利用惯性垂速进行飞航导弹纵向导引设计

Vertical Guidance Design of Cruise Missile Based on Inertial Vertical Velocity

在传统的基于视线角信息的纵向制导中，由于测量品质问题一般很难使用弹道倾角信息，这使得精度受到了很大影响。本文根据飞航导弹的弹道特点，通过设计合理的交接班方法，从而直接利用开环惯性垂速得到平滑的弹道倾角信息。理论上分析了这种方法的可行性，数学仿真则验证了这种方法的有效性。

In the traditional vertical guidance design, elevation angle is hardly used because of its poor measuring quality, therefore the guidance precision is affected significantly. Taking into account the feature of cruise missile＇s flight trajectory, a reasonable method is presented in the framework of elevation angle obtained by INS＇s vertical velocity. The feasibility is analyzed in theory, and numerical simulation demonstrates its effectiveness.