复杂电磁环境下雷达抗干扰性能测试方法研究

Study on radar anti-jamming performance test method in complex electromagnetic environment

针对信息时代电子战背景下雷达抗干扰性能评估测试设备多、组织实施难的难题,提出一种基于指标计算模型和半实物仿真系统的测试方法。分析了烧穿距离和有效干扰扇区等关键指标同雷达性能参数的内在联系。为满足抗干扰测试小型化、综合化、智能化的发展需求,提出了一种新型的雷达对抗综合信号生成系统设计方案。该系统利用先进DSP处理技术、接口电路设计和终端显控技术,实现了状态数据采集、目标回波模拟以及复杂对抗场景灵活设置;结合某型雷达开展了抗干扰性能测试,通过烧穿距离、距离波门拖引试验验证了测试系统的合理性和有效性。研究成果为实现复杂战场环境下的雷达性能测试和抗干扰策略制定提供了重要支撑。

Aiming at the issues of plenty of complex test equipment, and organization and implementation difficulty in radar anti-jamming performance evaluation under the background of electronic warfare in information age, a novel test method based on the calculation model of radar anti-jamming performance specifications and semi-physical simulation system is proposed. The inherent relation between the key specifications, such as burn-through range and effective jamming sector, and the radar performance parameters is analyzed. In order to meet the requirements of miniaturization, integralization and intelligentization in anti-jamming test, a new design scheme of radar ECM integrated signal generation system （REISGS） is proposed The system adopts advanced DSP technique, interface circuit design and terminal display ＆ control technique to realize the state data acquisition, target echo simulation and flexible setting of complex ECM scenarios. A certain radar was used as example to carry out the anti-jamming performance test in the combat scenarios generated with the REISGS. The experiment tests of burn-through range and range gate pull off （RGPO） were conducted to verify the reasonability and effectiveness of the test system. This study results provide an important support for achieving the radar performance test and anti-jamming strategy making in complex battlefield environment.