期刊文献+
任意字段
题名或关键词
题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

均匀圆阵DOA估计的一种酉变换方法 被引量：2

A Unitary Transformation Method for DOA Estimation with Uniform Circular Array
在线阅读 下载PDF
导出
摘要 针对基于均匀圆阵的子空间类DOA估计算法包含大量复数运算、硬件实现复杂的问题,提出了阵元空间中的一种酉变换方法。该方法利用阵列的中心对称性将协方差矩阵和导向矢量分别转化为实对称阵和实矢量,从而大大降低了硬件实现复杂度。基于该酉变换的MUSIC算法在性能上优于传统的MUSIC算法和均匀圆阵模式空间酉MUSIC算法。 Subspace based DOA estimation algorithms with a uniform circular array （UCA） involve complex computations,which results in high hardware implementation complexity.To solve this problem,a unitary transformation method in element space is proposed.Exploiting the centrosymmetry of UCA,this method makes the covariance matrix and steering vectors real-valued,thus the hardware implementation complexity is significantly reduced;furthermore,the MUSIC algorithm following the unitary transformation performs better than both the conventional MUSIC and the unitary MUSIC in phase mode space of the UCA.
作者 徐德琛 刘志文 齐晓东 徐友根
机构地区 北京理工大学信息与电子学院 中国电子科技集团公司第五十四研究所
出处 《无线电工程》 2010年第6期14-16,共3页 Radio Engineering
基金 国家自然科学基金(No.60672084)
关键词 均匀圆阵 中心对称性 DOA估计 酉变换 uniform circular array centrosymmetry DOA estimation unitary transformation
分类号 TN953.3 [电子电信—信号与信息处理]
  • 相关文献

参考文献5

  • 1HEMKUMAR N D, CAVALLARO J R. Efficient Complex Matrix Transformations with CORDIC [ C ]. Canada : Proc. of 11 th IEEE Symposium on Computer Arithmetic, 1993:122 - 129.
  • 2HUARNG K C, YEH C C. A Unitary Transformation Method for Angle-of-arrival Estimation [J]. IEEE Transactions on Signal Processing, 1991,39(5) :975 - 977.
  • 3KIM M, ICHIGE K, ARAI H. Implementation of FPGA Based Fast DOA Estimator Using Unitary MUSIC Algorithm [ C ]. USA: Proc. of 58th IEEE Vehicular Technology Conference, 2003:213 - 217.
  • 4BELLONI F, KOIVUNEN V. Unitary root-MUSIC Technique for Uniform Circular Array [ C]. USA : Proc. of 3rd IEEE ISSPIT. Piscataway, 2003 : 451 - 454.
  • 5GOLUB G , LOAN C V. Matrix Computations [ M ]. MD : The Johns Hopkins University Press, 1996:414- 438.

同被引文献20

  • 1唐忠礼,武思军,张曙.基于均匀圆阵的二维DOA估计的新算法[J].哈尔滨工程大学学报,2005,26(2):247-251. 被引量：5
  • 2Schmidt R O. Multiple emitter location and signal parameter es timation[J]. IEEE Trans. onAntennas and Propagation, 1986, 34(3) :276 - 280.
  • 3Rubsamen M, Gershman A B. Direction-oarrival estimation for nonuniform sensor arrays from manifold separation to Fourier domain MUSIC methods[J]. IEEE Trans. on Signal Process ing, 2009,57(2) :588 -599.
  • 4Gao F F, Nallanathan A, Wang Y D. Improvd MUSIC under the coexistence of both circular and noncircular sources[J]. IEEE Trans. on Signal Processing, 2008,56(7) :3033-3038.
  • 5Mestre X, Lagunas M. Modified subspace algorithms for DOA estimation with large arrays[J]. IEEE Trans. on Signal Process- ing, 2008,56(2) :598-614.
  • 6Mccloud M L, Seharf L L. A new subspace identification algo rithm for high-resolution DOA estimation[J]. IEEE Trans. on Antennas and Propagation, 2002, 50(10) :1382 - 1390.
  • 7He M H, Yin Y X, Zhang X D. UCA ESPRIT algorithm for 2- D angle estimation [J]. IEEE Trans. on Signal Processing, 2000,1(1) :437 - 440.
  • 8Goosens R, Rogier H, Werbrouck S. UCA root-MUSIC with sparse uniform circular arrays [J]. IEEE Trans. on Signal Processing, 2008,56(8) :4095 - 4099.
  • 9Wu Y T, So H C. Simple and accurate two-dimensional angle estimation for a single source with uniform circular array[J]. IEEE Antennas and Wireless Propagation Letters, 2008, 7(2) :78 - 80.
  • 10Pajsusco P, Pagani P. On the use of uniform circular array for characterizing UWB time reversal[J]. IEEE Trans. on Anten- nas and Propagation, 2009,57(1) : 102 - 109.

引证文献2

二级引证文献7

无线电工程
2010年 第6期

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部