Dissertation > Excellent graduate degree dissertation topics show

Study on Estimation of Two Dimensional Direction of Arrival Using a DBF Receiver

Author: LiuZuoLin
Tutor: LiShaoBin
School: Harbin Institute of Technology
Course: Information and Communication Engineering
Keywords: narrowband receiver systems wideband signal L-shaped array MUSIC algorithm 2D-Esprit algorithm
CLC: TN851
Type: Master's thesis
Year: 2008
Downloads: 48
Quote: 0
Read: Download Dissertation


With the rapid development of theory and technology of Radio direction finding, Satellite radio direction finding system is becoming the key technologies and important content of the radio navigation and positioning, wireless communications, and other fields. Whether in aviation, maritime industry, meteorology, astronomy and space research, satellite communications and other civilian fields, as well as modern warfare, Satellite radio direction finding system is playing a very important role.At first, by analyzing the process of wideband signals passing narrowband receiver, this paper emphatically analyses the characteristic of the signals having passed the narrowband receiver. It can be proved that the direction information of wideband signals has been kept after passing the narrowband system. So we can conclude that the DBF narrowband receiver systems have the ability to estimate the direction of arrival for wideband signals.On the condition of the One-dimensional uniform linear array, this paper Experimental analyses the MUSIC algorithm which is based on the narrowband, and also analyses the ISM and CSM algorithm which is based on the wideband. The simulation results show that, because of the frequency centre of IF signals has frequency deviation with the IF of DBF narrowband receiver system, estimated results will have a great deviation. Accordingly, with the method which is based on the wideband can help to overcome the bias.We use L-shaped array as the two-demensional array structure in this paper, and we test two kinds of 2D-Esprit algorithm which are based on L-shaped array, the result shows that this two methods both have the estimative deviation which is similar to the case of One-dimensional uniform linear array. Accordingly, a improved programme is given to correct the result, and that the simulation results is given too.

Related Dissertations

  1. The Self-calibration Method of DOA Estimation of the Mutual Coupling Error of Rank-loss for the L-shaped Array,TN820
  2. Research of All-optical Ultra-wideband Signal Generation and Modulation,TN925
  3. Miniaturized radar signal generation , processing and storage technology research,TN957.51
  4. Rotor Broken Bar Fault Detection of Asynchronous Motors Based on MUSIC Algorithm,TM343
  5. Smart Antenna Algorithms Study,TN821.91
  6. Research on Direction Finding Algorithms of Non-circular Signals and Its DSP Realization,TN911.7
  7. DOA estimation of coherent sources,TN911.7
  8. Calibration Algorithm for Sensor Position of Array Antenna Based on Genetic Simulated Annealing Algorithm,TN820.15
  9. Research and Implementation of Subspace Algorithms,TN911.7
  10. Based on vector sensor array broadband beamforming and DOA Estimation Technology,TN911.7
  11. The Fast Method for DOA Estimation of Wideband Signals and Its Implementation on DSP,TN911.7
  12. Research on Improving the Direction Finding Accuracy of Radio in Improve the Radio for the Accuracy of Research,TN98
  13. Based on the theory of compressed sensing analog signal processing,TN911.71
  14. The Design and Research of Communication Shielding Instrument Based on Array Antenna,TN820
  15. Research on High-Efficient Spatial Spectrum Estimation Algorithm,TN911.7
  16. Research on 2-D High Resolution Direction Finding Algorithms,TN911.7
  17. DSP broadband radiated noise measurement array beamforming technology,TN911.7
  18. Wideband signal subspace DOA estimation algorithm,TN911.7
  19. Based on high-resolution direction finding passive radar technology research,TN957.51
  20. Research of Time Delay Estimation Based on High Order Cumulants,TN911.23

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