Digital Modulation Techniques are those echniques through which we convert digital signals into analog signal which can be transmitted through transmission medium...this program demostrate some of the basics techniques
標簽： Modulation Techniques echniques Digital
上傳時間： 2013-12-23
上傳用戶：wyc199288
Main program running when workpiece is ready on deferent belt(deferent_ready=ture). * Call Square_Wave subroutine to generate 0.5ms square wave on P1.2 to drive * electromotor,then drive deferent belt step forward. When it steps to the measure * zone, it stops to be measured. Then call A_D subroutine to transform analog * signals to digital signals , after then call serial subroutine to transfer * digital signals to PC. Call square wave subroutine to drive deferent belt step to * original position waitting for defere ready flag to run the next circle.
標簽： deferent_ready workpiece deferent program
上傳時間： 2017-08-31
上傳用戶：baiom
Use the fast Fourier transform function fft to analyse following signal. Plot the original signal, and the magnitude of its spectrum linearly and logarithmically. Apply Hamming window to reduce the leakage. . The hamming window can be coded in Matlab as for n=1:N hamming(n)=0.54+0.46*cos((2*n-N+1)*pi/N); end; where N is the data length in the FFT.
標簽： matlab fft
上傳時間： 2015-11-23
上傳用戶：石灰巖123
Use fft to analyse signal by plotting the original signal and its spectrum.
標簽： matlab fft
上傳時間： 2015-11-23
上傳用戶：石灰巖123
12bit 低功耗DAC 數模轉換器 The MAX5302 combines a low-power, voltage-output, 12-bit digital-to-analog converter (DAC) and a precision output amplifier in an 8-pin μMAX package. It operates from a single +5V supply, drawing less than 280μA of supply current.
上傳時間： 2017-02-21
上傳用戶：ckbihu
信息隱藏軟件Outguess的源碼 Outguess主要用于JPEg圖象的steganography，本軟件來自Outguess的作者Provos，歡迎大家下載研究-Information Hiding Outguess source software is mainly used Outguess JPEG image steganography, this software from Outguess author of Provos, welcomed everyone to download research
標簽： outguess
上傳時間： 2017-03-07
上傳用戶：Liquor
Dear Reader, this book project brings to you a unique study tool for ESD protection solutions used in analog-integrated circuit (IC) design. Quick-start learning is combined with in-depth understanding for the whole spectrum of cross- disciplinary knowledge required to excel in the ESD field. The chapters cover technical material from elementary semiconductor structure and device levels up to complex analog circuit design examples and case studies.
標簽： Circuits Design Analog ESD for
上傳時間： 2020-06-05
上傳用戶：shancjb
Chapter 1：Introduction and Overview Chapter 2：Switches，Buttons，and Knob 開關按鈕Chapter 3：Clock Sources 時鐘脈沖源Chapter 4：FPGA Configuration Options 配置Chapter 5：Character LCD Screen LCD顯示屏特性Chapter 6：VGA Display Port VGA接口——接到顯示器上Chapter 7：RS-232 Serial Ports RS-232接口——接器件Chapter 8：PS/2 Mouse/Keyboard Port PS/2鼠標鍵盤接口Chapter 9：Digital to Analog Converter（DAC）D/A接口Chapter 10：Analog Capture Circuit 模擬捕獲電路Chapter 11：Intel StrataFlash Parallel NOR Flash PROM Chapter 12：SPI Serial Flash 串行外圍接口系列閃存Chapter 13：DDR SDRAM 內存Chapter 14：10/100 Ethernet Physical Layer Interface以太網物理層接口Chapter 15：Expansion Connectors 擴展接口Chapter 16：XC2C64A CoolRunner-II CPLDChapter 17：DS2432 1-Wire SHA-1 EEPROMSpartan-3E入門實驗板使設計人員能夠即時利用Spartan-3E系列的完整平臺性能。設備支持：Spartan-3E、CoolRunner-ll關鍵特性：Xilinx器件：Spartan-3E（50萬門，XC3S500E-4FG320C），CoolRunnerTM-lI與Platform Flash時鐘：50MHz晶體時鐘振蕩器存儲器：128Mbit 并行Flash，16 Mbit SPI Flash，64MByte DDR SDRAM連接器與接口：以太網10/100Phy，JTAG USB下載，兩個9管腳RS-232串行端口，PS/2類型鼠標/鍵盤端口，帶按鈕的旋轉編碼器，四個滑動開關，八個單獨的LED輸出
標簽： Spartan-3E
上傳時間： 2022-06-19
上傳用戶：kingwide
The MAX2870 ultra-wideband phase-locked loop (PLL) and voltagecontrol oscillator (VCO) can operate in both integer-N and fractional-Nmodes, similar to the Analog Devices ADF4350 wideband synthesizer.This application note compares the MAX2870 and ADF4350 registers andloop filter design in detail. Users who already familiar with ADF4350 canuse this application note as a quick design reference.
上傳時間： 2014-12-23
上傳用戶：變形金剛
Abstract: A digital RF modulator, an integrated solution that satisfies stringent DOCSIS RF-performancerequirements, takes advantage of modern technologies like high-performance wideband digital-to-analogconversion and CMOS technology scaling. This application note describes the concept and advantages ofa digital quadrature amplitude modulation (QAM) modulator that uses the direct-RF architecture to enablea cable access platform (CCAP) system.
上傳時間： 2013-10-20
上傳用戶：drink！
