共轭传播算子测向算法  

Conjugate propagator method for direction finding

作　　者：刘剑[1] 王延伟[1] 黄知涛[2] 周一宇[2] 

机构地区：[1]空军工程大学电讯工程学院,陕西西安710077 [2]国防科技大学电子科学与工程学院,湖南长沙410073

出　　处：《通信学报》2008年第5期13-18,共6页Journal on Communications

基　　金：国家自然科学基金资助项目(60502040)~~

摘　　要：针对一维信号提出了共轭传播算子测向算法(COP),新算法利用了阵列输出数据的共轭,通过对阵列孔径的扩展,可对多于阵元数的信号进行测向,其分辨力和测角精度优于OPM(正交传播算子测向算法)和MUSIC算法。分析了新算法的均方误差性能和计算复杂度,得到了均方误差的解析表达式。仿真实验验证了COP算法的优良性能,均方误差的理论值与仿真值相符。A new direction finding algorithm called conjugate propagator method （COP） for one-dimension signals was proposed. The new algorithm uses the array output and its conjugate form to extend the array aperture so that it can detect more signals than sensors and has better performance （in terms of resolution and angular precision） than OPM （orthonormal-PM） and MUSIC algorithms. The mean square error （MSE） performance of COP was analyzed and the analytical expression of MSE was given. The computational complexity of COP was analyzed also. Simulation results show the better performance of COP than OPM and MUSIC algorithms and the accordance between the theoretical results and the simulation results.

关 键 词：阵列信号处理 测向 阵列扩展 传播算子方法 

分 类 号：TN911.7[电子电信—通信与信息系统]