A Radar Image Display Acceleration System Based on Zynq

Abstract

The invention provides a radar image display acceleration system based on the ZYNQ, and relates to the technical field of signal processing. The system comprises a DSP chip, a ZYNQ chip, a DDR3 chip and a display module; the DSP chip is used for extracting radar image information from radar echoes, the ZYNQ chip includes a first module, a second module and a processor PS, the first module is used for converting the DSP chip time sequence into the DDR3 time sequence, the second module is used for converting the DDR3 time sequence into the VGA time sequence, and the processor is used for controlling the first module and the second module for time sequence conversion, the DDR3 chip is used for storing radar image information data obtained after conversion through the first module, and the display module is used for displaying a radar image obtained after conversion through the second module. The system uses DDR3 to replace a dual port RAM to serve as a cache, a piece of DSP is omitted, the difficulty of design can be significantly reduced, the cost is saved, this system can be used for radar image display, the resolution ratio can be 1080P, the frame rate can be 40 frames, and the requirement of mage display in most occasions can be met.

Description

Technical field [0001] The invention relates to the technical field of digital signal processing, in particular to a ZYNQ-based radar image display acceleration system. Background technique [0002] The radar image display system is an important part of the radar system. It is responsible for information display tasks such as radar working status, radar data, and radar control interface. It is the hub of the radar between man and machine. Ideally, the radar display system needs to efficiently process the data acquired by the radar, and present the extracted data information to the radar operator in an intuitive, effective and accurate manner. Efficient real-time, high-resolution display, digital signal processing is the development direction of radar image display system. [0003] The radar display image data is divided into foreground layer data and background layer data. The background layer data mainly includes infrequent information such as the range of the radar and the bloc...

AI Technical Summary

Problems solved by technology

[0005] a) The speed of the DSP external bus is slow, and the data transmission rate is limited, which makes it difficult to meet the needs of high-resolution image processing;

[0006] b) The capacity of the dual-port RAM is small, and it is difficult to realize image display with a large amount of data and high resolution;

[0007] c) The capacity of the dual-port RAM is small, and multiple data storage areas cannot be opened for switching and displaying, and it is easy to appear a flickering phenomenon when drawing

[0008] d) The signal processing capability of a single DSP is limited, and the layer overlay processing capability can only be improved by increasing the number of hardware. However, additional hardware not only increases the cost, but also occupies PCB board space, increasing the difficulty of design

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