利用真实舰船航行辐射噪声作为目标及干扰，正态分布高斯白噪声作为噪声背景，在基元等间隔线阵上实现了最佳空间滤波器。
The realization of OSF in the case of real target radiated noise in the background of Gaussian white noise for equal spaced line array is illustrated.
本文导出误差反馈次最优二阶状态空间数字滤波器单位噪声增益的计算公式。
A simple formula of unit noise gain is derived for suboptimal second-order state-space digital filter with error feedback.
利用该矩阵滤波器处理实测数据协方差阵，并利用特征分解获得其噪声子空间。
The noise suppression method using matrix filter bssed on matched field processing is presented.
其次采用合适空间尺寸的空间域非线性平滑滤波器进行滤波处理，对噪声干扰的抑制能力较强，能起到较好作用；
Firstly, picking up of the foreground is based on the method of background difference. Secondly, choosing a proper median filter is significant to suppress the noise interference.
其次采用合适空间尺寸的空间域非线性平滑滤波器进行滤波处理，对噪声干扰的抑制能力较强，能起到较好作用；
Firstly, picking up of the foreground is based on the method of background difference. Secondly, choosing a proper median filter is significant to suppress the noise interference.
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