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

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. INDEX TERMS electronic countermeasures unmanned surface vehicle (ECM USV); off-board active decoy; centroid jamming; jamming-position maneuver.

Analysis of outboard cross‐eye jamming using an unmanned platform

“…In the case of Radar A, it can be observed that the wave path of the target echo is longer than that of jamming signal. Similar to outboard active decoy jamming [24], a delay module could be added on the jammer, which makes $${r}_{2}={r}_{3}$$. For Radar B, the wave path of the target echo is shorter.…”

“…However, the symmetrical configuration of the inboard jammer provides prior knowledge helpful for the theoretical derivation [8,13,14,17,19], which does not hold in outboard jamming analysis. Meanwhile, analysis of outboard jamming is mainly about the active decoy, not the cross-eye jammer [24,25]. The more general outboard cross-eye jamming situation needed to be analysed to promote the application of unmanned platformbased cross-eye jamming.…”