Non-geostationary satellite communication system and satellite, station and terminal included therein
    1.
    发明申请
    Non-geostationary satellite communication system and satellite, station and terminal included therein 审中-公开
    非对地静止卫星通信系统及卫星,车站和终端

    公开(公告)号:US20030073404A1

    公开(公告)日:2003-04-17

    申请号:US10290338

    申请日:2002-11-08

    申请人: ALCATEL ESPACE

    IPC分类号: H04B007/185

    摘要: A communication system includes a set of non-geostationary satellites setting up communication links between ground stations and terminals, the links from a station terminating at associated terminals in a limited geographical area including the station. A communication link between a particular station and the associated terminals is set up by a satellite of the set of satellites. The satellite is commanded to set up for this purpose a steerable transmit beam and a steerable receive beam pointing at the limited area including the particular station and supporting the communication link.

    摘要翻译: 通信系统包括一组非地球静止卫星,其在地面站和终端之间建立通信链路,来自在包括该站的有限地理区域中的相关终端处终止的站的链路。 特定站与相关终端之间的通信链路由该组卫星的卫星建立。 该卫星被命令为此目的建立一个可操纵的发射波束和指向受限区域的可控的接收波束,包括特定的台站并支持通信链路。

    System for observation of geostationary satellites, use of a system of
this kind and corresponding observation methods
    4.
    发明授权
    System for observation of geostationary satellites, use of a system of this kind and corresponding observation methods 失效
    观测对地静止卫星系统,使用这种系统和相应的观测方法

    公开(公告)号:US5927652A

    公开(公告)日:1999-07-27

    申请号:US686403

    申请日:1996-07-25

    申请人: Erick Lansard

    发明人: Erick Lansard

    摘要: The invention concerns, in particular, a system of observation of geostationary satellites (10.sub.1 -10.sub.n). In accordance with the invention, this system comprises at least one observation satellite (15) in an observation orbit (16, 17) near the geostationary orbit (11), this observation satellite (15) having an apparatus for observation of the geostationary satellites (10.sub.1 -10.sub.n) and an apparatus for transmission of the information obtained from the observation apparatus (20, 21, 22) to a receiver. The invention applies, in particular, to the discrimination of communication, meteorological, early warning and electromagnetic monitoring satellites.

    摘要翻译: 本发明特别涉及对地静止卫星观测系统(101-10n)。 根据本发明,该系统包括在地球静止轨道(11)附近的观察轨道(16,17)中的至少一个观测卫星(15),该观测卫星(15)具有用于观测对地静止卫星的装置 101-10n)和用于将从观察装置(20,21,22)获得的信息发送到接收机的装置。 本发明特别适用于通信,气象,预警和电磁监测卫星的歧视。

    Power distributor system and power distributor for microwave signals
having recurring hierarchical structure of distributor elements and
coupler elements
    5.
    发明授权
    Power distributor system and power distributor for microwave signals having recurring hierarchical structure of distributor elements and coupler elements 失效
    用于具有分布器元件和耦合器元件的重复分层结构的微波信号的分配器系统和功率分配器

    公开(公告)号:US5673010A

    公开(公告)日:1997-09-30

    申请号:US358361

    申请日:1994-12-19

    IPC分类号: H01P5/16 H01P5/12

    CPC分类号: H01P5/16

    摘要: A power distributor for microwave signals has n inputs and n outputs, n/2 coupler elements, four power distributor elements each having n/2 inputs and n/2 outputs. The inputs of the first and third distributor elements correspond to respective inputs of the distributor and the outputs of the second and fourth distributor elements correspond to respective outputs of the distributor. The outputs of the first distributor element are connected to respective first inputs of the couplers and the outputs of the third distributor element are connected to respective second inputs of the couplers. The inputs of the second distributor element are connected to respective first outputs of the couplers and the inputs of the fourth distributor element are connected to respective second outputs of the couplers.

    摘要翻译: 用于微波信号的功率分配器具有n个输入和n个输出,n / 2个耦合器元件,每个具有n / 2输入和n / 2个输出的四个功率分配器元件。 第一和第三分配器元件的输入对应于分配器的相应输入,第二和第四分配器元件的输出对应于分配器的相应输出。 第一分配器元件的输出连接到耦合器的相应的第一输入端,并且第三分配器元件的输出端连接到耦合器的相应的第二输入端。 第二分配器元件的输入连接到耦合器的相应的第一输出端,​​并且第四分配器元件的输入端连接到耦合器的相应的第二输出端。

    Memory relay system for observation satellites
    6.
    发明授权
    Memory relay system for observation satellites 失效
    用于观测卫星的内存中继系统

    公开(公告)号:US5561837A

    公开(公告)日:1996-10-01

    申请号:US252314

    申请日:1994-06-01

    IPC分类号: H04B7/185

    CPC分类号: H04B7/18576

    摘要: The invention proposes a memory relay system for observation spacecraft, for example observation satellites or interplanetary probes. The object of the invention is to alleviate the absence or possible failure of onboard memory of these craft. The system of the invention provides a substitute solution which returns full functionality to an observation system capable of acquiring and transmitting observation data but not of storing it. In accordance with the invention, an artificial satellite or craft comprising at least one transponder and at least one writable memory is disposed near an observation satellite or a probe. The transponder is capable of receiving signals transmitted by the observation satellite or probe and then transmitting the signals to the Earth or to another destination. The memory of this artificial satellite or craft stores the information received until it is retrieved and retransmitted to the receiving station, a station on the ground, for example.

    摘要翻译: 本发明提出了一种用于观测航天器的存储继电器系统,例如观测卫星或星际探测器。 本发明的目的是减轻这些飞行器的机载存储器的不存在或可能的故障。 本发明的系统提供了一种替代解决方案,其将全部功能返回给能够获取和传送观测数据但不存储观测数据的观测系统。 根据本发明,包括至少一个应答器和至少一个可写入存储器的人造卫星或工艺设置在观测卫星或探测器附近。 应答器能够接收由观测卫星或探测器发射的信号,然后将信号发射到地球或其他目的地。 这种人造卫星或手工的存储器存储所接收的信息,直到它被检索并重传到接收站,例如地面上的站。

    Method of estimating the error in the calculation of the position of a
mobile by a GPS receiver, and GPS receiver for implementing this method
    7.
    发明授权
    Method of estimating the error in the calculation of the position of a mobile by a GPS receiver, and GPS receiver for implementing this method 失效
    GPS接收机计算移动台位置误差的估计方法,实现该方法的GPS接收机

    公开(公告)号:US5373298A

    公开(公告)日:1994-12-13

    申请号:US131733

    申请日:1993-10-05

    申请人: Philippe Karouby

    发明人: Philippe Karouby

    CPC分类号: G01S19/39 G01S19/40 G01S19/42

    摘要: In a method of calculation by a GPS receiver of the position of a mobile in space and time relative to a predetermined frame of reference, the position is calculated from data supplied by at least four GPS satellites selected by the GPS receiver to form a calculation constellation. The method includes the step of estimating the error in the position calculation. This error is estimated by the GPS receiver for each calculated position. The estimated error therefore varies with the position of the mobile.

    摘要翻译: 在GPS接收机计算空间和时间相对于预定参考系的位置的方法中,根据由GPS接收机选择的至少四个GPS卫星提供的数据来计算位置,以形成计算星座 。 该方法包括估计位置计算中的误差的步骤。 GPS接收机对每个计算出的位置估计该误差。 所估计的误差因移动台的位置而异。

    Reconfigurable transmission antenna
    8.
    发明授权
    Reconfigurable transmission antenna 失效
    可重配置的发射天线

    公开(公告)号:US5289193A

    公开(公告)日:1994-02-22

    申请号:US61425

    申请日:1993-02-04

    IPC分类号: H01Q25/00 H01Q3/02 H01Q3/22

    CPC分类号: H01Q25/007

    摘要: The invention relates to a reconfigurable transmission antenna comprising a reflector (10) for energy focussing, and an array (11) of source elements situated in the focal region of the reflector, so that the electromagnetic field is synthesized in said region, wherein a spot (SPi) is the result of radiation from a number of sources that is fixed and identical for all the spots; any one source participating at any one time in radiating one spot at the most, and high-level switching being used to reconfigure the spots by selecting the sources that participate in a given spot. Application to the space telecommunications field in particular.

    摘要翻译: 本发明涉及一种包括用于能量聚焦的反射器(10)和位于反射器聚焦区域中的源元件阵列(11)的可重新配置的发射天线,从而在所述区域中合成电磁场,其中点 (SPi)是来自多个源的辐射的结果,其固定并且对于所有斑点是相同的; 任何一个来源都可以在任何一个时间最多地辐射一个地点,并且通过选择参与给定地点的来源,用于重新配置点的高级别切换。 尤其适用于太空电讯领域。

    Spacecraft payload architecture
    9.
    发明授权
    Spacecraft payload architecture 失效
    SPACECRAFT PAYLOAD ARCHITECTURE

    公开(公告)号:US5248980A

    公开(公告)日:1993-09-28

    申请号:US863075

    申请日:1992-04-03

    申请人: Gerard Raguenet

    发明人: Gerard Raguenet

    CPC分类号: H04B7/2041

    摘要: Spacecraft payload architecture which includes an array (10) of radiating elements preceded by an amplification stage (17) and a focusing optical system (11), characterized in that the architecture is adapted to a telecommunication mission by taking into account the overall requirements of the system, namely the radiation performance required for the mission, efficient rating of the amplification stage and attractive overall balances.

    摘要翻译: 航天器有效载荷架构包括辐射元件的阵列(10),其前面放大级(17)和聚焦光学系统(11),其特征在于,该架构适用于电信任务,考虑到 系统,即任务所需的辐射性能,放大级的有效等级和有吸引力的总体平衡。