空间谱估计的仿真研究

Simulation of space spectrum estimation

建立了空间谱估计的仿真环境。介绍了带有方位信息的无线电信号、各种噪声、均匀线性阵列、波源数与相干性预估计、MUSIC算法、Smoothing算法、谱曲线图与谱峰值表等模块的仿真模型。基于仿真环境进行了大量的仿真实验,据此分析了波源数与相干性预估计的矩阵分解法、MUSIC算法、Smoothing算法的效能。

The paper constructed the simulation environment of space spectrum estimation, introduced the following simulation models: radio signals with directions, noises, linear uniform antenna array, pre-estimation of the number and the coherence of waves, MUSIC algorithm, Smoothing algorithm, figure of spectrum curve and table of spectrum values. Some simulation experiments were done based on the environment. The article analyzed the efficiency of MUSIC algorithm, Smoothing algorithm, matrix decomposition approach of pre-estimation.