计算机工程与应用2018，Vol.54Issue(10)：186-191,6.DOI:10.3778/j.issn.1002-8331.1612-0356
基于DEM图像增强的航海雷达回波模拟
Method of marine radar echo simulation based on DEM image enhancement
程欢1
作者信息
- 1. 陆军军事交通学院镇江校区 指挥系,江苏 镇江212003
- 折叠
摘要
Abstract
In the traditional method of marine radar echo simulation,large numbers of polygons are obtained using the inter-section of scanning fans and Electronic Navigation Chart(ENC).A method of marine radar echo simulation based on Dig-ital Elevation Model(DEM)image enhancement is proposed in this paper, so as to improve the poor real-time perfor-mance and lowly realistic echo image of traditional ones.The method establishes a heterogeneous system of Central Pro-cessing Unit(CPU)combined with Graphics Processing Unit(GPU).The real-time echo is produced via cluster and con-necting steps for reducing the number of polygons,after which the echo image is enhanced via the structure of GPU.In order to eliminate the impact of meridianal parts,DEM of the same harbor is used to modify the echo image by splitting harbor map into multiple segments.The process of simulation is according to principle of the producing of radar echo,and the sector-banded texture blending algorithm is used to replace the traditional ones based on the pixel-scan model.The simulation results show that the efficiency of image enhancement using GPU increases in large scenes, thus the overall speedup achieves 240 times than the traditional ones using CPU.关键词
图像增强/纬度渐长率/雷达回波/数字高程模型/图像处理单元Key words
image enhancement/meridianal parts/radar echo/Digital Elevation Model(DEM)/Graphics Processing Unit(GPU)分类
信息技术与安全科学引用本文复制引用
程欢..基于DEM图像增强的航海雷达回波模拟[J].计算机工程与应用,2018,54(10):186-191,6.
