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兵工学报 ›› 2006, Vol. 27 ›› Issue (1): 41-45.

• 论文 • 上一篇    下一篇

基于相关函数的车载短波三信道测向新算法

王磊,戴旭初   

  1. 中国科学技术大学电子工程与信息科学系,安徽合肥230027
  • 收稿日期:2005-03-01 上线日期:2014-12-25
  • 通讯作者: 王磊

Correlation Based Direction Finding Algorithm for Vehicular Shortwave Tri-channel System

WANG Lei, DAI Xu chu   

  1. Department of Electronic Engineering and Information science,University of Science and Technology of China, Hefei 230027, Anhui, China
  • Received:2005-03-01 Online:2014-12-25
  • Contact: WANG Lei

摘要: 针对非协同性射频源,提出了一种基于Watson-Watt交叉环天线的短波测向新算法。该算法采用三信道模型,从3个信道接收信号的相关函数入手,得到了求解方位角的表达式,通过对相关函数的一系列处理,可以很好地解决调制方式兼容、低信噪比下的测向精度以及信道间的相位失配等问题。计算机仿真实验结果显示了该算法的正确性和有效性。

关键词: 信息处理技术 , 短波测向 , Watson-Watt交叉环天线 , 相关函数 , 三信道系统

Abstract: A novel direction finding algorithm based on Watson-Watt crossed-loop antennas was pre?sented .This method can be applied to non-coordinate RF source and uses a tri-channel model. Firstly, using correlation functions among the received signals from three channels, an estimator oi the azimuth was attained. Then, the correlation functions were processed, and the problems about modulation compatibility, precision of direction finding in low SNR and phase mismatch among three channels could be solved. Simulation results indicate the correctness and effectiveness of this method.

Key words: information processing technique , shortwave direction finding , Watson-Watt crossed-loop antenna , correlation function , tri-channel system

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