舰载雷达常利用蒸发波导实现对海上目标的超视距探测,同样蒸发波导也会对有源干扰性能产生影响。针对舰载雷达干扰对抗,基于蒸发波导区域预报数据和雷达干扰方程,对舰船自卫干扰方式的雷达回波功率、干扰功率、干信比等进行了仿真计算和分析,并获得干扰设备在蒸发波导环境中的合理布设区域。结果表明:合理利用蒸发波导条件,可形成对雷达的超视距干扰。评估海上蒸发波导环境下雷达的干扰性能,可为雷达对抗提供辅助决策信息。

Marine evaporation duct can often make ship-borne radar detect over-the鄄horizon target. It may make serious effect on active jamming as well. One case of ship-borne jamming and radar detection in evaporation duct environment is simulated. The height of evaporation comes from region forecast, and the simulation method is based on radar jamming equation. Radar received power, jamming power and jam-to-signal ratio is calculated and analyzed. According to the simulation, reasonable area of jamming equipment can be deduced. The result shows that over-the-horizon radar jamming may be realized using evaporation duct. Information of decision aid can be offered through evaluating the radar jamming performance in evaporation duct environment.

TN959. 7