Dissertation > Excellent graduate degree dissertation topics show

Research on Analog Front-End and ADC Circuit of PXI Based Oscilloscope

Author: YangFangMing
Tutor: XuHongGuang
School: Harbin Institute of Technology
Course: Information and Communication Engineering
Keywords: Conditioning channels High - speed data acquisition Trigger ADC FPGA
CLC: TN792
Type: Master's thesis
Year: 2011
Downloads: 99
Quote: 0
Read: Download Dissertation

Abstract


With the rapid development of computer technology and mature applications , test and measurement equipment , features and performance has also been greatly enhanced . Fully integrated general-purpose computer resources and test and measurement instruments function card instruments also are being studied extensively , design and application . PXI - based digital oscilloscope , the most important is the card - oscilloscope one . PXI - based digital oscilloscope design is divided into two parts, software and hardware design , hardware design is divided into conditioning channels and trigger circuit design , the design of high - speed data acquisition system , high-speed storage system design , PXI interface circuit design of four parts . Trigger system the ADC FPGA - based architecture designed PXI digital oscilloscope hardware part of the core of the high-speed data acquisition circuit and conditioning channel circuit and oscilloscope designed high - speed circuit . Conditioning channel digital oscilloscope analog design . In this paper, the low-noise broadband high-speed FET amplifier with high-resolution numerical control DAC vertical offset can be adjusted continuously , combined with CNC attenuator and differential amplifier can be flexibly configured network conditioning channel attenuation and amplification network and conditioning channel ADC differential interface . Trigger system design , we use a high - speed comparators , precision digital potentiometer to achieve a quality edge-triggered synchronization signal output hysteresis trigger and window trigger , free configuration . In the design of high-speed data acquisition circuit , we use a parallel alternating sampling technology , driven by a pair of high-speed differential clock the two ADC staggered work , to achieve the design objectives and requirements 2Gsps highest sampling rate . LVDS receiver on a high-speed ADC and the FPGA interface design , LVDS logic signals received on the ADC output , at the same time slow down processing of 1:4 to serialization . Between the receive clock and data accuracy in order to receive the data through the LVDS receiver integrated PLL phase trimming to obtain a more satisfactory data waveform .

Related Dissertations

  1. Research on Electromagnetic Acoustic Transducer Detection System Based on FPGA,TH878.2
  2. Study on Drive and Control System of Five-Phase PMSM Based on FPGA,TM341
  3. Development of LXI Arbitrary Waveform Generator,TM935
  4. Research on Synchronous Motor Excitation Control System,TM341
  5. Design of Digital Predistorter for RF Power Amplifier Based on FPGA,TN722.75
  6. Synchronization and Channel Estimation Algorithm in Bursted OFDM System and Its Implementation on FPGA,TN919.3
  7. Performance Analysis of Anti-Multipath Capability in DSSS System and Study on the Compensation Methods,TN914.42
  8. Optimizing and Realising Research on Vedio Compression in TV Guidance System,TN919.81
  9. Research and Hardware Simulation of Multiuser Spread Spectrum Code Acquisition Based on FPGA,TN914.42
  10. Research on Basic Algorithms of Digital Image Processing and Implementation with FPGA,TP391.41
  11. Research of High Speed Image Pre-processing System Based on FPGA,TP391.41
  12. The Research and Implementation of Software Oriented Fault Injection Tool,TP311.52
  13. The Design of the Dual-Camera High-Speed Synchronous Capturing System Based on Gigabit Ethernet,TP274.2
  14. Design of High-Speed Data Acqusition Board Based on Signal Integrity Analysis,TP274.2
  15. Design of High-Speed Digital Image Acquisition and Interface Based on FPGA,TP274.2
  16. Development of Inductance Sensor Data Acquisition System Based on FPGA,TP274.2
  17. Development of Serial Bus Analyzer Based on Nios,TP274
  18. Development of PMC High-speed Data Transmission Board Design Based on FPGA-RocketIO_X,TP274.2
  19. Development of Pxibus High Performance Digital I/O Module,TP274
  20. Development of LXI Counter,TP274
  21. A High-Speed and Real-Time Data Acquisition System Based on FPGA,TP274.2

CLC: > Industrial Technology > Radio electronics, telecommunications technology > Basic electronic circuits > Digital circuits > Digital-analog , digital to analog conversion circuit
© 2012 www.DissertationTopic.Net  Mobile