多核DSP基于循环缓冲结构的SAR方位预滤波设计与实现  

Design and Implementation of Multi-core DSP of SAR Azimuth Pre-Filtering Based on Loop-Buffer Structure

作　　者：张雨轮 徐玮[1] 

机构地区：[1]西安电子工程研究所,西安710100

出　　处：《火控雷达技术》2017年第3期39-42,共4页Fire Control Radar Technology

摘　　要：本文介绍了某轻小型雷达系统中,基于多核DSP实现SAR方位向预滤波。借助C6678强大的浮点运算性能和自带的SYSBIOS多核实时操作系统,能够在保证雷达系统控制精度的前提下,完成基于循环缓冲结构的SAR方位向预滤波。该方法兼具灵活性和大运算量下的实时性要求,试验测试结果表明了该方法是正确而有效的。SAR azimuth pre-filtering based on multi-core DSP in a mini-SAR system is introduced. SAR azimuth pre-filtering based on loop-buffer structure can be accomplished with the aid of high float operation performance of C6678＇s and SYSBIOS multi-core real-time operation system,meanwhile high control precision of radar system can be maintained. This method possesses high flexibility and real-time performance at high operation load. Test results show that this method is correct and effective.

关 键 词：SAR方位预滤波 多核DSP 循环缓冲 

分 类 号：TN95[电子电信—信号与信息处理]