Time Series Analysis of Aiming Trajectory

碩士 === 中華大學 === 電機工程學系(所) === 97 === In this thesis, the relationship between the aiming procedure and the arrow on the target are analyzed, and the aiming procedure is represented as the time series which are recorded by a high speed camera at 1200 frames/sec. Then, the time series of aiming proced...

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Bibliographic Details
Main Authors: Kun-Shu Huang, 黃崑書
Other Authors: Chi-Kuang Hwang
Format: Others
Language:en_US
Published: 2009
Online Access:http://ndltd.ncl.edu.tw/handle/63586838044596347973
Description
Summary:碩士 === 中華大學 === 電機工程學系(所) === 97 === In this thesis, the relationship between the aiming procedure and the arrow on the target are analyzed, and the aiming procedure is represented as the time series which are recorded by a high speed camera at 1200 frames/sec. Then, the time series of aiming procedure is partitioned into two portions, and the first portion is designated for the main aiming trajectory as well as the second potion is related to the releasing string and arrow action. Based on the time series of the first portion, the linear time invariant auto-regressive exogenous moving average (ARMAX) process is adopted to model as the intended aiming trajectory before the releasing arrow stage. We then use the ARMAX model to predict the ideal trajectory during the releasing string and arrow stage. However, for the second potion, there exits differences between the ideally predicted trajectory and real one, and these differences are caused by the releasing string and arrow action. Thus, the relationship between this typical action and the arrow on the target can be precisely analyzed. Furthermore, parameters related to ARMAX model of the first portion and the differences existed in the second potion are defined for studying their effects on the deviation of target.