船舶通信系统的近场源多维参数估计

Estimation of near-field source multidimensional parameters for ship communication system

针对传统船舶通信系统中近场源参数估计准确率不高的现象,提出船舶通信系统的近场源多为参数估计。确定近场源多维矩阵阵元,利用阵元间距对多维空间内的延时相位差进行标记,并划定多维参数预估的矩阵范围,采用多维阵元参数估计算法,对多维空间内的近场源数据矩阵进行参数估计处理,实现多维参数估计。仿真实验结果表明,近场源多维参数估计方法比传统估计方法的参数估计效率高出20%,并具备极高的有效性。

In view of the low accuracy of near-field source parameter estimation in traditional ship communication system, it is proposed that the near-field source of ship communication system is mostly parameter estimation. A near-field signal source model is constructed. The delay phase difference in multi-dimensional space is marked by the array spacing, and the matrix range of multi-dimensional parameter estimation is delimited. The near-field source multi-dimensional parameter estimation algorithm is used to estimate the parameters of the near-field source data matrix in multi-dimensional space. The experimental data show that the proposed method is 20% more efficient than the traditional method in estimating the parameters of the near-field sources and has high efficiency.