MATEC Web Conf.
Volume 128, 20172017 International Conference on Electronic Information Technology and Computer Engineering (EITCE 2017)
|Number of page(s)||4|
|Published online||25 October 2017|
A Method of Initial Velocity Measurement for Rocket Projectile
1 School of Electronic and Optical Engineering, Nanjing University of Science and Technology, 210094, Nanjing, China
2 School of Electronic and Optical Engineering, Nanjing University of Science and Technology, 210094, Nanjing, China
3 School of Electronic and Optical Engineering, Nanjing University of Science and Technology, 210094, Nanjing, China
a Corresponding author: firstname.lastname@example.org
In this paper, a novel method is proposed to measure the initial velocity of the rocket based on STFT (the short-time Fourier transform) and the WT (wavelet transform). The radar echo signal processing procedure involves the following steps: sampling process, overlapping windows, wavelet decomposition and reconstruction, computing FFT (Fast Fourier Transform) and spectrum analysis, power spectrum peak detection. Then, according to the peak of the detection power spectrum, the corresponding Doppler frequency is obtained. Finally, on the basis of the relationship between Doppler frequency and instantaneous velocity, the V-T curve is drawn in MATLAB to obtain the initial velocity of the rocket muzzle.
© The authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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