Guidance Law Design for a Class of Dual-Spin Mortars
Guidance Law Design for a Class of Dual-Spin Mortars
复制标题
一类双旋迫击炮制导律设计
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
Zhi
中科院分区：
文献类型：
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作者：
Qing;Wei Song;Yi Wang;Zhi
为了最大限度地降低成本，最大限度地提高易用性，设计了一种只依赖GPS接收器和地磁测量的双自旋迫击炮。但是，当航程较小时，存在修正权威性低、弹道弯曲等问题。详细介绍了该迫击炮的制导规律设计。针对上行段和下行段分别设计了不同的制导律。通过在垂直面上采用变参数制导律，在侧面上进行补偿，解决了上述问题。对基于地磁测量的滚转角解算算法进行了验证，实验结果证明是有效的。为了验证该方法的有效性，建立了七自由度刚体弹道模型，并进行了半实物仿真。在得到执行器的传递函数后，对壳体的控制模型进行了改进。蒙特卡罗仿真结果表明，该制导律是合理的，可以有效地控制迫击炮。
To minimize the cost and maximize the ease of use, a class of dual-spin mortars is designed which only rely on GPS receiver and geomagnetic measurements. However, there are some problems to be solved when the range is small, such as low correction authority and trajectory bending. Guidance law design for this mortar is detailed. Different guidance laws were designed for the ascending and descending segments, respectively. By taking variable parameter guidance law in the vertical plane and using compensation in the lateral plane, the problems mentioned above were resolved. Roll angle resolving algorithms with geomagnetic measurements were demonstrated and the experiment results proved to be effective. In order to verify the effectiveness, Seven-Degrees-of-Freedom (7-DOF) rigid ballistic model were established and hardware in the loop simulation was introduced. After the transform function of the actuator was obtained, the control model of the shell was improved. The results of the Monte Carlo simulation demonstrate that the guidance law is suitable and the mortar can be effectively controlled.