摘要
基于软件无线电平台,设计出了一种高精度的军用无中心交互式通信系统[1,2]的中频数据采集器。采集器以TMS320c5509为采集主嵌入式处理器,利用多通道缓存串口接口McBSP与AD模块的实现SPI总线方式的数据采集,采用DMA双缓存和并行处理结构均衡实现数据存储、传输和运算过程。采集器采用标准式外设接口和模块化设计具有很强的可扩展性,现场数据采集试验证明,该采集器能够实时高精度和高稳定性的完成采集任务。
Rased on the platform of SDR （Software Defined Radio）, this paper introduces the design of a high-precision data acquisition of intermediate frequency signals, which is used to process AD （Analog to Digital） data in the military communication system without exchange center （MCSEC）. By taking TMS320C5509 DSP as the primary embedded processor, the processor provides SPI data bus with McBSP connected to AD transfer. Simultaneously, the processor realizes the parallel processing of data storage, transmission and calculation. The system can be extended with the standard peripherals interface and modular design. Experimental results of data acquisition show that the system can achieve real-time data processing with high precision and reliability.
出处
《无线电工程》
2009年第11期22-25,共4页
Radio Engineering
