Dissertation > Excellent graduate degree dissertation topics show

Wideband Low Noise testing and calibration system noise sources

Author: HuangKaiDong
Tutor: YangZuo；PengJingYing
School: University of Electronic Science and Technology
Course: Electronics and Communication Engineering
Keywords: Low Noise Test Noise Source Calibration Measurement Uncertainty
CLC: TM937.4
Type: Master's thesis
Year: 2009
Downloads: 102
Quote: 0
Read: Download Dissertation

Abstract


The RF and microwave noise consist in the all wireless system. It is very important that pricisly test noise parameters and research the noise metrolonogy techniques. This article presents the development of the wide-band noise test and noise source calibrate system of CETC10.The project adopt the method that integrate the system by the primary standard noise source which based on the thermodynamics principle ,LNA, isolators,and wide-band noise receivers.The system finally constituted successful and the frequency range covered 10MHz to 40GHz. The system has two main functions that is low noise figure test and the solid noise source ENR parameter calibrate. The system can test low noise temperature from 20K, and the measurement uncertainty is 15% . And that the system calibrate noise source ENR value uncertainty is less than 0.4dB for the whole frequency band .The article first explained the basic theory of the microwave noise. Summarized and analysised the noise test methods. Then introduced process of developed the system by the basic test theory. In the project, the research group also developed the controller and remote interface, wrote the auto test program and designed the system structure.All the techniques ensured the system’s accuracy, stabilization and repetition. Through in-depth research and experiment, the project solved the two key questions that standard noise source efficial output noise temperature measurement and reducing the receiver linearity influence. At last, through the comparison of testing , the result of the experiment, and the uncertainty analysis, the article evaluated the system’s performance.

Related Dissertations

  1. Quantitative Analysis of Pyrolysis Component of Typical Low Volatile Coal of Chinese,TQ530.2
  2. Powered Activited Carbon-UF for Treating Micro-polluted Surface Water,X703
  3. Research on the Structure and Characteristics of Permanent Magnetic Coupling,TH139
  4. The Method for Inertial Platform Testing and Parameter Identification,V249.322
  5. BIT Design of Computer System on Bomb Based on Radio Communication,TJ414
  6. Study of Method and Facilities for Transfering from Hot Air to Exhaust Air Converying System,TK223.25
  7. Lifetime Prediction and Channel Wall Erosion Accelerate Test of Hall Thruster,V439.2
  8. Hardware Implementation of LEO Satellite Channel Characteristic Emulation,TN927.23
  9. Development of Software Platform for Electro-Optical Test System,TP311.52
  10. Research on Web-Based Simulation Interoperability Testing Tool,TP391.9
  11. The Research of 3D Human Motion Capture Based on Reference Points,TP391.41
  12. Camera Calibration and Position and Pose Detecting on Vision Measurement System of PCB,TP391.41
  13. Research on Software of TFT-LCD Testing Equipment Based on ARM,TN873.93
  14. Development of the Locomotory Cell Test and Contorl Module Based on VXIbus,TP274
  15. Development of Software Platform for Designing Automatic Test System,TP274
  16. Process Support Vector Machine and Its Application to Satellite Thermal Equilibrium Temperature Prediction,TP183
  17. Key Control Technique of Wafer Handling Robot,TP242.2
  18. Expression of D-AtCGS in E. Coli and Preparation of Polyclonal Antibody Against D-AtCGS,Q943.2
  19. Process Optimization and Degradation Kinetics for Microwave Vacuum Drying of Different Traditional Chinese Medicine Extract,TQ461
  20. Study on Extracting Process of Rhizoma Alismatis and Rhizoma Smilacis Glabrae and Their Hypouricemic Effects,R284
  21. Synthesis and Application of the chloro- methoxy fatty acid methyl esters,TQ414.8

CLC: > Industrial Technology > Electrotechnical > Electrical measurement techniques and instruments > Measurement and instrumentation of the electromagnetic field strength ( signal strength ) > Noise measurement,noise meter
© 2012 www.DissertationTopic.Net  Mobile