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公开(公告)号：US06563457B2
公开(公告)日：2003-05-13
申请号：US10001501
申请日：2001-11-14
IPC分类号： G01S124
CPC分类号： G01S19/46 , G01S5/0054 , G01S5/14 , G01S13/003 , G01S13/878 , G01S19/03 , G01S19/09 , G01S19/15 , G01S19/49
摘要： A method and system for determining a position of an object utilizes two-way ranging and polystatic techniques. A first communication transceiver at a first known location provides a bidirectional communication path between the first communication transceiver and the object wherein the first communication transceiver transmits a first ranging signal to the object and the object transmits a second ranging signal to the first communication transceiver in response to the first ranging signal. The first communication transceiver further provides a first unidirectional communication path between the first communication transceiver and the object wherein the first communication transceiver performs one of transmitting a third ranging signal to the object and receiving a fourth ranging signal from the object. A second communication transceiver at a second known location provides a second unidirectional communication path between the second communication transceiver and the object wherein the second communication transceiver performs one of transmitting a third ranging signal to the object and receiving a fourth ranging signal from the object. A signal processor determines a first path length corresponding to a first time length of the bidirectional communication path, a second path length corresponding to a second time length of the first and second unidirectional communication paths, and the position of the object based on the first and second known locations and the first and second path lengths.
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2.发明授权Method and system for determining a position of a transceiver unit utilizing two-way ranging in a polystatic satellite configuration 失效用于使用多声道卫星配置中的双向测距来确定收发器单元的位置的方法和系统公开(公告)号：US06377208B2
公开(公告)日：2002-04-23
申请号：US08803937
申请日：1997-02-21
IPC分类号： G01S504
CPC分类号： G01S19/46 , G01S5/0054 , G01S5/14 , G01S13/003 , G01S13/878 , G01S19/03 , G01S19/09 , G01S19/15 , G01S19/49
摘要： A method and system for determining a position of an object utilizes two-way ranging and polystatic techniques. A first communication transceiver at a first known location provides a bidirectional communication path between the first communication transceiver and the object wherein the first communication transceiver transmits a first ranging signal to the object and the object transmits a second ranging signal to the first communication transceiver in response to the first ranging signal. The first communication transceiver further provides a first unidirectional communication path between the first communication transceiver and the object wherein the first communication transceiver performs one of transmitting a third ranging signal to the object and receiving a fourth ranging signal from the object. A second communication transceiver at a second known location provides a second unidirectional communication path between the second communication transceiver and the object wherein the second communication transceiver performs one of transmitting a third ranging signal to the object and receiving a fourth ranging signal from the object. A signal processor determines a first path length corresponding to a first time length of the bidirectional communication path, a second path length corresponding to a second time length of the first and second unidirectional communication paths, and the position of the object based on the first and second known locations and the first and second path lengths.
摘要翻译： 用于确定物体位置的方法和系统利用双向测距和聚偏振技术。 在第一已知位置处的第一通信收发器提供第一通信收发器和对象之间的双向通信路径，其中第一通信收发器向对象发送第一测距信号，并且对象将响应中的第二测距信号发送到第一通信收发信机 到第一个测距信号。 第一通信收发器还提供第一通信收发器和对象之间的第一单向通信路径，其中第一通信收发器执行向对象发送第三测距信号并从对象接收第四测距信号。 在第二已知位置处的第二通信收发器在第二通信收发器和对象之间提供第二单向通信路径，其中第二通信收发器执行向对象发送第三测距信号并从对象接收第四测距信号之一。 信号处理器确定对应于双向通信路径的第一时间长度的第一路径长度，对应于第一和第二单向通信路径的第二时间长度的第二路径长度，以及基于第一和第二单向通信路径的对象的位置 第二已知位置和第一和第二路径长度。
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