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首页> 外文会议>56th International Astronautical Congress 2005 vol.3 >A GLOBAL SYSTEM FOR DETECTING DANGEROUS SEAS USING GNSS BISTATIC RADAR TECHNOLOGY
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A GLOBAL SYSTEM FOR DETECTING DANGEROUS SEAS USING GNSS BISTATIC RADAR TECHNOLOGY

机译：利用GNSS双静态雷达技术检测危险区域的全球系统

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摘要

The dangers presented by the world's oceans are well known. However, it now appears that recent advances in GNSS bistatic ocean remote sensing technology may be in a position to contribute towards a solution to making the seas safer. This new technology involves utilising the signals transmitted by navigation satellites, such as those of the Global Positioning System, after they have scattered from the Earth's surface. These signals contain valuable and varied information on the Earth's oceans and are being detected regularly using the UK-DMC satellite experiment under a wide range of conditions. A low-cost constellation of this sort could be used to sense dangerous sea conditions and provide warnings to marine navigators. A system concept is presented in this paper proposing how this technology would enable low-cost satellites providing rapid Global ocean coverage. This system could be connected to existing warning networks and help prevent a wide range of future maritime disasters. Additionally, an analysis of the normalised radar cross sections being measured will be presented using the on-orbit data from the UK-DMC satellite experiment. This analysis will show that even for modest satellite configurations, it is possible to measure the sea roughness and detect dangerous sea conditions.
机译：世界海洋所带来的危险是众所周知的。但是，现在看来，GNSS双基地海洋遥感技术的最新进展可能有助于解决使海洋更安全的问题。这项新技术涉及利用导航卫星传输的信号（例如全球定位系统的信号）从地球表面散射后的信号。这些信号包含有关地球海洋的宝贵而多样的信息，并且使用UK-DMC卫星实验在各种条件下定期对其进行检测。这种低成本的星座可用于感知危险的海洋状况并向海洋导航员提供警告。本文提出了一种系统概念，提出了该技术将如何使低成本卫星提供快速的全球海洋覆盖。该系统可以连接到现有的预警网络，并有助于防止未来发生的大量海事灾难。此外，将使用UK-DMC卫星实验的在轨数据，对被测归一化雷达截面进行分析。该分析将表明，即使对于适度的卫星配置，也可以测量海面粗糙度并检测危险的海况。

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