| 基于DDR SDRAM的CTM算法与实现 |
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| 引用本文： | 刘晨,张涛. 基于DDR SDRAM的CTM算法与实现[J]. 火控雷达技术, 2010, 39(3): 23-27 |
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| 作者姓名： | 刘晨 张涛 |
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| 作者单位： | 西安电子工程研究所,西安,710100;西安电子工程研究所,西安,710100 |
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| 摘 要： | 高分辨率SAR实时成像的大数据量使得矩阵转置运算量激增,成为算法研究中的重要问题。本文结合DDR SDRAM的内部运行机制和读写时序,提出面向DDR SDRAM的最快列读取CTM(corner turning memory,矩阵转置)和读写均衡CTM算法,在无冗余存储器DDR SDRAM体系中获得满意的效果。
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| 关 键 词： | CTM算法 SDRAM 合成孔径雷达 实时成像 DDR |
CTM Algorithm and Implementation Based on DDR SDRAM |
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| Liu Chen,Zhang Tao. CTM Algorithm and Implementation Based on DDR SDRAM[J]. Fire Control Radar Technology, 2010, 39(3): 23-27 |
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| Authors: | Liu Chen Zhang Tao |
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| Affiliation: | ( Xi＇an Electronic Engineering Research Institute, Xi＇an 710100 ) |
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| Abstract: | Calculation load of matrix transposition got increased significantly due to a large amount of data in realtime imaging of high resolution synthetic aperture radar （SAR）. According to internal operating mechanism and read-and-write timing of double data rate synchronous dynamic random access memory （ DDR SDRAM） , a DDR SDRAM-orientated fastest column accessing corner turning memory （CTM） algorithm and read-and-write balanced CTM algorithm are proposed. Good result is obtained in a redundant-free DDR SDRAM system. |
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| Keywords: | SDRAM DDR |
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