Radar signal parallel processing method and system based on heterogeneous multinucleated system

Abstract

The invention discloses a radar signal parallel processing method and system based on a heterogeneous multinucleated system. The method comprises the following steps: S1, initializing equipment-end parameters, opening up a task execution thread, and dividing thread grids of data processing and the dimensions of a thread block; S2, opening up a video memory space and a memory space which are needed for the signal processing; S3, acquiring data transmission and calculating time needed by signal processing of a single time, and scheduling a genetic task scheduling algorithm to obtain a task scheduling mode; and S4, acquiring laser sampling data for storing in the memory space by means of segments according to a time sequence, sending the data to a CPU and a GPU according to the task scheduling mode, mapping sampling points to each thread and performing concurrent execution according to the thread grids and the dimensions of the thread block, and scheduling a filter coefficient to perform orthogonal phase demodulation, pulse compression, moving object display, moving object detection, pulse accumulation and constant false alarm detection on the sampling data. By applying the method and system provided by the invention, the speed of a general processor in executing the signal processing is improved, and the requirement for real-time performance of radar signal processing is met.

Description

Technical field [0001] The invention belongs to the technical field of radar signal processing, and in particular relates to a radar signal parallel processing method and system based on a heterogeneous multi-core system. Background technique [0002] Radar signal processing is an important part of the radar system, which largely determines the performance of the above-mentioned various system radars. It processes the echo signals received by the radar through various algorithms. It can be used in various noise, clutter and interference environments. Detect the target, extract the target's distance, azimuth, elevation angle, speed, and even image, category and other useful information. [0003] At present, the radar system or signal processing module design uses analog circuits and digital devices to realize the signal processing and other functions of the system. The mainstream design schemes generally use digital signal processing chips (DSP) or field programmable gate array (FPG...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects and technical requirements of the prior art, the present invention provides a radar signal parallel processing method and system based on a heterogeneous multi-core system, which can improve the calculation speed of a general-purpose processor to perform signal processing and meet the real-time requirements of radar signal processing , and reduces the cost of radar system development and maintenance, shortens the development cycle, and overcomes the defects of single system, fixed function and insufficient real-time radar signal processing in traditional hardware radar design technology

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