Extracting Method of Projectile Spin Speed based on Hilbert-Huang Transform

摘要：

　　Making use of micro Doppler Effect measured by continuous wave radar (CW radar), the micro Doppler modulation mathematical model of radar echo cased by projectile rotation is established, and the analytic relationship between projectile rotation and micro motion is deduced. Based on Hilbert-Huang Transform (HHT), a new method of extracting spin speed is proposed to instead the traditional FFT method. Through the simulation, the new method is verified to be effective. This method is applied to extracting spin speed form the measured data, and its result is compared to the result calculated by FFT method. The result shows that the new method could effectively extract spin speed, and accurately describe the change of spin speed along with time.

关键词： micro Doppler effect CW radar HHT spin speed FFT

作者: Duan Peng-wei Liu Zhi-xue Gong Zhi-hua Leng Xue-bing Dong Li-tao

作者单位: Baicheng Ordnance Test Center of China, Baicheng 137001, Jilin

会议类型: 国际会议

会议名称: 2015 Joint International Mechanical,Electronic and Information Technology Conference(JIMET 2015)(2015 联合国际机械,电子与信息技术国际会议)

会议地点: 重庆

会议语种:英文

页码: 1071-1075

在线出版日期: 2015-12-18（万方平台首次上网日期，不代表论文的发表时间）