[1]张国超,杨任农..嵌入式卫星地图的一种快速显示方法[J].郑州大学学报(工学版),2008,29(01):96-98.
Zhang Guochao,Yang Rennong.A quick display method for embedded satellite maps[J].Journal of Zhengzhou University (Engineering Science),2008,29(01):96-98.
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嵌入式卫星地图的一种快速显示方法(
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]
- 卷:
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29
- 期数:
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2008年01期
- 页码:
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96-98
- 栏目:
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- 出版日期:
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1900-01-01
文章信息/Info
- Title:
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A quick display method for embedded satellite maps
- 作者:
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张国超; 杨任农.
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空军工程大学,工程学院,陕西,西安,710038;空军95949部队,河北,沧州,061022, 空军工程大学,工程学院,陕西,西安,710038
- Author(s):
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Zhang Guochao; Yang Rennong
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- 关键词:
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嵌入式; 卫星地图; 快速显示; 线性四叉树; WindML
- Keywords:
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- 文献标志码:
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A
- 摘要:
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在资源有限的嵌入式卫星地图系统中利用线性四叉树对卫星地图分层分块编码,优化地图数据访问方式,减少内存数据的加载冗余,从而实现地图的快速显示.通过WindML双缓存技术,在VxWorks实时操作系统下消除地图重绘抖动,平滑图像输出.程序运行结果表明:该方法对提高终端的响应速度,优化图像输出效果明显.
- Abstract:
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In the embedded satellite map system with limited resources, the linear quadtree is used to encode the satellite map hierarchically and blocked, optimize the map data access mode, reduce the loading redundancy of memory data, and realize the rapid display of map. Through WindML dual cache technology, map redraw jitter is eliminated under VxWorks real-time operating system to smooth image output. The results of the program operation show that the method has obvious effect on improving the response speed of the terminal and optimizing the image output.
更新日期/Last Update:
1900-01-01