摘要
研究了波束域降阶Root-MUSIC算法,在子阵分解降阶的基础上,进一步将多项式的求根阶次降到与源数目相同,提出了求解降阶多项式的方法。该方法最大程度地减少了求根多项式的阶次和求解多项式的次数,并保持了Root-MUSIC算法的优良性能。显著降低运算量是其最大优点,仿真结果验证了降阶算法的有效性,并比较了不同阶次波束域Root-MUSIC算法的估计性能。
The beam-space reduced order Root-MUSIC is discussed in this paper. Based on sub-array decomposition, the order of the polynomial is reduced to the same as the number of sources. A new method of solving the reduced order polynomial is presented. With the same superior performance of Root-MUSIC, the reduced order algorithm is more computationally efficient. Simulations are conducted to verify the efficiency of the new method and comparision is made with the conventional Root-MUSIC.
出处
《系统仿真学报》
CAS
CSCD
2003年第11期1567-1569,共3页
Journal of System Simulation
