舰载雷达变频方式及变频使用策略研究

Research on Frequency Conversion Strategy and Mode of Shipborne Radar

雷达变频方式的使用一直缺乏有效的理论依据和指导方法,针对这一问题,从天线增益、馈线损耗、发射机放大链增益、大气衰减和动目标检测等方面,分析了频率变化对舰载雷达系统性能的不利影响;从RCS起伏、海杂波抑制、二次回波消除以及波瓣盲区互补等方面,探讨了频率捷变对舰载雷达检测性能的有利影响。然后,分析了舰载雷达的变频工作方式;最后,从实战角度,结合频率捷变对雷达检测性能的影响以及变频工作方式,给出了舰载雷达的变频使用策略。对保护我方频率,提高捷变频雷达作战效能提供了理论支撑。

The use of radar frequency conversion mode has been lack of effective theoretical basis and guidance method.In order to solve this problem,from the aspects of antenna gain,feeder loss,transmitter amplification chain gain,atmospheric attenuation and moving target detection,the adverse effects of frequency change on the performance of ship-borne radar system were analyzed.At the same time,the favorable effects of frequency agility on radar detection performance were discussed from the aspects of RCS,sea clutter suppression,secondary echo cancellation and lobe blind area complementation.Then the frequency conversion mode of shipborne radar was analyzed.From the point of view of actual combat,combined with the influence of frequency agility on radar performance and frequency conversion mode of operation,the frequency conversion strategy of shipborne radar was given.It provides a theoretical support for protecting our frequency and improving the operational efficiency of the frequency agile radar.