Dissertation > Excellent graduate degree dissertation topics show

Research on the Method of Base-band Signal Processing in the Single Channel Monopulse Angle Autotracking Receiver

Author: WangShanShan
Tutor: LiuNaiAn; HeBingZhe
School: Xi'an University of Electronic Science and Technology
Course: Electronics and Communication Engineering
Keywords: Single Channel Monopulse the Angle Tracking Receiver Low Signal-to-noise ratio Error Signal Demodulation
CLC: TN851
Type: Master's thesis
Year: 2012
Downloads: 36
Quote: 0
Read: Download Dissertation

Abstract


Because of the advantages of good real-time performance, low dynamic hysteresis, low equipment complexity on the satellite, the single channel monopulse autotracking systems have been widely applying in the inter-satellite autotracking system. Thereinto, the angle autotracking receiver is extremely significant. The inter-satellite beacon signal with wide Doppler frequency shift range and low signal-to-noise ratio (SNR) induces the angle autotracking receiver achievement especially the base-band signal processing method to be important to the system.The theory of single channel monopulse autotracking system and the autotracking receiver was described on this thesis at first, through analysing and calculating the characteristic of the beacon signal of the data relay satellite systems which the Low Earth Orbit (LEO) spacecrafts track, the signal model was established; the performance of different base-band signal processing methods was compared, the synchronous demodulation method to demodulate the error signal with low SNR was selected; the signal processing algorithms referring to the synchronous demodulation, such as the IF sampling, the carrier acquisition, the carrier tracking, the best matched filter and so on, was theoretically analysed, and the key parameters were simulated on the thesis; the error signal offset (ultimately affect the autotracking accuracy) caused by the random noise was also simulated. Finally, the engineering implementation of the base-band signal processing of the channel monopulse autotracking system, including the hardware design and the FPGA algorithm were described, through doing detailed testing to obtain the specific experimental data, the experimental results demonstrates the feasibility of proposed engineering implementation of the base-band signal processing, and also demonstrates the accuracy of simulations.

Related Dissertations

  1. Research on Low Signal-To-Noise Ratio Signal Detection Based on Non-Linear Theory,TN911.23
  2. Research of DOA Estimation Algorithm of Wideband Signal,TN911.23
  3. Application of the Fractional Fourier Transform to Target Detection and Imaging in SAR,TN957.51
  4. Estimating the under-sampling of the low signal to noise ratio and ultra-wideband linear frequency modulated radar signal parameters,TN957.51
  5. The Detection and Parameter Estimation of the Linear Frequency Modulated Signals and Nolinear Frequency Modulated Signal in Low SNR,TN911.23
  6. Speech Enhancement Technique Research in Low SNR Conditions Based on Short-Time Spectrum Estimation,TN912.35
  7. The low SNR DS-SS/BPSK signal detection and parameter estimation technology research,TN914.42
  8. Study of Array Direction-finding Techniques in Low SNR Environment,TN911.2
  9. Research of Carrier Synchronization Technique for Low SNR and High Dynamic in Satellite Communications,TN927.2
  10. Research on Frequency Deviation Estimation Algorithm Based on FFT,V443.1
  11. Research on Distributed Aperture Target Detection Technology,TP274.4
  12. The Research and Implementation of PN-Code Capture in the Low-SNR Enviornment,TN914.42
  13. Research on the Method of Fast Acquisition of PN Code in Space Communications,TN914.42
  14. Realization of Burst Mode Communication Modem Technology,TN915.05
  15. Research and Implementation on Key Technologies of HF Data Transmission System at Low Rate,TN919.3
  16. The Research on Test Technology of RFID Signal Modulation at Low SNR,TP391.44
  17. Research on Reconnaissance and Jamming of DS-SS/BPSK Signals,TN914.42
  18. Research on Communication by Ionosphere Scatter and the Application of Cntinuous Phase Modulation,TN926.2
  19. Research and Implementation on Techniques of HF Data Transmission under the Condition of Extremely Low SNR,TN919.3
  20. The Study of the Seismic Data Processing Method in Suibin Area,P631.4

CLC: > Industrial Technology > Radio electronics, telecommunications technology > Radio equipment,telecommunications equipment > Receiver equipment, radio Radio > Receiver: the form of points
© 2012 www.DissertationTopic.Net  Mobile