This article introduces that in a new design of radar raster-displaying terminal, SDRAM is used as video frame memory and FPGA is adopted to carry out the process of control circuit.

SDRAM作为雷达光栅显示视频帧缓冲存储器，通过FPGA器件实现对SDRAM的控制，已成功应用于一款雷达光栅显示终端。

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If any of these targets matches the video frame, the corresponding reference beam is emitted by the memory, and picked up by a detector.

ECONOMIST: Optical recognition