对一类具有固定舵偏角的双旋弹，基于周期平均的思想推导了平均控制力幅值与执行机构电机旋转轨迹的关系，并据此提出一种使周期平均控制力幅值和方向可调的方案，分析了该方案对执行机构电机的性能要求。以双旋火箭弹为模型，通过七自由度（DOF）弹道仿真，对双旋火箭弹在该方案下的侧向修正能力、高度控制效果和落点控制效果分别进行了分析以验证该方案的可行性。结果表明：相比于在飞行过程中若干次使舵面停于所需方位的传统控制方式，基于周期平均的控制策略可以使平均控制力幅值和方向连续变化，实现固定舵双旋弹制导与控制。
A control method for a class of fixed-canard dual-spin rockets is proposed to adjust the magnitude and the direction of the average control force. The method is presented according to the relationship between the magnitude of the average control force and the spinning trajectory of the actuator motor. This relationship is calculated based on the idea of the period average. Based on a simulation of 7 Degrees of Freedom (DOF) trajectory, the lateral correction ability and the effects of the height control and the drop point control of the fixed-canard dual-spin rocket are analyzed to verify the feasibility of the control method proposed. The results show that in contrast to the traditional control method of holding the canard to the direction needed several times during the flight, the control method based on the period average can continuously adjust the magnitude and the direction of the average control force, so as to realize the guidance and control of the fixed-canard dual-spin rocket.
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