Parameter Estimation of the Projectile In-Bore Based on Time-Frequency Analysis
Combined time-frequency peak filtering with wavelet modulus maxima, the millimeter wave interferometer echo signal process is presented, extracting the instantaneous frequency(IF) of the projectile in-bore. Based on that, the projectile’s velocity and acceleration curves are estimated and the length of the cannon is also calculated that’s consistent with the actual, which provides a strong basis for designing and improving weapons. And this approach ,with some commonality, can also be used to extract the IF of other signals.
L. M. Wang et al., "Parameter Estimation of the Projectile In-Bore Based on Time-Frequency Analysis", Advanced Materials Research, Vols. 588-589, pp. 751-755, 2012