Direction Finding Algorithms for Noncircular Signals Based on Even Order Cumulants

LIU Jian; YU Hong-qi; HUANG Zhi-tao; ZHOU Yi-yu

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Direction Finding Algorithms for Noncircular Signals Based on Even Order Cumulants

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- Direction Finding Algorithms for Noncircular Signals Based on Even Order Cumulants
- Acta Electronica Sinica Vol. 35, Issue 12, Pages: 2371-2375(2007)
- 作者机构：
  
  1. 国防科技大学电子科学与工程学院,湖南,长沙,410073
  2. 空军工程大学电讯工程学院,陕西,西安,710077
  3. 国防科技大学电子科学与工程学院湖南长沙,410073
  4. 空军工程大学电讯工程学院陕西西安,710077
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN911.7
- Published：2007
- 稿件说明：
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LIU Jian, YU Hong-qi, HUANG Zhi-tao, et al. Direction Finding Algorithms for Noncircular Signals Based on Even Order Cumulants[J]. Acta Electronica Sinica, 2007, 35(12): 2371-2375.
DOI：

LIU Jian, YU Hong-qi, HUANG Zhi-tao, et al. Direction Finding Algorithms for Noncircular Signals Based on Even Order Cumulants[J]. Acta Electronica Sinica, 2007, 35(12): 2371-2375. DOI：

摘要

提出了基于2

阶累积量的非圆信号测向MUSIC(Multiple Signal Classification)算法(称为NC-2

-MUSIC)

作为2

-MUSIC算法利用非圆信息的一种扩展

在可测向信号数、分辨力和测角精度等方面的性能均优于2

-MUSIC算法.并且

越大

NC-2

-MUSIC算法的可测向信号数越大

分辨力越高

对模型误差也越不敏感.针对均布线阵(ULA:Uniform Linear Array)提出的NC-2

-MUSIC/ULA算法减小了计算量.仿真实验验证了NC-2

-MUSIC算法的优良性能.

Abstract

The NC-2

-MUSIC(Multiple Signal Classification)algorithm

which is an extension of the 2

-MUSIC algorithm to noncircular(NC)applications

is proposed.The performance of NC-2

-MUSIC algorithm for noncircular signals is better than 2

-MUSIC algorithm due to the utilization of noncircular information of signals.The resolution and robustness to modeling errors of NC-2

-MUSIC algorithm become better with the increase of

.The computational complexity of the NC-2

-MUSIC algorithm is analyzed and the NC-2

-MUSIC algorithm for uniform linear array(ULA)

needs much less computation is also proposed.Simulation results show the better performance of NC-2

-MUSIC algorithm over 2

-MUSIC and validate other conclusions about NC-2

-MUSIC.

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