Effect of topographic height difference on the technological calculation of natural gas transportation pipeline;
地形高程差对天然气输送管道工艺计算的影响
The concept of terrain entropy and terrain difference entropy underwater in the paper is introduced the terrain match algorithm,and design the algorithm of based on terrain entropy and terrain variance entropy,and the algorithm is used terrain-aided navigation.
文中将地形熵和地形差异熵的概念引入到水下地形匹配算法中,设计了基于地形熵和地形差异熵的综合地形匹配算法,并将该算法应用于水下地形辅助导航系统中,经验证该算法取得了良好的纠正惯导定位的效果,实现了水下地形辅助导航的任务。
But the precision of traditional terrain entropy matching algorithm was not good,so terrain variance entropy was .
基于熵的算法对于地形复杂区域的匹配分析是快速有效的,但传统的地形熵算法匹配精度不高,本文引入了地形差异熵的概念并对其进行改进,在选定的地形区域使用MATLAB软件进行了仿真研究。
Method of creating extra large and scalable terrain model
创建超大可扩展地形模型的方法
This paper studys the terrain following for low penetration aircraft,and establishes the model of ALCM s clobber probability based on the Butterworth terrain model.
文中研究飞行器低空突防的地形跟随问题,基于布特沃斯地形模型,建立了飞行器撞地概率仿真模型,在各典型巡航条件下进行了大量的撞地概率仿真计算,并对仿真结果进行了深入地统计分析和研究,在此基础上,设计了相应的控制系统并确定了合理的控制参数,对飞行器地形跟随进行了飞行仿真。
How to construct terrain models and their texture is a research keystone.
方便、有效地建立地形模型及其纹理是地形景观研究的重点。
The remote sensing information model of geography is based on topographical model, physical model, and mathematical model.
地理遥感信息模型是在地形模型、理模型、学模型的基础上提出的一种新型模型。
The Research on the Real-time Rendering Technology of Large-scale Terrain Model;
大规模复杂地形模型的实时绘制技术研究
A New Method for Rainfall Runoff Simulation Based On Dynamic Digital Terrain Model
基于动态数字地形模型的流域产汇流模拟方法
Research and Application of Visualization of Terrain Model and Culture Model Integration in 3D Virtual Navigation;
虚拟三维漫游中地形模型和地物模型集成的可视化研究与实现
Remote Sensing Terrain Model of Mountain Land Vegetation NPP
基于RS的山地植被NPP遥感地形模型研究
Terrain modeling study based on the triangular grid digital elevation model
基于三角形网格的数字高程模型地形建模研究
The Extraction of Topographic Patterns Based on Digital Elevation Model;
基于数字高程模型（DEM）的地形特征提取
Research on VRML-Based Large-Scale Terrain Modeling;
基于VRML的大型地形环境建模研究
A Research on the Organizational Model of Planning Destination Image Based on Social Participation;
论旅游地形象策划的参与型组织模式
Research of the seamless fusion algorithm between road model and terrain model based on TIN
道路模型与TIN地形无缝融合算法研究
Creating Finite Element Model By Using The CAD Contour Line
利用CAD地形线图进行有限元模型建立
Massive terrain navigation search model based on P2P
基于P2P的海量地形漫游搜索模型
Review of the research on topographic survey methods for physical river models in China
国内河工模型地形测量方法研究综述
Terrain Slope Estimation Method Based on Polarization Compensation and Lambertian Model
极化补偿—朗伯模型地形坡度估计方法
The analysis of the model of fractal Brownian motion and its applications to terrain
分形布朗运动模型及其在地形分析中的应用
A Simulation on the Accuracy of DEM Terrain Representation
数字高程模型地形描述精度量化模拟研究
Research on LOD Model Simplification and Real-time Rendering of Large-scale Terrain
大规模地形LOD模型简化与实时绘制方法研究
The Modeling Example of 3D Terrain Digital Elevation Model on GIS
基于GIS三维地形的数字高程模型建模实例