基于PCI Express总线的R-D算法实时成像系统设计  

Design of R-D Algorithm Real-time Imaging System Based on PCI Express Bus

作　　者：李燕[1] 王倩[1] 王虹现[1] 邢孟道[1] 

机构地区：[1]西安电子科技大学雷达信号处理国家重点实验室,陕西西安710071

出　　处：《现代电子技术》2008年第7期23-26,共4页Modern Electronics Technique

摘　　要：距离-多普勒(R-D)算法是一种常用的SAR成像算法,具有数据量大、存储量大等特点,而传统的实时成像系统由于采用PCI总线使得数据传输速率难以提高,从而限制了成像算法的实现。这里设计了一种新型的雷达成像实时处理系统,该系统利用最新的PCI Express总线代替PCI总线,采用了MicroTCA架构,具有极强的运算能力和良好的通信能力,同时具备了数据采集与大容量存储的能力,特别适合于复杂的实时成像雷达信号处理。Range- Doppler （R- D） algorithm is one of the conventional algorithms for SAR imaging. It＇s large in data amount and great in memory capabilities. But traditional real - time imaging system has difficulty in improving the speed of data transferring due to the usage of PCI bus. Consequently it limits the realization of imaging algorithm. A new design is given for radar imaging real - time processing system. This system employs PCI express bus instead of PCI bus and adopts MicroTCA system platform. It＇s strong in calculations and good in communications,also competent for data collection and great memory, especially for complicated real - time imaging radar signal processing system.

关 键 词：R—D算法 PCI EXPRESS MicroTCA 信号处理 DSP 雷达成像 

分 类 号：TN919.8[电子电信—通信与信息系统]