Elliptical orbit satellite, system, and deployment with controllable
coverage characteristics
    2.
    发明授权
    Elliptical orbit satellite, system, and deployment with controllable coverage characteristics 失效
    椭圆轨道卫星,系统和部署具有可控的覆盖特征

    公开(公告)号:US5582367A

    公开(公告)日:1996-12-10

    申请号:US197260

    申请日:1994-02-16

    摘要: A special set of elliptical satellite orbits are described which allow preferential coverage of one parameter over another. According to a first modification, the orbits are retrograde, and preferentially cover one geographical location or time of day as compared with another. A second modification uses prograde orbits and allows the apogee of the orbit to be offset a constant amount with respect to the sun, to thereby cover a different time of day relative to the others. According to a special preferred mode of the invention, the apogee is always pointing towards the sun.

    摘要翻译: 描述了一组特殊的椭圆卫星轨道,其允许优先覆盖另一个参数。 根据第一修改,轨道是逆行的,并且优先地覆盖一个地理位置或与另一个相比的时间。 第二种修改使用前进轨道并允许轨道的远地点相对于太阳偏移恒定的量,从而覆盖相对于其他天的不同时间。 根据本发明的特别优选方式,远地点总是指向太阳。

    Elliptical orbit satellite, system, and deployment with controllable
coverage characteristics
    3.
    发明授权
    Elliptical orbit satellite, system, and deployment with controllable coverage characteristics 失效
    椭圆轨道卫星,系统和部署具有可控的覆盖特征

    公开(公告)号:US5669585A

    公开(公告)日:1997-09-23

    申请号:US746911

    申请日:1996-11-19

    摘要: A special set of elliptical satellite orbits are described which allow preferential coverage of one parameter over another. According to a first modification, the orbits are retrograde, and preferentially cover one geographical location or time of day as compared with another. A second modification uses prograde orbits and allows the apogee of the orbit to be offset a constant amount with respect to the sun, to thereby cover a different time of day relative to the others. According to a special preferred mode of the invention, the apogee is always pointing towards the sun.

    摘要翻译: 描述了一组特殊的椭圆卫星轨道,其允许优先覆盖另一个参数。 根据第一修改,轨道是逆行的,并且优先地覆盖一个地理位置或与另一个相比的时间。 第二种修改使用前进轨道并允许轨道的远地点相对于太阳偏移恒定的量,从而覆盖相对于其他天的不同时间。 根据本发明的特别优选方式,远地点总是指向太阳。

    Antenna null
    4.
    发明授权
    Antenna null 失效
    天线无效

    公开(公告)号:US06766166B1

    公开(公告)日:2004-07-20

    申请号:US09160634

    申请日:1998-09-23

    申请人: John E. Draim

    发明人: John E. Draim

    IPC分类号: H04H100

    CPC分类号: H04H40/90 H01Q3/08

    摘要: Antenna steering to put an interfering satellite in the null of the main antenna beam.

    摘要翻译: 天线转向将干扰卫星置于主天线波束的零点。

    Adaptively positioned solar array
    5.
    发明授权
    Adaptively positioned solar array 有权
    适应性太阳能阵列

    公开(公告)号:US06227497B1

    公开(公告)日:2001-05-08

    申请号:US09378564

    申请日:1999-08-19

    申请人: John E. Draim

    发明人: John E. Draim

    IPC分类号: B64G144

    摘要: Solar array with movable parts that are faced toward the sun during times of the orbit distant from the debris field. When the orbit is within the debris field, the panels are faced edge on to the direction of the orbit.

    摘要翻译: 具有可移动部件的太阳能阵列,在距离碎片场的轨道的时间期间面向太阳。 当轨道在碎片场内时,面板面向轨道方向的边缘。

    Satellite continuous coverage constellations
    6.
    发明授权
    Satellite continuous coverage constellations 失效
    卫星连续覆盖星座

    公开(公告)号:US4809935A

    公开(公告)日:1989-03-07

    申请号:US760905

    申请日:1985-07-31

    申请人: John E. Draim

    发明人: John E. Draim

    IPC分类号: B64G1/10 B64G1/24 H04B7/195

    摘要: Satellite hemispheric and global coverage with a minimum number of satellites includes a three-satellite elliptic orbit constellation covering the entire Northern (or Southern) Hemisphere and a four-satellite constellation giving continuous global coverage.

    摘要翻译: 具有最少卫星数的卫星半球和全球覆盖包括覆盖整个北部(或南部)半球的三卫星椭圆轨道星座,以及持续全球覆盖的四星座星座。

    System and method for implementing a constellation of non-geostationary satellites that does not interfere with the geostationary satellite ring
    7.
    发明授权
    System and method for implementing a constellation of non-geostationary satellites that does not interfere with the geostationary satellite ring 失效
    用于实施不干扰对地静止卫星环的非对地静止卫星星座的系统和方法

    公开(公告)号:US06701126B1

    公开(公告)日:2004-03-02

    申请号:US09709280

    申请日:2000-11-13

    申请人: John E. Draim

    发明人: John E. Draim

    IPC分类号: H04B7185

    摘要: Provided is an improved system and method for implementing a constellation of satellites in inclined elliptical orbits. The satellites are operated during the portion of their orbits near apogee to emulate the characteristics of geostationary satellites. The orbits are configured to form a number of closely spaced repeating ground tracks around the earth. In each ground track the satellites operate only in arcs well above or below the equator to provide a large number of non-geostationary orbital slots that substantially increase global satellite capacity without interfering with the existing geostationary satellite ring. Minimum spacing is maintained between satellites in each active arc and between satellites in the active arcs of adjacent ground tracks to ensure that the satellites in the non-geostationary constellation do not interfere with each other.

    摘要翻译: 提供了一种改进的系统和方法,用于实现倾斜椭圆轨道中的卫星星座。 卫星在靠近远地点的轨道部分运行,以模拟对地静止卫星的特点。 轨道被配置为在地球周围形成多个紧密间隔的重复地面轨道。 在每个地面轨道上,卫星只能在赤道上方或下方的弧线上运行,以提供大量非对地静止轨道时隙,大大增加全球卫星的能力,而不会干扰现有的地球静止卫星环。 在每个有效电弧中的卫星和相邻地面轨道的有效弧中的卫星之间保持最小间距,以确保非对地静止星座中的卫星不会相互干扰。

    Dual ring array of satellites
    8.
    发明授权
    Dual ring array of satellites 失效
    双环阵列卫星

    公开(公告)号:US5979832A

    公开(公告)日:1999-11-09

    申请号:US108871

    申请日:1998-07-01

    申请人: John E. Draim

    发明人: John E. Draim

    摘要: Array of satellites in a planetary gear arrangement. One ring is circular, and within the other ring, which is elliptical. The circular and elliptical rings overlap at a tangent point. At that point, the satellites are evenly spaced for at least a specified parameter, e.g., time of day or geographical location.

    摘要翻译: 行星齿轮装置中的卫星阵列。 一个环是圆形的,在另一个环中是椭圆形的。 圆形和椭圆形环在切点处重叠。 在这一点上,卫星至少是指定的参数,例如一天中的时间或地理位置。

    Tetrahedral multi-satellite continuous-coverage constellation
    9.
    发明授权
    Tetrahedral multi-satellite continuous-coverage constellation 失效
    四面体多卫星连续覆盖星座

    公开(公告)号:US4854527A

    公开(公告)日:1989-08-08

    申请号:US756635

    申请日:1985-07-19

    申请人: John E. Draim

    发明人: John E. Draim

    摘要: An improved, optimized, four-satellite tetrahedral constellation using common period elliptic orbits is disclosed which provides continuous global coverage (i.e., any point on the earth can always maintain line-of-sight visibilty with at least one of the four satellites). The constellation consists of two satellites having perigees in one hemisphere, and two satellites having perigees in the other hemisphere. All satellites have a common period, and positive visibility angles can be maintained down to a constellation (or satellite) period of 27 hours. At higher altitudes (longer periods) both the minimum visibility angles and the mean visibility angles will tend to increase. Replication may be provided by overlaying arrays with convenient offset. The invention is applicable to any celestial body wherein two satellites have two periapses in one hemisphere and the other two satellites have periapses in the other hemisphere.

    摘要翻译: 公开了使用公共周期椭圆轨道的改进的,优化的四卫星四面体星座,其提供连续的全局覆盖(即,地球上的任何点总是能够利用四颗卫星中的至少一个保持视线可见性)。 星座由两颗卫星组成,一颗半球具有近地点卫星,两颗卫星在另一半球内具有近地。虫。 所有的卫星都有一个共同的周期,并且可以将正的可见度角度维持到27小时的星座(或卫星)周期。 在较高的海拔高度(较长的时间段),最小可见度角度和平均视角将趋于增加。 可以通过以方便的偏移覆盖数组来提供复制。 本发明适用于任何天体,其中两个卫星在一个半球中具有两个穹窿,另外两颗卫星在另一半球中具有穹窿。

    System and method for implementing a constellation of non-geostationary satellites that provides simplified satellite tracking
    10.
    发明授权
    System and method for implementing a constellation of non-geostationary satellites that provides simplified satellite tracking 失效
    实现非对地静止卫星星座的系统和方法,提供简化的卫星跟踪

    公开(公告)号:US06714521B2

    公开(公告)日:2004-03-30

    申请号:US09750047

    申请日:2000-12-29

    申请人: John E. Draim

    发明人: John E. Draim

    IPC分类号: H04B7185

    摘要: Provided is a system and method for implementing a constellation of satellites in inclined elliptical orbits that provides simplified satellite tracking for ground stations on the earth. The satellite orbits form a pair of repeating ground tracks around the earth. In each ground track the satellites operate only in active arcs well above or below the equator, emulating many of the characteristics of geostationary satellites. The parameters of the satellite orbits are adjusted so that the end points of the active arcs in the two ground tracks coincide; the turn-off point of an active arc in one ground track being the same as the turn-on point of an active arc in the other. For a ground station served by the satellites in these arcs, the active satellites appear to be moving slowly in one direction around a closed, teardrop-shaped path in the sky, at a generally high elevation angle.

    摘要翻译: 提供了一种用于实现倾斜椭圆轨道中的卫星星座的系统和方法,其为地球上的地面站提供简化的卫星跟踪。 卫星轨道在地球周围形成一对重复的地面轨道。 在每个地面轨道中,卫星只能在远低于或低于赤道的有效弧段内运行,模拟了地球静止卫星的许多特征。 调整卫星轨道的参数,使得两个地面轨道中的有效弧的终点重合; 一个地面轨道中的有效弧的关闭点与另一个地面轨道中的有效弧的开启点相同。 对于由这些电弧中的卫星服务的地面站,主动卫星似乎在一个方向上沿着一个方向缓慢移动,围绕天空中的一个封闭的泪珠状路径,大致高的仰角。