號:方波、正弦波 幅度:0.5V~5V[注] 頻率:1Hz~1MHz b.測試誤差≤0.1% (2)周期測量 a.測量范圍 信號:方波、正弦波 幅度:0.5V~5V[注] 頻率:1Hz~1MHz b.測試誤差≤0.1% 3) 脈沖寬度測量 a.測量范圍 信號:脈沖波 幅度:0.5V~5V[注] 脈沖寬度≥100μs b.測試誤差≤0.1% (4)顯示器 十進(jìn)制數(shù)字顯示,顯示刷新時間1~10秒 連續(xù)可調(diào),對上述三種測量功能分別采用不同顏色的 發(fā)光二極管指示。 (5)具有自校功能,時標(biāo)信號頻率為1MHz。 (6)自行設(shè)計并制作滿足本設(shè)計任務(wù)要求的穩(wěn)壓電源
標(biāo)簽: 1997 2003 數(shù)字頻率計 東南大學(xué)
上傳時間: 2013-12-26
上傳用戶:xg262122
采用3D Bresenham算法在兩點(diǎn)間劃一直線 % This program is ported to MATLAB from: % B.Pendleton. line3d - 3D Bresenham s (a 3D line drawing algorithm) % ftp://ftp.isc.org/pub/usenet/comp.sources.unix/volume26/line3d, 1992 % % Which is referenced by: % Fischer, J., A. del Rio (2004). A Fast Method for Applying Rigid % Transformations to Volume Data, WSCG2004 Conference. % http://wscg.zcu.cz/wscg2004/Papers_2004_Short/M19.pdf
標(biāo)簽: Bresenham Pendleton program MATLAB
上傳時間: 2013-12-10
上傳用戶:sz_hjbf
As the source code name, this code is writing in Verilog and also inside the folder there is a c code to see the simulation results from verilog.
標(biāo)簽: code the Verilog writing
上傳時間: 2013-12-27
上傳用戶:wangdean1101
This toolbox was designed as a teaching aid, which matlab is particularly good for since source code is relatively legible and simple to modify. However, it is still reasonably fast if used with the supplied optimiser. However, if you really want to speed things up you should consider compiling the matrix composition routine for H into a mex function. Then again if you really want to speed things up you probably shouldn t be using matlab anyway... Get hold of a dedicated C program once you understand the algorithm.
標(biāo)簽: particularly designed teaching toolbox
上傳時間: 2016-11-25
上傳用戶:hustfanenze
Matlab實(shí)現(xiàn): Erlang B model(M/M/n/n)與 Erlang C model排隊(duì)系統(tǒng)的模擬,并畫出阻塞概率(P)與負(fù)載(A=lamda/miu in Erlang)的關(guān)系圖。用法:運(yùn)行RunMe
標(biāo)簽: Erlang model Matlab 排隊(duì)系統(tǒng)
上傳時間: 2014-01-02
上傳用戶:wcl168881111111
讀者要在命令行下輸入tcc -B d:\tc\source\pport.c,來編譯 之后需要編譯server.c和clint.c
標(biāo)簽: csourcepport server clint tcc
上傳時間: 2017-02-18
上傳用戶:ZJX5201314
生成Trick文件工具 1.Open command line 2.input tricktest Usage: TrickTest -f -o -i -f source mpeg2 file to trick -o trick output directory -i output file id -m max coding error, default 0 -b max bitrate for trick generate, default 0 mean no limit -s trick buffer block size, must be n*188 -l log file, default c:\tricktest.log example: tricktest -f 黑鷹行動.mpg -o c:\temp -i A -m 1000 -b 3750000 soure file: 黑鷹行動.mpg output directory: c:\temp filename: 000000A,000000A.ff,000000A.fr,000000A.vvx max coding error: 1000 trick generation speed: 3750000 bps a
標(biāo)簽: TrickTest tricktest command source
上傳時間: 2014-01-23
上傳用戶:水口鴻勝電器
隨著光伏發(fā)電系統(tǒng)快速發(fā)展,以及電動汽車充電樁的普及,傳統(tǒng)的剩余電流保護(hù)器無法滿足實(shí)際需求。介紹了一款B型剩余電流保護(hù)器,采用磁調(diào)制剩余電流互感器和零序電流互感器采集剩余電流。根據(jù)GB/T 22794—2017標(biāo)準(zhǔn)要求,可識別1 kHz及以下的正弦交流、帶和不帶直流分量的脈動直流、平滑直流等剩余電流信號。經(jīng)信號調(diào)理電路將電壓信號送到單片機(jī)進(jìn)行采集和判斷。通過試驗(yàn)測試,該樣機(jī)在測試精度和速度上均符合國家標(biāo)準(zhǔn)的相關(guān)要求。The rapid development of photovoltaic power generation systems and the popularity of electric vehicle charging piles make the traditional residual current protective devices unable to meet the actual demand.This paper proposed a type B residual current protective device,which uses the magnetically modulated residual current transformer and the zero sequence current transformer to acquire the residual current.According to the requirements of GB/T 22794—2017,the type B residual current protective device can detect sinusoidal AC residual current of 1kHz and below 1kHz,pulsating DC residual current with and without DC component,smooth DC residual current and so on.The signal processing circuit sends the voltage signal to the MCU for acquisition and judgment.Through experimental tests,the device meets the relevant requirements of national standards in terms of test accuracy and speed.
標(biāo)簽: 電流保護(hù)器
上傳時間: 2022-03-27
上傳用戶:
ASR M08-B設(shè)置軟件 V3.2 arduino 2560+ASRM08-B測試程序 arduino UNO+ASRM08-B測試程序語音控制臺燈電路圖及C51源碼(不帶校驗(yàn)碼) 繼電器模塊設(shè)置。 ASR M08-B是一款語音識別模塊。首先對模塊添加一些關(guān)鍵字,對著該模塊說出關(guān)鍵字,串口會返回三位的數(shù),如果是返回特定的三位數(shù)字,還會引起ASR M08-B的相關(guān)引腳電平的變化?!緶y試】①打開“ASR M08-B設(shè)置軟件 V3.2.exe”。②選擇“串口號”、“打開串口”、點(diǎn)選“十六進(jìn)制顯示”。③將USB轉(zhuǎn)串口模塊連接到語音識別模塊上。接線方法如下:語音模塊TXD --> USB模塊RXD語音模塊RXD --> USB模塊TXD語音模塊GND --> USB模塊GND語音模塊3V3 --> USB模塊3V3(此端為3.3V電源供電端。)④將模塊的開關(guān)撥到“A”端,最好再按一次上面的大按鈕(按一次即可,為了確保模塊工作在正確的模式)。⑤對著模塊說“開燈”、“關(guān)燈”模塊會返回“0B”、“0A”,表示正常(注意:0B對應(yīng)返回值010,0B對應(yīng)返回值010,返回是16進(jìn)制顯示的嘛,設(shè)置的時候是10進(jìn)制設(shè)置的)。
標(biāo)簽: ASR M08-B
上傳時間: 2022-07-06
上傳用戶:aben
21世紀(jì)大學(xué)新型參考教材系列 集成電路B 荒井
上傳時間: 2013-04-15
上傳用戶:eeworm
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