摘要
针对导航卫星信号监测的新要求,提出一种集成了数据采集、处理、存储和回放功能的一体化卫星信号采集系统。该系统采用PCIe架构,系统带宽可达到全双工900MB;数据采集480MB持续数据,以及480MB突发数据;数据处理采用FPGA+DSP联合架构,完成对数据实时处理;存储采用全固态结构,用Flash代替传统的磁盘存储;并且能够通过PCIe接口完成960MB带宽的数据回放。该系统具有性能高、集成度高的优点,可以运用在雷达、侦查等高端领域。
A satellite signal data acquisition system integrated with functions of data acquisition, sig- nal processing, data storage and signal playback, based on the demands of the navigation satellite signal monitoring. The system＇ s structure is based on PCIe and its full - duplex bandwidth can achieve 900MB ; the data acquisition module can deal with 480MB sustained data stream and exLra 480MB burst data stream; the signal processing module adopt FPGA ＋ DSP to operate data;the data storage structure is complete solid, which replaces the traditional magnetic disk by flash array;the signal playback module playback data with bandwidth 960MB through PCIe. The system can apply for fiehls including radar and detection with the merits of high performance and high integrity.
出处
《微处理机》
2012年第3期51-53,57,共4页
Microprocessors
