一体化雷达视频综合采集系统的设计与实现

Design of integrated radar video acquisition system and its implementation

针对雷达视频信号采集中存在的通道数量多、数据率高以及硬件平台多样化等问题,设计实现了一种可重构的一体化雷达视频综合采集系统.该系统以FPGA为核心,实现了一部雷达中相互独立的多路雷达视频指令信号的统一接入与一体化采集,通过LVDS接口将采集到的数据统一发送至数字收发平台,输出数据速率达到7.2 Gb/s;同时利用FPGA的可重构特性,设计了以ARM作为主控核心的重构器,在不改变硬件平台的情况下,实现了多种型号雷达视频信号采集系统的平滑兼容.测试结果表明,本系统采集的数据具有较高的准确性,并且平台扩展性较好,可以为多种型号雷达的多种视频信号的一体化采集提供统一平台.

Concerning for the channel number being more, the data rate high, the hardware platform ofdiversification and other problems existing in the radar video signal acquisition, this paper designs andimplements a reconfigurable integrated radar video acquisition system. Based on using the FPGA, the systemrealizes the unified access and integrated acquisition of mutually independent multi-channel radar video andinstructions signals in one radar system, and sends the collected data unifiedly to the digital transceiver platformthrough the LVDS interface, and its output data rate reaches 7.2 Gb/s. Meanwhile, by taking advantage of thereconfiguration of FPGA, this paper designs also a reconstructor using the ARM as the main control core, andimplements the smooth compatibility of various types of radar video signal acquisition system without varying thehardware platform. Test results show the data collected by this system has a higher accuracy, the system has abetter platform augmentability, thus providing a unified platform for the integrated acquisition of various videosignals of the multiple types of radar systems.