Abstract
To address the problem and reduce the risk wherein a ship-based cross-eye jammer could set a protected ship as a target, an unmanned platform equipped with a jammer is proposed to be used. However, the jamming situation violates the original cross-eye jamming conditions and introduces some new elements. In this regard, the impact of outboard cross-eye jamming in the presence of ship echoes is derived in detail. The analysis shows that the outboard cross-eye jamming combines the characteristics of outboard active and traditional cross-eye jamming gains. It can reduce the standard cross-eye jamming requirement of the jamming-to-signal ratio (JSR) and improve the jamming effect. The phase difference of a cross-eye jammer can be controlled at 0° or 180° to obtain a larger angular positioning deviation based on the JSR requirement, thus providing a theoretical basis for applications of unmanned outboard cross-eye jamming.
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