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Abstract：
To study the V-tail inclination of a supersonic missile that meet the requirements of low electromagnetic scattering characteristics in interval flight, an automatic tilt scheme is presented. The improved annealing algorithm is used to determine the optimal solution of the V-tail tilt angle, where multiple scattering of the physical optics plus physical theory of diffraction is used to calculate the radar cross section (RCS) of the target. The results show that the optimal solutions of V-tail inclination are different in various flight intervals of the horizontal observation field. In the forward side flight interval, changing the initial azimuth has less influence on the optimal solution of V-tail tilt angle, while more influence on the missile RCS indicator. In the side tail flight interval, the RCS level of the missile is low, and there is an optimal solution and a few feasible solutions for the V-tail inclination. The feasible solution of V-tail tilt angle in the lateral flight interval is obviously increased. The presented automatic tilt scheme is effective for studying the low scattering performance of the supersonic missile V-tail.
摘要：
为研究满足区间飞行低电磁散射特性要求的超音速导弹V尾倾角,提出了一种自动倾斜方案。采用改进的退火算法确定V尾倾角的最优解,其中使用物理光学的多次散射加上衍射的物理理论来计算目标的雷达横截面（RCS）。结果表明，在水平观测场的不同飞行间隔下，V尾倾角的最优解是不同的。在前侧飞行间隔内，改变初始方位角对V尾倾角最优解的影响较小，而对导弹RCS指标的影响更大。在侧尾飞行间隔中，导弹的RCS等级很低,V尾倾角有一个最优解和几个可行解。横向飞行间隔内V尾倾角的可行解明显增加。提出的自动倾斜方案对于研究超音速导弹V尾的低散射性能是有效的。
