基于电子海图的真实感航海雷达图像仿真方法

为了满足军事与商船航海雷达的仿真要求，提高雷达回波图像仿真的真实感，提出了一种基于扇形带状纹理融合模型的实时扫描仿真方法模拟高真实感的雷达回波图像。该方法以电子航海图(ENC)数据为雷达回波源数据，根据雷达回波形成机理，以扇形带状纹理融合算法替代传统基于像素单元的雷达图像仿真方法，实时生成雷达回波纹理数据，在此基础上，提出雷达回波信号处理仿真模型实现雷达基本功能，包括增益调节、海浪抑制与雨雪抑制等。经实验证明，该方法在雷达回波显示效率和效果上有了明显改善，为解决雷达与电子海图显示与信息系统（ECDIS）模拟提供有效的手段。

Method of marine radar image simulation based on electronic chart display information system

To meet the requirements of the military and merchant marine radar simulation, and enhance the simulation reality of radar image, a real-time scan simulation approach based on sector-banded texture blending model was presented to simulate highly realistic radar echo image. In this method, Electronic Navigation Chart (ENC) was regarded as the resource data of the radar echo signal, and according to the principle of the radar echo, the sector-banded texture blending algorithm was proposed to replace the traditional radar image simulation method based on the pixel-scan model and generate the radar echo texture data. Based on that, the simulation models of the radar echo signal processing were presented to implement the basic functions of the marine radar, such as gain adjustment, sea clutter suppression and rain/snow clutter suppression. The experimental results show the proposed approach improves distinctly the efficiency and effectiveness of the radar echo simulation, and it is a promising means to address the problem of radar and Electronic Chart Display Information System (ECDIS) simulation.