4篇
您的检索式：作者名="Marco Duca"
|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Measurement of bullet impact conditions using automated in-flight photography system显示文摘Knowledge of impact conditions is critical to evaluating the terminal impact performance of a projectile.For a small caliber bullet,in-flight velocity has been precisely measured for decades using detection screens,but accurately quantifying the orientation of the bullet on a target has been more challenging.This report introduces the Automated Small-Arms Photogrammetry(ASAP)analysis method used to measure,model,and predict the orientation of a small caliber bullet before reaching an impact surface.ASAP uses advanced hardware developed by Sydor Technologies to record a series of infrared digital photographs.Individual images(four orthogonal pairs)are processed using computer vision algorithms to quantify the orientation of the projectile and re-project its precise position and orientation into a three-dimensional muzzle-fixed coordinate system.An epicyclic motion model is fit to the measured data,and the epicyclic motion is extrapolated to the target location.Analysis results are fairly immediate and may be reviewed during testing.Prove-out demonstrations have shown that the impact-angle prediction capability is less than six hundredths of a degree for the 5.56 mm ball round tested.Keywords:Yaw,Terminal ballistics,Exterior ballistics,Test&evaluation,Computer vision,Image processing,Angle of | Ryan Decker Marco Duca Shawn Spickert-Fulton | 2017 | Defence Technology(防务技术)2017，13，4： | 3 |
| 2 | Global corporate bond issuance: What role for US quan- titative easing?显示文摘 | Marco Lo Duca Giulio Nicoletti Ariadna Vidal Mar- tinez | 2016 | Journal of International Money and Finance2016，60，2： | 1 |
| 3 | Modelling the Time Varying Determinants of Portfolio Flows to Emerging Markets 显示文摘 | Marco Lo Duca | 2012 | Ssm Electronic Jouma12012，，8： | 1 |
| 4 | IBD care in Europe: A comparative audit of the inpatient management of Crohn’s disease and ulcerative colitis using the national UK IBD audit tool显示文摘 | Andrea Cassinotti Satish Keshav Sandro Ardizzone Neil Mortensen Gianluca Sampietro Paolo Fociani Piergiorgio Duca Bruce George Marco Lazzaroni Gianpiero Manes Brian Warren Diego Foschi Gianluca Vago Gabriele Bianchi Porro Simon Travis | 2009 | Journal of Crohn’s and Colitis2009，，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员