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相关概念视频

Design Example: Identifying the Locations of Monuments in the Field Using Global Positioning System Device01:30

Design Example: Identifying the Locations of Monuments in the Field Using Global Positioning System Device

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Surveyors use Global Positioning System (GPS) technology to measure the precise location and elevation of points on Earth. In a recent survey, GPS receivers were used to determine the coordinates and elevations of two park monuments. The process involved careful mission planning, data collection, and correction to ensure accuracy. The survey began with mission planning to identify optimal satellite visibility and minimize Position Dilution of Precision (PDOP). A geodetic control point...
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Errors in Global Positioning System01:26

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Global Positioning System (GPS) technology has revolutionized navigation and positioning, but its accuracy is often compromised by various errors. These errors, stemming from environmental, satellite, and receiver-related factors, require careful mitigation to ensure reliable performance across applications.Atmospheric ErrorsGPS signals travel through the Earth’s ionosphere and troposphere, introducing delays which affect accuracy. The ionosphere is strongly influenced by charged particles,...
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Introduction to Global Positioning System01:30

Introduction to Global Positioning System

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The Global Positioning System (GPS) revolutionized positioning on Earth, providing precise location data through satellite ranging. The GPS system was developed in 1978 by the U.S. Department of Defense  for military use, and it became available for civilian applications in 1983, transforming fields including navigation, fleet management, and time synchronization for telecommunications systems.GPS consists of satellites in medium Earth orbit, about 20,200 kilometers above the surface,...
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Field Application of Global Positioning System01:28

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The Global Positioning System (GPS) has become an indispensable tool in fieldwork, offering unparalleled precision and efficiency for surveying, navigation, and infrastructure development. By harnessing signals from a constellation of satellites, GPS receivers determine the location of objects with remarkable speed and accuracy, often completing calculations within a second.Advantages of Modern GPS TechnologyContemporary GPS receivers are designed to meet the practical demands of field...
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微卫星系统的设计,集成和飞行.

Philip Naumann1, Timothy Sands2

  • 1Systems Engineering Program, Cornell University, Ithaca, NY 14853, USA.

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概括

阿尔法任务展示了转向较小,模块化纳米卫星的转变,以实现成本效益高的太空探索. 本研究详细介绍了一颗试点卫星的系统工程,重点关注态度控制和无线电通信,以提高任务准备.

关键词:
在 CDMA 中,CDMA 是 CDMA 的代码.美国GFSKGFSK在 IMU 调时,调整 IMU.凯恩阻尼器 凯恩阻尼器在MBSE中,MBSE是MBSE.在PD控制器控制器.无线电射频通信是RF通信的一种方式.这是RTL-SDR.这就是TI-RTOS.小的GS小的GS小的控制器优化 控制器建模 控制器建模控制器验证和验证的验证和验证.预期错误纠正 预期错误纠正匹配的过器匹配的过器系统工程是系统工程.

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科学领域:

  • 航空航天工程 航空航天工程
  • 卫星系统设计 卫星系统设计

背景情况:

  • 航空航天行业正在从大型定制卫星转向小型模块化纳米卫星.
  • 商用现成组件提高了可靠性,降低了任务成本.
  • 纳米卫星的开发提供了模块化和较低的风险,可以快速部署.

研究的目的:

  • 讨论系统工程方法,用于建模和成熟的试点纳米卫星的设计.
  • 专注于载体纳米卫星的态度控制系统和女性卫星的射频通信.
  • 为卫星部署成熟技术准备水平 (TRL).

主要方法:

  • 系统工程用于建模和设计成熟.
  • 为载体纳米卫星开发和测试态度控制系统.
  • 实施和测试用于女性卫星的射频通信系统.

主要成果:

  • 实现了ChipSat到ChipSat和ChipSat到地面站的通信.
  • 成功实现了数据包创建,错误纠正,序言附加和信号过.
  • 完成了控制器可追溯/验证,软件/硬件测试和惯性测量单元调整.

结论:

  • 阿尔法任务试点卫星的设计已经通过严格的系统工程显著成熟.
  • 关键的子系统,包括态度控制和射频通信,已经显示出准备部署的状态.
  • 该项目提升了模块化纳米卫星群的技术准备水平 (TRL).