舰炮发射弹道修正弹测量弹道坐标转换精度研究

舰炮发射弹道修正弹后舰艇将继续航行,测量弹道的舰面雷达随之运动和摇摆,需要将 雷达测量的相对弹道坐标转换到以发射时炮口为原点的弹道坐标系中。相对弹道坐标、舰艇摇摆 角、航速、航向角等测量误差和舰艇升沉均会对转换后的弹道坐标精度产生影响,为量化诸误差对 弹道坐标的影响,建立了诸误差对弹道坐标精度影响的数学模型,并进行了仿真计算,得到了相对 弹道坐标、摇摆角、航速、航向角等测量误差和升沉对转换后弹道坐标精度的影响情况。

Research on Precision of Ballistic Coordinates of Trajectory Correction Projectile Launched from Shipborne Gun

The warship continues to move after the trajectory correction projectile is fired from shipborne gun, and the shipborne radar for trajectory measurement also continue to move and sway, and so the rela- tive trajectory measured by radar need to be transformed into the ballistic reference frame which takes the gun muzzle as an origin during firing. The precision of transformed ballistic coordinates is influenced by the warship fluctuation and the errors of radar measuring, warship sway angles, velocity and course bear- ing. In order to quantify the influence of every error on the precision of ballistic coordinates, a model of precision of ballistic coordinates was set up and simulated, and some data about the influence of warship fluctuation and the errors of radar measuring, warship sway angles, velocity and course bearing on the precision of ballistic coordinates were got.