航空学报 > 2001, Vol. 22 Issue (S1): 106-108

合成孔径雷达数字信号处理机体系结构研究

荣向军, 毛士艺, 李少洪, 王月忠   

  1. 北京航空航天大学电子工程系203教研室 北京 100083
  • 收稿日期:2000-05-10 修回日期:2000-09-30 出版日期:2001-11-25 发布日期:2001-11-25

RESEARCH ON ARCHITECTURE OF SAR DIGITAL SIGNAL PROCESSING SYSTEMS

RONG Xiang-jun, MAO Shi-yi, LI Shao-hong, WANG Yue-zhong   

  1. Department of Electronic Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China
  • Received:2000-05-10 Revised:2000-09-30 Online:2001-11-25 Published:2001-11-25

摘要:

回顾了机载合成孔径雷达数字信号处理的基本算法及其特点,选用了支持多种模式、适合 DSP处理的 Chirp Scaling算法。提出并设计了基于此算法的多处理机并行工作的 SAR处理机硬件体系结构。分析了此体系结构采用串行流水的合理性,介绍了各处理机的特点,给出了多处理机之间通讯的几种方法。

关键词: 合成孔径雷达, DSP, 多处理器, 体系结构

Abstract:

The Chirp Scaling algorithm and its characteristics used in the airborne Synthetic Aperture Radar are reviewed. Mapping the algorithms structure into the hardware of a real time processor system, the authors have designed and implemented the architecture of the SAR real time processing system. The paper briefly introduced the architecture and components of the system, and stressed the communicating methods based on Control Bus and Dedicated Data Channel between the components of the system.

Key words: synthet ic aperture radar, DSP, mult ip rocesso r, arch itecture