主动声呐抗同频干扰技术方法研究

Investigation of technical methods against shared-frequency jamming of active sonar

同频干扰严重影响了主动声呐的作战使用,大大降低了水面舰艇的反潜作战效能。从技术角度出发,以理论分析为基础,结合水面舰艇编队反潜战术的特点,提出了基于信号幅度判决和基于信号编码判决的2种水面舰艇主动声呐抗同频干扰的方法,分析了相应的实现途径,并对这2种方法的抗干扰能力及技术实现的可行性进行了评估。研究结论对声呐装备的研制与改进、水面舰艇反潜作战战术应用及声呐装备作战使用具有一定的理论参考价值。

Shared-frequency jamming is a key factor which remarkably affects the combat use of active sonar,and dramatically degrades the efficiency of anti-submarine warfare（ASW）conducted by surface ships.In this paper,from the point view of technology,two methods based on criterion of signal amplitude decision and signal encoding decision have been proposed to tackle the problem of shared-frequency jamming suffered by shipborne sonar with respect to group ASW tactics of surface ships.Both the methods of realization and anti-jamming abilities have also been analyzed and evaluated respectively.The results provide several useful theoretical supports for sonar equipment research and modification,applications of ASW tactics conducted by surface groups,and combat use of sonar equipments.