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High-level language integration based radar imaging method and device

A high-level language, radar imaging technology, applied in measurement devices, creation/generation of source code, reflection/re-radiation of radio waves, etc., can solve the problems of low program portability and heavy workload of software engineers, and improve simulation efficiency. , improve flexibility, improve the effect of accuracy

Active Publication Date: 2019-11-05
INST OF ELECTRONICS CHINESE ACAD OF SCI
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Problems solved by technology

[0003] In addition, due to the continuous innovation of FPGA devices, and the code based on RTL design has strong device adaptability, if the transplantation of a new chip model needs to be changed, the designed IP core, etc., the portability of the program is very low.
[0004] Based on the above problems, based on the traditional RTL design process, the software engineers who implement the SAR algorithm have a huge workload, and a lot of energy is not concentrated on the algorithm itself, but on timing design and functional simulation

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Embodiment Construction

[0025] In the realization of large-scale FPGA programming, the traditional RTL (register transfer level) design process can no longer meet the requirements of high-complex algorithm implementation, and it is necessary to apply HLS (high-level language synthesis) at a higher level for algorithm design and implementation. Therefore, the present invention provides a radar imaging method and device based on high-level language synthesis.

[0026] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0027] The typical SAR imaging algorithm process includes range migration correction, range pulse compression and azimuth pulse compression. The specific process can be divided into figure 1 Shown.

[0028] figure 1 The calculation can be divided into two categories: one is the long point FFT...

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Abstract

The invention discloses a high-level language integration based radar imaging method and device. The method comprises that a radar imaging algorithm is designed, programmed design codes are compiled based on the algorithm; high-level language integration software automatically processes the design codes, and generates a resource network table by integration; and functions of the design codes are simulated to realize SAR imaging. The radar imaging device is realized based on the imaging method. According to the device and method, HLS is used to improve the capability of realizing a complex SARalgorithm of an FPGA, the programming flexibility of the FPGA is improved, and the signal processing capability of the SAR is enhanced.

Description

Technical field [0001] The invention relates to the technical field of radar imaging, in particular to a radar imaging method and device based on high-level language synthesis. Background technique [0002] In recent years, as the demand for aerospace remote sensing has gradually increased, higher requirements have been put forward for the accuracy and timeliness of remote sensing information obtained by spaceborne airborne SAR (Synthetic Aperture Radar). In order to improve the accuracy and timeliness of information processing, it is necessary to conduct research and innovation on processing algorithms and processing platform architecture. The acquisition of aerospace SAR remote sensing information is often the processing of long-distance and large-bandwidth electromagnetic echo signals, which involves how to compensate for the non-stationary motion state of the moving platform, how to use high-precision mathematical models to fit the echo history and then perform focus processi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/90G06F8/20G06F8/30
CPCG01S13/90G06F8/20G06F8/30G01S13/9004
Inventor 曹越刘霖江率
Owner INST OF ELECTRONICS CHINESE ACAD OF SCI