Journal of Systems Engineering and Electronics ›› 2010, Vol. 32 ›› Issue (8): 1600-1603.

• 电子技术 • 上一篇    下一篇

基于单个多模天线的非圆信号闭式DOA估计

付思超,徐友根,刘志文   

  1. (北京理工大学信息与电子学院, 北京 100081)
  • 出版日期:2010-08-13 发布日期:2010-01-03

Uni-multimode-antenna closed-form direction-of-arrival estimation for fully-noncircular signals

FU Si-chao, XU You-gen, LIU Zhi-wen   

  1. (School of Information and Electronics, Beijing Inst. of Technology, Beijing 100081, China)
  • Online:2010-08-13 Published:2010-01-03

摘要:

针对因使用天线阵列而造成的天线互耦和阵元位置未核准问题,利用多模天线多个模式输出间的内在联系,以及完全非圆信号的特殊性质,提出了一种旋转不变型闭式波达方向(direction of arrival, DOA)估计方法。由于该法只需使用单个结构紧凑的双锥天线,无须像传统天线阵列一样进行复杂的阵元空间位置校准,适用于阵列摆放空间受限的应用场合。计算机仿真结果验证了算法的有效性和优越性。

Abstract:

Taking into account the intrinsic feature of multimode antenna’s modal outputs as well as the unique property of fully-noncircular signals, an ESPRIT-like closed-form direction of arrival (DOA) estimation method is proposed. By using only one single compact multimode antenna, this method does not involve complicated element-position calibration, and is attractive when space for array arrangement is very small. Computer simulations are performed to validate the proposed method.