Design method for radar signal multistage parallel software real-time processing

Abstract

The invention belongs to the field of radar information processing, and relates to a design method for radar signal multistage parallel software real-time processing. The method comprises the following steps: S1, carrying out serial and parallel interval distinguishing on a radar signal processing flow; S2, performing minimum module division on serial and parallel radar signal processing functions, and counting the processing time granularity of each minimum module; S3, taking the minimum module with the maximum time granularity as a task unit, taking the unit as a reference, and taking a plurality of adjacent modules with consistent or similar time granularity or similar combined time granularity as new task units; S4, creating main threads with the task units as thread units, wherein the main threads of different task units serve as first-level parallel, and the main threads of the task units capable of being parallel serve as second-level parallel; and S5, according to the number of radar echo channels, enabling the task unit main thread to derive each channel processing sub-thread, wherein the inter-channel sub-threads are used as three-level parallel. According to the method, the advantages of multi-thread parallel processing can be fully utilized, and the problem of radar signal software real-time processing is effectively solved.

Description

technical field [0001] The invention belongs to the field of radar information processing. Background technique [0002] Traditional radar information processing systems are mainly based on hardware platforms such as FPGA and DSP, and are developed for specific application functions for system design. Once the design is completed, the overall architecture and functions are relatively fixed, and the system development cycle is long, and system upgrades will involve hardware time. The delay affects the zero distance or other functional timing issues, and the flexibility and versatility are poor. The current complex and ever-changing application environment makes the radar system more complex and diverse. The interface between radar design hardware and software platforms is complex, and the boundaries between hardware and software are blurred, which is extremely unfavorable for the rapid upgrade and maintenance of the entire system; Flexibility, convenience of on-site commissi...

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Problems solved by technology

[0004] In view of the above existing problems, the purpose of the present invention is to provide a design method for multi-level parallel software-based real-time processing of radar signals, which can effectively improve the flexibility and versatility of radar system design, and solve the problem of complex debugging of traditional analog custom radar modules and system problems. upgrade difficulty

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