弹道学报2016，Vol.28Issue(2)：1-4,4.
基于 FFT 旋转弹丸转速数据处理方法
Rotate-speed Data Processing of High Spinning Projectile Based on FFT
摘要
Abstract
To analyze the rotate speed of spinning projectile , the hardware design of a rotate-speed measuring mechanism and its data processing method were studied .According to the principle of electro-magnetic induction , the time-domain voltage signal was changed into frequency domain by using the technology of FFT ,and then the frequency spectrum of the voltage signal with noise was analyzed .The fre-quency corresponding to the biggest spectrum component was extracted ,which was regarded as the actual rotate-speed of projectile , and other spectrum component was regarded as noise component .The actual ballistic experiment was carried out ,and the experimental data was processed by the proposed method ,and the data of ratate speed varying with time was obtained .The result shows that the proposed method is effective,and it offers reference for practical application .关键词
旋转弹丸/转速测量/电磁感应/傅里叶变换Key words
spinning projectile/rotate-speed measuring/electromagnetic induction/FFT分类
军事科技引用本文复制引用
管军,易文俊,常思江,刘世平..基于 FFT 旋转弹丸转速数据处理方法[J].弹道学报,2016,28(2):1-4,4.基金项目
国家自然科学基金项目 （）
