| 引用本文: | 贾平,徐国强.光栅扫描雷达显示中的余辉模拟.[J].国防科技大学学报,1994,16(3):39-43.[点击复制] |
| Jia Ping,Xu Guoqiang.Afterglow Simulation of the Raster Scanning Radar Indication System[J].Journal of National University of Defense Technology,1994,16(3):39-43[点击复制] |
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| 光栅扫描雷达显示中的余辉模拟 |
| 贾平, 徐国强 |
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(国防科技大学 电子技术系 湖南 长沙 410073)
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| 摘要: |
| 在光栅扫描雷达显示系统中，模拟随机扫描雷达显示系统中的余辉效应是新式雷达尚待解决的一个重要问题。本文讨论了新型的光栅扫描体制的雷达显示系统以及怎样实现余辉效应的方法。以伪随机序列为理论基础，用移位寄存器构成一个随机地址发生器，用高速只读存储器PROM查询数据，对视频存储器VRAM进行读改写过程，使视频数据递减，以达到模拟随机扫描雷达的余辉效应，起到了良好的仿真效果。 |
| 关键词: 光栅扫描 雷达显示 仿真 伪随机序列 |
| DOI： |
| 投稿日期：1993-10-28 |
| 基金项目: |
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| Afterglow Simulation of the Raster Scanning Radar Indication System |
| Jia Ping, Xu Guoqiang |
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(Department of Electronic Technology)
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| Abstract: |
| In the raster scanning radar display system，the simulation of afterglow effect in the random scanning radar display system is an important unsolved problem in up-to-date radars. This article introduces a new type of radar display system in raster scanning mechanism as well as the method to realise ofterglow effect. Based on the theory of Pseudo-random sequence, the simulation of afterglow effect in the random scanning radar is accomplished and a perfect simulation effect will therefore be achieved by means of using a shift memory to create a random address generator，using a high-speed read-only memory (PROM) to trace data，and perform the reading，revising and writing process on video memory (VRAM) so as to decrease the video data progressively. |
| Keywords: raster scanning radar,display simulation,pseudo-random,sequence. |
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