基于DSP的多功能汽车防撞雷达的设计  

The design of multi-purpose automobile collision avoidance radar system based on DSP

作　　者：赵元黎[1] 孙艳敏[1] 杨文超[1] 冯艳平[1] 

机构地区：[1]郑州大学物理工程学院,河南450001

出　　处：《微计算机信息》2009年第11期264-266,共3页Control & Automation

摘　　要：本系统基于C6000系列DSP的实时操作系统DSP/BIOS的多线程多任务管理,对前视雷达和后视雷达的接收信号同时进行实时处理,是集车载前视雷达、后视雷达、倒车雷达的功能于一体的多功能汽车防撞雷达。在软件方面,利用AR模型功率谱估计的burg算法、MTD-上下扫频相互匹配法对接收到的中频信号进行处理,提高了信噪比和信号处理的准确度,更好地解决多目标问题,降低虚报警、漏报警率。This system which real-timely processes the received signals of the forward radar and rearward radar at the same time based on the multi-threaded multi-task management of real-time operating system DSP / BIOS of the C6000 DSP series , is a multi-purpose automobile collision avoidance radar which sets forward radar and rearward radar and reversing radar in one. As the software ,the burg algorithm of the AR model power spectrum estimate and the MTD- matched each other from top to bottom scan periods are used to process the received IF signals ,which can improve SNR and the accuracy of signal processing ,and it is a better way to resolve the multi-objective problem and reduce false alarm and missed alarm rate.

关 键 词：汽车防撞 LFMCW雷达 DSP DSP/BIOS 

分 类 号：TN958[电子电信—信号与信息处理]