面源红外诱饵是一种有效对抗红外成像制导导弹的干扰装备。它能模拟被保护目标的红外特征，达到干扰红外成像制导导弹的目的。首先，分析面源红外诱饵对抗红外成像制导导弹的干扰机理。其次，建立面源红外诱饵的辐射模型和运动模型。然后，分析面源红外诱饵红外图像的位置、面积和灰度的变化规律，仿真生成面源红外诱饵红外图像。最后，以干扰成功率作为面源红外诱饵干扰效果评估准则，计算不同距离和不同投放数量下面源红外诱饵干扰成功概率，并对仿真结果进行分析。仿真结果表明：面源红外诱饵能够逼真地模拟目标飞机的光谱辐射分布特性，有效干扰红外成像制导导弹，显著提高目标飞机的战场生存力。

The surface-type infrared decoy is an effective interference equipment to jam infrared imaging guided missile. It can jam the approaching infrared imaging guided missile by simulating the infrared signatures of the fighter to be protected. Firstly, the mechanism of surface-type infrared decoy for jamming infrared imaging guided missile was analyzed. Secondly, the radiation and moving models of surface-type infrared decoy were built. Then, the change rules of the surface-type infrared decoy′s position, area and gray-scale were analyzed. The infrared images of the surface-type infrared decoy were generated. Finally, regarding the jamming success probability as the jamming effect evaluation criterion of surface-type infrared decoy, the jamming success probability in different distances and different quantities were calculated, and the simulation results were analyzed. The simulation results show that the surface-type infrared decoy can realistically simulate the spectral radiation distribution characteristic of fighter, which can effectively jam the infrared imaging guided missile and greatly improve the battlefield survivability of fighter.