基于信息理论像元几何形状分布的干扰对比研究

为了改善光电成像系统探测器的几何形状像元成像质量,利用互信息量对矩形像元和六边形像元模拟、仿真,可定量描述成像质量,根据噪声干扰仿真分析不同像元的优势.仿真结果表明,在相同面积条件下六边形像元阵列的互信息量大于矩形像元的信息量;六边形像元有较好的抗噪声干扰能力,利用其特点对电子对抗设备研发有指导意义. 

Information-Theory Based Jamming Contrast Between Shape Distributions of Rectangular and Hexagonal Pixels

In order to explore the effect of pixel's geometry shape in photoelectric imaging sensor on imaging quality, mutual information was used to analyze the imaging quality with rectangle pixel array and hexagon pixel array. System simulation with noise interference has been done and the superiority of different pixel's shapes was analyzed. Results show that, for the same area, the mutual information of hexagon pixel is greater than rectangle pixel, and the hexagon pixel array has strong ability to restrain the noise interference. The advantages of hexagon pixel have important significance on development and evaluation to the optoelectronic countermeasure equipment.