一种基于图像二维熵的电磁环境复杂度评估方法

An Evaluation Method of Electromagnetic Environment Complexity Based on Two-Dimensional Entropy of Image

电磁环境复杂度的评估对战场频谱控制、电子对抗相关试验具有重要意义。针对以往评估方法的结果易受电磁环境门限值选取影响的问题,从信息论的角度出发,将电磁环境数据映射为图像,提出了一种基于图像二维熵的电磁环境复杂度评估方法。此方法无需设置电平门限。通过对实测的电磁环境数据的计算表明,该方法操作性强,能够准确、有效地评估电磁环境复杂度。

Electromagnetic environment complexity is very important for the battlefield electromagnetic spectrum control and electronic countermeasures test. Considering that the results of previous evaluation methods are sensitive to the selection of power threshold, the electromagnetic environment data can be mapped to images from the perspective of information theory. A new method of electromagnetic environment complexity evaluation is proposed, which can overcome this problem without setting the power threshold. The calculation of measured electromagnetic environment data shows that the method is practical and useful, and the evaluation of electromagnetic environment complexity could be realized accurately and effectively.