Multi-channel radar and photoelectric video integrated display method and system based on fpga

Abstract

The invention relates to the technical field of radar video and photoelectric video display, in particular to an FPGA-based multi-channel radar and photoelectric video integrated display method and system. The method includes acquiring all radar video data and photoelectric video data that need to be displayed; performing preprocessing on the radar video data and photoelectric video data before video buffering; controlling the read and write process of the preprocessed photoelectric video data and radar video data; SSRAM and DDR SDRAM respectively store the pixel point coordinate system matrix of radar video data and the pixel points of photoelectric video data; complete the comprehensive display of radar video data and photoelectric video data; the system includes a data preprocessing unit and a video cache control unit and Heterogeneous memory, display control unit and display; the embodiment of the present invention implements the above method through the system, adopts a set of SSRAM to cache multiple sets of radar video data, and a set of DDR SDRAM to cache multi-channel photoelectric video, which improves the utilization of hardware display cache Rate.

Description

technical field [0001] The invention relates to the technical field of radar video and photoelectric video display, in particular to an FPGA-based multi-channel radar and photoelectric video integrated display method and system. Background technique [0002] Radar is the most effective technical means to detect long-distance targets such as sea or air. After radar detects a target, it forms a visible radar video, which is the most intuitive and effective way to obtain detection information. With the development of computer and information technology, through the combination of photoelectric sensors and radar, multiple targets and comprehensive video information of the environment are formed to complement each other's deficiencies in target detection and monitoring. [0003] There are two main forms of radar video comprehensive display terminal. One is realized by using embedded hardware platforms such as FPGA or DSP or ASIC or ARM, and its display memory can be acted by var...

AI Technical Summary

Problems solved by technology

[0005] 1. The first method uses various types of storage devices to complete the caching function, and the utilization rate of multiple hardware display caches is not high, resulting in waste of system resources;

[0006] 2. The second method shows that the memory is mainly cached by the memory of the GPU graphics card, and the power consumption is too high, which affects system performance.

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