文化大學機構典藏 CCUR:Item 987654321/3089
English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 46867/50733 (92%)
造访人次 : 11891232      在线人数 : 630
RC Version 6.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
搜寻范围 查询小技巧:
  • 您可在西文检索词汇前后加上"双引号",以获取较精准的检索结果
  • 若欲以作者姓名搜寻,建议至进阶搜寻限定作者字段,可获得较完整数据
  • 进阶搜寻
    主页登入上传说明关于CCUR管理 到手机版


    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://irlib.pccu.edu.tw/handle/987654321/3089


    题名: 以超寬頻元件用於動作追蹤的方法論探討
    其它题名: The Methodology of Using UWB Device for Motion Capture Application
    作者: 劉宗慶
    贡献者: 電機系
    关键词: 動作擷取
    超寬頻元件
    波數行成
    Motion capture
    VWB
    Beamforming
    日期: 2007-06
    上传时间: 2010-05-11 09:10:28 (UTC+8)
    摘要: 動作擷取可被用來做電腦動畫與虛擬實境的設計,並應用在影片、娛樂、遊戲、訓練、醫學開刀與教育,因此最近各種的動作擷取方法的研究,被廣泛的提出與討論。本計畫提出一全新設計的動作擷取系統,該系統使用一線性超寬頻(UWB)陣列天線作發射,另一單根天線作接收。陣列天線最外兩根天線是用來做快速初始位置的粗略估計,一旦位置估計確定即進入行動追蹤階段。整組線性陣列天線被用來產生發射UWB信號的波束合成波,並聚焦到欲追蹤之點。波束被電子式的操控去追蹤與分辨移動部位的變化。其中我們提出的一種空時信號處理的方法,並推導設計其數學與運算模式,此架構可使用System View與Matlab Simulink軟體去模擬其有效性與性能,將於未來討論。

    Motion capture research has been addressed widely recently due to it can be applied to computer animation and virtual reality design for various purposes such as filming, entertainment, training, medical surgery and education. In this paper we deal with the computational feasibility study of a newly designed motion capture system using a linear UWB impulse phase array. The system consists of a linear transmit phase array antenna and a single receive antenna. The strategy is to first use the outer two antennas of the array for the initial fast coarse location estimate then follows by motion tracking using entire array. While in the locationing process, the outer two antennas simply act as two omni antennas. No beamforming strategy is used. Once the coarse location has been estimated the system enters into the motion tracking phase, and an active transmit space-time beamforming by the entire phase array antenna is used. The beam is electronically steered to the desired spots (directions and ranges) by the previous location estimate from the system. This is then served as the next estimate set up and operates recursively before it converges. We propose only the a space-time processing methodology for implementing the particular transmit beamforming. The designed system can be simulated by the System View and Matlab Simulink easily to test the availability and performance and will be addressed later.
    關聯: 華岡工程學報 21期 (2007 / 06 / 01) , P63 - 68
    显示于类别:[工學院] 學報-華岡工程學報

    文件中的档案:

    档案 描述 大小格式浏览次数
    index.html0KbText467检视/开启


    在CCUR中所有的数据项都受到原著作权保护.


    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - 回馈