摘要： 在合成孔径雷达成像处理系统中，矩阵转置已成为影响系统实时性的重要因素。为提高矩阵转置效率，提出一种用于快速矩阵原位转置的方案，基于现场可编程门阵列和同步动态随机存储器(SDRAM)实现该方案。系统测试结果表明，读写平均效率达到SDRAM峰值带宽的64%，验证了该方法可有效提高矩阵转置的总体效率。

关键词: 合成孔径雷达, 矩阵原位转置, 实时成像, 现场可编程门阵列器件, 同步动态随机存储器, CS算法

Abstract: Matrix transpose is widely used in real-time Synthetic Aperture Radar(SAR) imaging processing system. The performance of matrix transpose directly determines the efficiency of SAR imaging system. This paper proposes a new in-place matrix transpose method based on Field Programmable Gate Array(FPGA) and Synchronous Dynamic Random Access Memory(SDRAM). According to the test results, the average two-dimensional access efficiency is increased to 64% of the peak bandwidth of SDRAM by this method, which verifies that the method can effectively improve the matrix transpose overall efficiency.

Key words: Synthetic Aperture Radar(SAR), matrix in-place transpose, real-time imaging, Field Programmable Gate Array(FPGA) device, Synchronous Dynamic Random Access Memory(SDRAM), Chip Scaling(CS) algorithm

中图分类号: 

• TN911.72