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首页> 外文会议>Guidance and Control 2008 >Under the Radar: Trials and Tribulations of Landing on Mars
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Under the Radar: Trials and Tribulations of Landing on Mars

机译：雷达之下：登陆火星的考验与考验

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The Phoenix Mars Scout mission incorporates a radar altimeter/velocimeter which provides surface-relative range and velocity during the terminal descent stage of Entry, Descent, and Landing (EDL). The radar was not designed to be used as a landing radar for a Mars mission and, in fact, was adapted from an altimeter used in fighter aircraft. To ensure that this critical component of the landing system operates properly during terminal descent and meets the performance requirements of the landing system, a comprehensive test campaign was initiated. The test campaign included numerous helicopter drop tests, sophisticated radar target stimulator tests, and a detailed software simulation of the radar and landing system. Several surprising and important radar/flight system interaction issues were revealed during the test campaign, a number of which would have been catastrophic had they occurred during EDL. In this paper we provide a brief overview of the Phoenix mission, a description of the landing system and the radar, and a detailed discussion of the test campaign, problems revealed during testing, and how these issues were addressed via EDL sequence, radar, or lander flight system modifications.
机译：凤凰号火星侦察兵任务结合了雷达高度计/速度计，可在进入，下降和着陆（EDL）的最终下降阶段提供相对表面的范围和速度。该雷达并非旨在用作火星任务的着陆雷达，实际上是从战斗机中使用的高度计改装而来的。为了确保着陆系统的这一关键组件在终端下降期间正常运行并满足着陆系统的性能要求，发起了一项全面的测试活动。测试活动包括许多直升机坠落测试，复杂的雷达目标刺激器测试以及雷达和着陆系统的详细软件仿真。在测试活动中发现了一些令人惊讶且重要的雷达/飞行系统交互问题，如果在EDL期间发生了许多灾难性事件。在本文中，我们简要介绍了Phoenix任务，对着陆系统和雷达的描述，并详细讨论了测试活动，测试过程中发现的问题以及如何通过EDL序列，雷达或雷达解决这些问题。着陆飞行系统的修改。

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