公开(公告)号：US09030357B2

公开(公告)日：2015-05-12

申请号：US13268540

申请日：2011-10-07

申请人： Paul Thevenon ,  Stéphane Corazza ,  Christophe Macabiau ,  Olivier Julien ,  Lionel Ries ,  Michel Bousquet

发明人： Paul Thevenon ,  Stéphane Corazza ,  Christophe Macabiau ,  Olivier Julien ,  Lionel Ries ,  Michel Bousquet

IPC分类号： G01S5/02 ,  G01S1/32 ,  G01S19/10

CPC分类号： G01S5/0278 ,  G01S1/32 ,  G01S5/0226 ,  G01S19/10

摘要： A method for identifying transmitters by a terminal in a single-frequency network comprising a plurality of transmitters. The transmitters are synchronized and transmit with an artificial delay τi, specific to each transmitter. The method comprises at least one step of acquiring the approximate position of the terminal {circumflex over (p)}, the position pi of a list of transmitters {Tx} in the vicinity of the terminal and the delays τi associated with them, a step of measuring pseudo-distances ρi between the transmitters and the terminal and a step of associating the measurements ρi with the transmitters of known positions pi by minimizing a cost function, said cost function ν(ρi,{circumflex over (p)},σ) corresponding to the norm of the error between the measurements ρi and a model of measurements of the pseudo-distances applied to a permutation of the position of the transmitters σ.

摘要翻译： 一种用于由包括多个发射机的单频网络中的终端识别发射机的方法。 发射机同步并以每个发射机特有的人为延迟τi传输。 该方法包括至少一个步骤：获取终端的近似位置（回旋（p）}），终端附近的发射机列表{Tx}的位置pi和与其相关联的延迟τi，步骤 测量发射机和终端之间的伪距离和i的步骤以及通过最小化成本函数将测量值与已知位置pi的发射机相关联的步骤，所述成本函数＆ngr;（＆rgr; i，{circumflex over （p）}，＆sgr;），其对应于测量值与测量值之间的误差范围，以及应用于发射器和位置的位置的置换的伪距离的测量模型。

公开(公告)号：US07916072B2

公开(公告)日：2011-03-29

申请号：US12093109

申请日：2006-11-07

申请人： Stéphane Corazza ,  Michel Monnerat

发明人： Stéphane Corazza ,  Michel Monnerat

IPC分类号： G01S19/06 ,  G01S19/25

CPC分类号： G01S19/05 ,  G01S19/258 ,  G01S19/27

摘要： Satellites of a satellite positioning system broadcast within the navigation signals ephemeris data having a certain period of validity. At a mobile station, ephemeris data are required for position-fixing. In assisted satellite positioning systems, acquisition of navigation signals emitted by the satellites is facilitated as assistance data are provided to the mobile station. At a server station, a request for assistance data issued by the mobile station is received, and the server station transmits ephemeris data as part of the assistance data to the mobile station in response to its request. Upon receiving the request for assistance data issued by the mobile station, the server station decides whether the mobile station could achieve a specified position fix accuracy if the mobile station was provided with the broadcast ephemeris data. In the positive, the server station transmits the broadcast ephemeris data to the mobile station. In the negative, the server station transmits, instead of broadcast ephemeris data, long-term ephemeris data to the mobile station as part of the assistance data requested. The long-term ephemeris data are derived from satellite orbit predictions and have a period of validity substantially increased with respect to the ephemeris data broadcast by the satellites.

摘要翻译： 卫星定位系统的卫星在导航信号中广播星历数据具有一定的有效期。 在移动台，固定位置需要星历数据。 在辅助卫星定位系统中，随着向移动台提供辅助数据，便于获得由卫星发射的导航信号。 在服务器站，接收到由移动站发出的辅助数据请求，并且服务器台响应于其请求，将作为辅助数据的一部分的星历数据发送到移动台。 在接收到由移动台发出的辅助数据请求后，如果移动台被提供了广播星历数据，则服务器站决定移动台是否可以获得指定的定位精度。 在积极的情况下，服务器站将广播星历数据发送到移动台。 否则，作为所请求的辅助数据的一部分，服务器站将移动台的长期星历数据而不是广播星历数据发送。 长期星历数据来自卫星轨道预测，并且相对于由卫星广播的星历数据具有显着增加的有效期。