测绘学报 ›› 2014, Vol. 43 ›› Issue (10): 1005-1012.doi: 10.13485/j.cnki.11-2089.2014.0145

• 学术论文 • 上一篇    下一篇

空间坐标系变换的函数梯度描述方法

段鹏硕1,2,刘根友1,龚有亮3,郝晓光1,王娜子1,2   

  1. 1. 中国科学院测量与地球物理研究所 大地测量与地球动力学国家重点实验室
    2. 中国科学院大学
    3. 信息工程大学 地理空间信息学院
  • 收稿日期:2012-09-17 修回日期:2014-03-14 出版日期:2014-10-20 发布日期:2014-10-24
  • 通讯作者: 段鹏硕 E-mail:duanpengshuo12@163.com
  • 基金资助:

    国家自然科学基金项目

The Functional Gradient Description Method of Space Coordinate Transformation

DUAN Pengshuo1,2,LIU Gengyou1,GONG Youliang3,HAO Xiaoguang1,WANG Nazi1,2   

  1. 1. State Key Laboratory of Geodesy and Earth’s Dynamics, Institute of Geodesy and Geophysics, Chinese Academy of Sciences
    2. University of Chinese Academy of Sciences
    3. Institute of Geospatial Information, Information Engineering University
  • Received:2012-09-17 Revised:2014-03-14 Online:2014-10-20 Published:2014-10-24
  • Contact: DUAN Pengshuo E-mail:duanpengshuo12@163.com

摘要:

为了将空间坐标系变换由静态的、不随时间发生变换的情况推广到动态的、随时间发生变换以及任意角度发生变换的情况,基于单位四元数构造的旋转矩阵和罗德里格矩阵的完全等价性,揭示出空间坐标系(空间直角坐标系)变换与函数梯度的数学关系,推导出由函数梯度表示的空间坐标系变换的数学公式,在理论上说明了用函数梯度描述空间坐标系变换的方法。研究表明:在数学意义上,空间坐标系变换的本质是"场",可以用"场"的概念统一以任意角度发生旋转变换的空间坐标系变换特例。为进一步研究空间坐标系随时间发生连续变换的情况或以新的思路为运动载体定姿奠定了理论基础。

关键词: 空间坐标系变换, 函数梯度场, 完全等价性,

Abstract:

This?study?proposes?the?conception?of?coordinate?transformation?gradient?field,?which?can?realize?the?space?coordinate?transformation?from?small?angle?to?arbitrary?angle?and?from?static?to?dynamical.?

Based?on?the?equivalent?of?the?unit?quaternion?rotation?matrix?and?the?Rodrigo?matrix,?this?paper?reveals?the?mathematical?relationship?between?the?spatial?coordinate?transformation?and?the?functional?

gradient?and?derives?an?arbitrary?coordinate?transformation?formula?expressed?by?functional?gradient?in?space.?The?results?indicate?that?the?essence?of?spatial?coordinate?transformation?is?potential?field

?in?mathematic?and?we?can?unify?all?the?space?coordinate?transformations?by?using?the?conception?of?field,?which?is?the?theoretical?foundation?for?the?further?study?of?time?continuous?space?coordinate

?transformation?and?this?study?also?gives?a?new?solution?for?the?attitude?determination?of?motion?carriers.

Key words: spatial coordinate transformation, functional gradient field, complete equivalence, field

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