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Artificial satellites orbits in 2:1 resonance: GPS constellation

机译:人造卫星以2:1共振的轨道运行:GPS星座

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摘要

In this work, the resonance problem in the artificial satellites motion is studied. The development of the geopotential includes the zonal harmonics J_(20) and J_(40) and the tesseral harmonics J_(22) and J_(42). Through an averaging procedure and successive Mathieu transformations, the order of dynamical system is reduced and the final system is solved by numerical integration. In the simplified dynamical model, three critical angles are studied. The half-width of the separatrix is calculated through a linearized model which describes the behavior of the dynamical system in a neighborhood of each critical angle. Through the resonance overlap criterion the possible regular and irregular motions are investigated by the time behavior of the semi-major axis, argument of perigee and eccentricity. The largest Lyapunov exponent is used as tool to verify the chaotic motion.
机译:在这项工作中,研究了人造卫星运动中的共振问题。地势的发展包括纬向谐波J_(20)和J_(40)以及陆地谐波J_(22)和J_(42)。通过求平均过程和连续的Mathieu变换,动力学系统的阶数减少,最终系统通过数值积分求解。在简化的动力学模型中,研究了三个临界角。通过一个线性化模型来计算分离线的半角,线性化模型描述了每个临界角附近动力系统的行为。通过共振重叠准则,通过半长轴的时间行为,近地点的参数和偏心率研究了可能的规则运动和不规则运动。最大的Lyapunov指数用作验证混沌运动的工具。

著录项

  • 来源
    《Acta astronautica》 |2012年第2期|623-634|共12页
  • 作者单位

    UNESP-Univ Estadual Paulista, CEP. 12516-410 Guaratingueta-SP, Brazil;

    ITA-Inst Tecnologico de Aeronautica, 12228-900 Sao Jose dos Campos, SP, Brazil;

    ITA-Inst Tecnologico de Aeronautica, 12228-900 Sao Jose dos Campos, SP, Brazil;

    UNIFESP-Univ Federal de Sao Paulo, 12231-280 Sao Jose dos Campos, SP, Brazil;

    ITA-Inst Tecnologico de Aeronautica, 12228-900 Sao Jose dos Campos, SP, Brazil;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    artificial satellites; resonance; orbits;

    机译:人造卫星;谐振;轨道;

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