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相关概念视频

Methods of Obtaining Topography01:25

Methods of Obtaining Topography

498
Topography involves measuring and mapping land elevations, natural features, and artificial structures to create accurate representations of the terrain. Topographic surveying relies on traditional and modern methods, each with distinct advantages and limitations.Traditional Surveying Methods:Transit stadia surveys and plane table surveys were widely used traditional surveying methods. These techniques relied on instruments like theodolites and stadia rods for measuring distances and angles,...
498
Types of Global Positioning System Surveys01:30

Types of Global Positioning System Surveys

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GPS surveying methods vary in application, accuracy, and data collection techniques, catering to diverse surveying and mapping needs. Static GPS, kinematic GPS, and real-time kinematic (RTK) surveying are widely used. Each technique offers distinct advantages.Static GPS involves placing one receiver at a known reference point and another at the target point. It collects exact positional data by observing multiple satellite ranges over an extended period, achieving centimeter-level accuracy for...
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相关实验视频

Updated: Apr 16, 2026

Scattering And Absorption of Light in Planetary Regoliths
11:34

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对于欧洲国家任务概念的自主地表采样.

J J Bowkett1, S A Chien1, Y Marchetti1

  • 1Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA.

Science robotics
|May 21, 2025
PubMed
概括

开发了一种新的自主采样系统,用于在木星的卫星欧洲上潜在的生命探测任务. 阿拉斯加的实地测试证明了该系统在具有挑战性的地球外表面条件下运行的能力.

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Simulating Imaging of Large Scale Radio Arrays on the Lunar Surface
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相关实验视频

Last Updated: Apr 16, 2026

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科学领域:

  • 行星科学 行星科学
  • 天体生物学 天体生物学
  • 机器人技术和自主系统

背景情况:

  • 木星的卫星欧罗巴是外星生命的主要候选人,因为它的地下海洋.
  • 登陆欧洲的任务面临重大挑战,包括未知的表面条件,有限的通信窗口和恶劣的环境因素,如辐射和电力限制.
  • 开发强大的采样硬件和自主软件对于任何欧洲着陆器任务的成功至关重要.

研究的目的:

  • 描述欧洲着陆器任务采样硬件和自主软件的开发.
  • 解决欧洲在未知和可变的表面条件下采集样本的关键挑战.
  • 为了证明欧洲表面任务的自主端到端采样操作的可行性.

主要方法:

  • 一个多年的开发工作,包括模拟和测试环境.
  • 专门采样硬件的设计和测试,能够在各种条件下工作.
  • 开发自主软件来管理采样操作.
  • 美国阿拉斯加马塔努斯卡冰川的战场活动,模拟了欧罗巴的环境.

主要成果:

  • 成功演示了使用代表性着陆器硬件的自主端到端采样活动.
  • 验证开发的采样系统能够处理多样化和具有挑战性的表面条件的能力.
  • 对于通信有限的任务来说,自主操作的概念验证至关重要.

结论:

  • 开发的自主采样系统是实现登陆任务到欧洲的重要一步.
  • 该系统能够自主运行并适应未知的条件,提高了任务可行性.
  • 这项技术为未来的现场勘探和寻找地球之外的生命铺平了道路.