太赫兹科学与电子信息学报, 2016, 14 (5): 717, 网络出版: 2016-11-30
基于InSAR的三维地形匹配导航技术的研究与实现
Implementation of 3-D terrain matching navigation technology based on InSAR data
干涉合成孔径雷达 三维地形匹配 地形辅助导航系统 3-D Zernike 矩 可视化仿真 Interferometric Synthetic Aperture Radar 3-D terrain matching terrain-aided navigation system 3-D Zernike moments visual simulation
摘要
研究了一种以干涉合成孔径雷达(InSAR)信息为基础的三维地形匹配导航系统,该系统采用基于3-D Zernike 矩的三维地形匹配算法,同时针对3-D Zernike 矩在地形匹配中计算实时性差的问题进行了改进。为验证系统的有效性和算法性能,搭建了基于VC++和OpenSceneGraph 的三维可视化软件仿真平台。仿真结果表明,基于3-D Zernike 矩的三维地形匹配算法定位精确度高,对地形的适应能力强,算法的实时性问题得到了良好解决,系统具有较高的工程实用价值。
Abstract
A 3-D terrain matching navigation system based on Interferometric Synthetic Aperture Radar(InSAR) information is proposed, wherein the system employs a 3-D terrain matching algorithm based on 3-D Zernike moments. A new method for solving the problem of huge computation of 3-D Zernike moments in use of terrain matching and the problem of rotation adaptability is provided. In order to verify the effectiveness and the performances of the algorithm, a 3-D visual software simulation platform based on C++ and OpenSceneGraph(OSG) is constructed. Simulation results show that the 3-D terrain matching algorithm based on 3-D Zernike moments is high in positioning precision and strong in terrain adaptability, problems of real-time performance are well solved, and high practical value in engineering is obtained by the system.
尹智龙, 王可东, 高意峰. 基于InSAR的三维地形匹配导航技术的研究与实现[J]. 太赫兹科学与电子信息学报, 2016, 14(5): 717. YIN Zhilong, WANG Kedong, GAO Yifeng. Implementation of 3-D terrain matching navigation technology based on InSAR data[J]. Journal of terahertz science and electronic information technology, 2016, 14(5): 717.