针对舰载雷达数据处理平台的改造需求,设计了一种基于COM Express的回波预处理模块。通过调整雷达数据处 理平台及软件的实现方式,将回波预处理前移,使用最小的改动量解决了雷达系统的回波数据接收瓶颈问题。分析了数 据处理平台的改造需求,介绍了模块的设计方案、模块的硬件设计、回波预处理的数据传输流程以及PEX8311桥片在Vx- works下的驱动设计。工程实践表明,该模块大大提高了雷达的点迹处理能力,在极限情况下能正确接收并处理雷达回波 数据,满足了雷达改造需求。

A radar echoes pre-processing module based on COM Express was designed to met with the rebuild need of data processing platform which is used in shipborne radar. The echoes data receiving bottle-neck of radar system is solved by moving the radar echoes pre-processing function to the interface board, which adjusted the implementation of data processing platform and its software. The paper analyses the rebuild need of data processing platform, described the design plan of the module, the hardware design, the signal flow of echoes data as well as the driver of PEX8311 chip in Vxworks operating system. The module highly improved the processing ability of radar echoes data, witch can receive and process the radar echoes data correctly even in extremely hard station, so it met the need with the rebuild need of radar data processing platform.