常规弹药转速测量方法仿真研究  

The Simulation on Rotating Speed Measurement Method of Conventional Ammunition

作　　者：尚剑宇[1] 张晓明 黄建林[1] 李永慧[1] 郝智利 刘俊[1,2] 

机构地区：[1]中北大学电子测试技术国家重点实验室,太原030051 [2]中北大学仪器科学与动态测试教育部重点实验室,太原030051 [3]山西省大气探测技术保障中心,太原030002

出　　处：《弹箭与制导学报》2012年第4期99-102,108,共5页Journal of Projectiles,Rockets,Missiles and Guidance

基　　金：国家自然科学基金(61004217)资助

摘　　要：常规弹药制导化改造过程中转速的测量尤为关键。针对常规弹转速高的特点,提出一种基于捷联式单轴磁传感器的常规弹药转速测量方法。在建立了弹丸质点外弹道模型、载体磁场模型和单轴磁传感器模型的基础上,使用Matlab对磁传感器输出信号进行仿真,利用滑动窗口CZT变换方法由磁测信号中提取弹丸转速信息。最后对仿真结果做误差分析,验证了此种转速测量方法的可行性。In the process of design and research on simply guided bomb, the measurement of rotating speed is particularly significant. Ac- cording to the high rotating speed of conventional ammunition, a method of measuring rotating speed based on strap-down single-axis mag- netic sensors was presented. The mass point trajectory model and vehicular magnetic field model, as well as the single-axis magnetic sen- sors model were established. Then the output data of magnetic sensors was simulated by Matlab. The bullet rotating speed data was extrac- ted from the magnetic signal based on Chirp-Z Transform （ CZT）. Finally, with the error analysis of simulation results, the test results were presented. The experiment results show that the rotating speed measurement method used in the simulation is feasible.

关 键 词：灵巧弹药 磁传感器 转速测量 MATLAB仿真 CZT变换 

分 类 号：TJ410.6[兵器科学与技术—火炮、自动武器与弹药工程]