Dissertation > Excellent graduate degree dissertation topics show

Coherent Source DOA Estimation Based on a Single Snapshot of the Uniform Circular Array

Author: DingJunJun
Tutor: ZhangXuXiang
School: Nanjing University of Posts and Telecommunications
Course: Electromagnetic Field and Microwave Technology
Keywords: Uniform circular array Uniform circular array rotation invariant subspace algorithms Uniform circular array to finding roots Multiple signal classification algorithm Coherent Source Single Snapshot
CLC: TN911.23
Type: Master's thesis
Year: 2012
Downloads: 32
Quote: 0
Read: Download Dissertation

Abstract


Spatial spectrum estimation algorithm is a method used to estimate the spatial signal reaches the receiver array to wave direction (DOA) DOA estimation of the array signal processing field an extremely important application . Need to estimate the direction of arrival of the signal are in the process of radar , sonar , wireless communications and signal processing . On the basis of the model of uniform circular array (UCA) signal reception , combined with uniform circular array rotation invariant subspace (UCA-ESPRIT) algorithm and uniform circular array root finding multiple signal classification (UCA-ROOT-MUSIC) algorithm , on the single uniform circular array snapshots coherent source DOA estimation algorithm exploratory research . First , the use of phase mode excitation array element space uniform circular array (UCA) conversion the pattern space uniform linear array , that is a virtual uniform linear array ( VULA ) . Next, the data vector obtained by the virtual linear array (VULA) Hermitian Toeplitz matrix reconstruction , after reconstitution of the matrix is used to restore the dimension of the signal space and noise space addition to the source correlation . Finally, the use of TLS-ESPRIT algorithm or ROOT-MUSIC algorithm to separate the signal space and noise space , thus correctly estimate the direction of arrival of the signal . The the article proposed algorithm does not require against $ subarray division does not need subarray covariance matrix before / after to smooth space , thus reducing the computational complexity . Simulation results prove that the article mentioned algorithms and use the 100 snapshots traditional spatial smoothing class algorithm similar performance , but the article mentioned algorithm uses only a snapshot algorithm to calculate the amount is very small .

Related Dissertations

  1. The Performance Analysis of Spatial Spectrum Estimation Algorithms,TN911.23
  2. Research on High-Efficient Spatial Spectrum Estimation Algorithm,TN911.7
  3. The Research of the DOA Estimation for Different Array Shapes and the Performance of an Array with Defect Elements,TN911.7
  4. Dynamic DOA Estimation Based on Maximum Likelihood Algorithm,TN911.7
  5. Research of Super Resolution Algorithm in High Frequency Radar,TN957.51
  6. DOA Estimation in Impulsive Noise Environment Based on Uniform Circular Array,TN911.23
  7. Research of DOA Estimation in Impulsive Noise Environment,TN911.7
  8. Direction of Arrival Estimation Based on MIMO Radar,TN957.51
  9. Research on DOA Estimation Algorithm of Smart Antenna in TD-SCDMA System,TN929.533
  10. Multi-Parameters Estimation Using Uniform Circular Polarization-Sensitive Array,TN911.7
  11. The Direction of Arrival Estimation and the Application in the Wireless Positioning,TN911.23
  12. Design of Uniform Circular Phased Array Based on VxWorks and FPGA,TN821.8
  13. A Research on DOA Estimation Methods of UCA,TN911.7
  14. Array antenna structure - electrical performance impact analysis,TN822
  15. Signal phase matching principle DOA estimation algorithm,TN911.7
  16. A Research on the Algorithms of Direction Finding with Uniform Circular Arrays,TN820
  17. Research of DOA and TDOA Estimation Methods Based on Fractional Lower-order Statistics,TN911.2
  18. Study on Multidimensional Parameter Estimation Based on Non-ideal Electromagnetic Vector Sensor Array,TP212
  19. Signal number estimation and beamforming technology,TN911
  20. Simulation Research on Bathymetric Sidescan Sonar,U666.7

CLC: > Industrial Technology > Radio electronics, telecommunications technology > Communicate > Communication theory > Information Theory > Signal detection and estimation
© 2012 www.DissertationTopic.Net  Mobile