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- 大气激光通信 大气激光通信因其波长短，发散角小，所以天线可做得很小，但大气通信易受天气、地形、地物等的影响。这种通信常用于空间载体间的通信(包括飞机对飞机、卫星对卫星、飞船对飞船等)，因为空间载体通信不存在影响传光的诸多因素。对海军来说，激光对潜通信尤为重要。蓝光或绿光穿透海水时衰减最小，波长为0.47~0.54mm的蓝光经过100m深度传播，其损耗仅为其他波长的1/100。蓝绿光在海水中的穿透能力可达600m以上，其传播方向好，不易被敌方截获，且隐蔽安全，极大地提高了其生存能力
DXCLZYZDS
- 地形测量作业指导书，用于地形测量的规范性章程，包括准备工作，实施、验收和总结。-Topographic survey work instructions for topographic normative constitution, including the preparation, implementation, acceptance and summarized.
sanjiaowang
- 用于构建海量地形三角网，东西很不错，具有很大借鉴意义-Used to build the massive terrain triangulation network, something very good, has a great significance
2012-OSGPOSGEArth-report
- 此文档是我学习OSG做的技术总结报告，详细讲解了OSG、OSGearth的编译，开发，osg原理，视点变换矩阵、全球地形解决方案等。-This document is do I learn OSG technical summary report, a detailed account of OSG, compiled OSGearth, development, osg principle viewpoint transformation matrix, the global terrain
quadruped_control
- 指导四足机器人在崎岖地形上行走时的控制程序编写(Legged structure enables quadruped robot to take advantage of the discrete regions that can support walking in the terrain, so it can adapt well to irregular or rugged terrain, which makes quadruped robot has broad appli