Multi-mode hybrid injection semi-physical radar target simulation and evaluation system and method

The multi-mode hybrid injection semi-physical radar target simulation and evaluation system solves the response lag problem of dynamic real-time closed-loop and multi-mode collaborative testing in existing technologies, realizes efficient and intelligent radar performance testing and evaluation, and improves the realism of simulation results and testing efficiency.

CN121276464BActive Publication Date: 2026-06-30NANJING LIGHTNING INFORMATION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NANJING LIGHTNING INFORMATION TECH CO LTD
Filing Date
2025-11-21
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing injection-based hardware-in-the-loop simulation systems suffer from problems such as slow response, fragmented modes, and insufficient intelligence in dynamic real-time closed-loop testing, multi-mode collaborative testing, and high-order performance automated evaluation, making it difficult to achieve efficient and intelligent radar performance testing and evaluation.

Method used

A multi-mode hybrid injection-type semi-physical radar target simulation and evaluation system is adopted, including a radar/electronic warfare beam synchronization unit, an injection-type radar target simulation and evaluation system, and a simulation control unit. Through heterogeneous operating system design, real-time data fusion, and automated evaluation algorithms, dynamic real-time closed-loop, multi-mode collaborative testing, and high-order performance evaluation are achieved.

Benefits of technology

It achieves high-fidelity dynamic scene simulation, improves testing timeliness by 20 times, scene switching efficiency by 99%, and reduces reliance on manual intervention by 95%, significantly improving the realism of simulation results, testing efficiency, and the objectivity of evaluation results.

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Abstract

This invention belongs to the field of radar testing and simulation technology, specifically disclosing a multi-mode hybrid injection-type hardware-in-the-loop radar target simulation and evaluation system and method. The system comprises a radar / electronic warfare beam synchronization unit, an injection-type radar target simulation and evaluation system, and a simulation control unit. The system acquires real-time radar beam scanning information through the beam synchronization unit and fuses it in real-time with avionics control data from an avionics system test bench. This drives the injection system to generate a simulated radio frequency target containing sum, azimuth, and elevation difference signals, which is then injected into the radar under test. The simulation control unit is responsible for human-computer interaction, controlling the test process, and automatically and comprehensively evaluating the simulation results. This invention enables dynamic closed-loop simulation, seamless multi-mode switching, and automated evaluation of high-order tactical indicators, making it suitable for high-fidelity performance verification of modern radar systems.
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