基于声波法的舰船排气红外温度场的仿真重建研究

根据声速与温度的关系，提出了一种基于声学法的舰船排气红外温度场重建方法。通过布置在烟囱边界的声波传感器，测量各声波传递路径的时间，进而解算温度场。分析了测量误差对重建结果的影响，结果表明基于声波法的温度场重建方法在5%的测量误差水平内具有良好的重建效果。该方法为红外辐射强度以及红外制导武器锁定距离的计算提供了重要支撑，为舰船实现红外隐身动态控制奠定了基础。

Simulation reconstruction on temperature distribution of ship exhaust based on acoustic method

A reconstruction method on temperature distribution of ship exhaust based acoustic method was presented by the relations between velocity of speed and temperature.By measuring the transit times of the waves in the reciprocal directions on the paths,the infrared temperature distribution can be reconstructed,followed by analyzing the effect of measurement error on reconstruction.The analysis showed the acoustic method had a good performance within 5% measurement error.It can be used for the evaluation on infrared radiant intensity and the locked distance by infrared weapons,which will promote the development of the dynamic control on infrared stealth of shipboard.