| 基于SHARC处理器的PGA算法实现 |
| |
| 引用本文： | 赵春光,关振红,陈加清.基于SHARC处理器的PGA算法实现[J].国际商务研究,2008,48(4):57-60. |
| |
| 作者姓名： | 赵春光 关振红 陈加清 |
| |
| 作者单位： | 南京电子工程研究所 南京210007(赵春光)，解放军理工大学气象学院 南京211101(关振红，陈加清) |
| |
| 摘 要： | 合成孔径雷达(SAR)实时处理技术的发展对相位梯度自聚焦(PGA)算法的工程实现提出了要求。基于以多片主流SHARC处理器为核心构成的硬件平台,针对PGA算法数据处理量大、计算复杂度高的特点,设计开发了并行处理的系统拓扑和程序流水结构及其软件程序。机载SAR实测数据的处理结果验证了该方案的有效性。
|
| 关 键 词： | 合成孔径雷达 信号处理 自聚焦算法 相位梯度自聚焦 并行多处理器系统 |
| 修稿时间： | 2007/10/26 0:00:00 |
Implementation of PGA Algorithm Based on SHARC Processors |
| |
| ZHAO Chun-guang,GUAN Zhen-hong,CHEN Jia-qing.Implementation of PGA Algorithm Based on SHARC Processors[J].International Business Research,2008,48(4):57-60. |
| |
| Authors: | ZHAO Chun-guang GUAN Zhen-hong CHEN Jia-qing |
| |
| Abstract: | The real-time implementation of phase gradient autofocus(PGA)algorithm is required because of the rapid development of synthetic aperture radar(SAR) techniques.Based on the up-to-data DSP hardware system composed by multiple SHARC chips,according to the characteristics of large data size and heavy computation burden of PGA algorithm,the novel parallel structure,the pipelining scheme and the software programmes are developed and discussed in this paper.The test results of live airborne SAR data are given to show its validity. |
| |
| Keywords: | synthetic aperture radar(SAR) signal processing autofocus algorithm phase gradient autofocus(PGA) parallel multiple processors system |
|
| 点击此处可从《国际商务研究》浏览原始摘要信息 |
| 点击此处可从《国际商务研究》下载免费的PDF全文 |
