基于二维高阶累积量的自适应谱线增强算法的迭代步长很容易受到噪声干扰的影响，本文分析了基于二维高阶累积量的自适应谱线增强算法的特点，在此基础上提出了一种改进的基于二维高阶累积量的自适应谱线增强算法。计算机仿真结果表明，本文提出的算法对高斯白噪声和高斯色噪声都有很好的抑制作用，可以改善高斯噪声背景中小空间范围的二维信号信噪比。

The iteration step size of the algorithm of two-dimensional high order cumulant-based adaptive line enhancement (2DHOCBALE) is easily affected by noise disturbance. This paper analyzes the feature of 2DHOCBALE, and proposes an improved algorithm. The results of simulation show that the improved algorithm proposed by this paper can well suppress white gaussian noise and colored gaussian noise, and improve the signal-to-noise ratio of two-dimensional signals of small spatial extent embedded in noise background.