Study on the Jamming-Position Maneuver Algorithm of Off-Board Active Electronic Countermeasure Unmanned Surface Vehicles

Yasong Luo,Chengxu Feng,Qingtao Xia,Xiaoling Ning

doi:10.1109/access.2021.3063856

Yasong Luo, Chengxu Feng + Show 2 more

Open Access

https://doi.org/10.1109/access.2021.3063856

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Abstract

The existing off-board active decoys face such common technical problems as short action time, limited jamming power, and difficult control over deployment situation and effective directive jamming beam direction. For this reason, this paper introduces a new mode and process of anti-missile combat, which places the radar active decoy on an unmanned surface vehicle (USV) to collaborate with the surface warship during the off-board active anti-missile combat. Following the principles of radar terminal guidance centroid jamming, a real-time calculation method for the effective area of off-board active jamming is developed, and the jamming position maneuver strategy under the collaboration of the USV and the surface warship is proposed to implement the off-board active anti-missile combat. The proposed strategy satisfies the needs of long-time, high-power, stable, and effective off-board jamming against incoming anti-ship missiles. This paper further verifies the effectiveness of the proposed strategy in the simulated and live firing confrontations.

Highlights

In modern sea warfare, the biggest threat of surface warships is lot kinds of multi-directions, multi-waves and high-density anti-ship missiles
By receiving, modulating and forwarding the radio-frequency signal of the radar seeker on the incoming missiles, active jamming could create a great number of false targets with large radar cross section (RCS) on the sea to achieve the goal of anti-missile defense [3]–[5]
Condition 3: When the anti-ship missile reaches the critical angle, the active decoy jamming position must ensure that the jamming blanket factor Kj is greater than 1, so as to divert the tracking wave gate of the anti-ship missile towards the false target

Summary

INTRODUCTION

The biggest threat of surface warships is lot kinds of multi-directions, multi-waves and high-density anti-ship missiles. Condition 1, if the active decoy, the surface warship, and the anti-ship missile are on the same line, the active decoy could implement the distance deception jamming against the antiship missile, but the echo centroid is still on the missiletarget line, and the missile is not kept away in terms of angle To effectively divert the echo centroid away from the missile-target line and achieve the good effect of angle deception, the active decoy should keep the horizontal distance from the surface warship (L3 in Figure 6) more than M meters when the anti-ship missile passes the ‘‘critical’’ position.

FEASIBLE INTERVAL UNDER CONDITION 3

CONCLUSION