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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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公开(公告)号：US06496146B1
公开(公告)日：2002-12-17
申请号：US09376942
申请日：1999-08-18
IPC分类号： H01Q124
CPC分类号： H01Q1/38 , H01Q1/242 , H01Q1/246 , H01Q1/3275 , H01Q1/42 , H01Q9/0407 , H01Q21/065 , H01Q23/00
摘要： A modular mobile terminal for a satellite system is disclosed in which the satellite system has a ground station and a network such as a telephone network coupled to the ground station. Each of the mobile terminals has a radome layer and a support layer having a plurality of circuit traces formed thereon. An element module is coupled between the support layer and the radome layer. Each element module comprises a housing and a radiating patch having a feed therethrough. A dielectric layer is coupled adjacent to the radiating patch. A ground plane is disposed adjacent to the dielectric layer on the opposite side of the dielectric layer as the radiating patch. A plurality of circuit chips is coupled to the ground plane. The support layer of the array has a plurality of circuit traces formed thereon. A plurality of interconnections between the circuit chips and the plurality of traces connect the traces and the circuit chips.
摘要翻译： 公开了一种用于卫星系统的模块化移动终端，其中卫星系统具有地面站和诸如耦合到地面站的电话网络的网络。 每个移动终端具有天线罩层和在其上形成有多个电路迹线的支撑层。 元件模块耦合在支撑层和天线罩层之间。 每个元件模块包括外壳和具有穿过其中的馈电的辐射贴片。 电介质层与辐射贴片相邻耦合。 接地平面设置在与作为辐射贴片的电介质层相反侧的电介质层附近。 多个电路芯片耦合到接地层。 阵列的支撑层具有形成在其上的多个电路迹线。 电路芯片和多个迹线之间的多个互连连接迹线和电路芯片。
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23.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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24.发明授权公开(公告)号：US06313790B2
公开(公告)日：2001-11-06
申请号：US09780103
申请日：2001-02-09
IPC分类号： H04B7185
摘要： A method and system for determining a position of an orbiting transceiver in a communications network includes at least a first and second transceiver at a first and second known location, respectively, on Earth. The first and second transceivers are adapted to transmit and receive communications signals to and from the orbiting transceiver. A processor coupled to one of the first and second transceivers determines a first and second range measurement between each of the first and second transceivers and the orbiting transceiver, respectively, as well as corresponding first and second range rates representative of a time rate of change of the first and second range measurements. The processor then determines a circle of intersection representative of the set of possible positions for the orbiting transceiver based on the first range measurement and the first range rate wherein the circle of intersection includes a specific orientation in space, a specific radius and a center in a specific, three-dimensional position relative to the known position of the first transceiver. An angular position of the orbiting transceiver is then determined along the circle of intersection based on the known position of the second transceiver and the second range measurement. Finally, the position of the orbiting transceiver is determined based on the circle of intersection and the angular position.
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公开(公告)号：US06791495B2
公开(公告)日：2004-09-14
申请号：US10272633
申请日：2002-10-17
IPC分类号： H01Q124
CPC分类号： H01Q1/38 , H01Q1/242 , H01Q1/246 , H01Q1/3275 , H01Q1/42 , H01Q9/0407 , H01Q21/065 , H01Q23/00
摘要： A modular mobile terminal for a satellite system is disclosed in which the satellite system has a ground station and a network such as a telephone network coupled to the ground station. Each of the mobile terminals has a radome layer and a support layer having a plurality of circuit traces formed thereon. An element module is coupled between the support layer and the radome layer. Each element module comprises a housing and a radiating patch having a feed therethrough. A dielectric layer is coupled adjacent to the radiating patch. A ground plane is disposed adjacent to the dielectric layer on the opposite side of the dielectric layer as the radiating patch. A plurality of circuit chips is coupled to the ground plane. The support layer of the array has a plurality of circuit traces formed thereon. A plurality of interconnections between the circuit chips and the plurality of traces connect the traces and the circuit chips.
摘要翻译： 公开了一种用于卫星系统的模块化移动终端，其中卫星系统具有地面站和诸如耦合到地面站的电话网络的网络。 每个移动终端具有天线罩层和在其上形成有多个电路迹线的支撑层。 元件模块耦合在支撑层和天线罩层之间。 每个元件模块包括壳体和具有穿过其中的馈电的辐射贴片。 电介质层与辐射贴片相邻耦合。 接地平面设置在与作为辐射贴片的电介质层相反侧的电介质层附近。 多个电路芯片耦合到接地层。 阵列的支撑层具有形成在其上的多个电路迹线。 电路芯片和多个迹线之间的多个互连连接迹线和电路芯片。
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公开(公告)号：US06766987B2
公开(公告)日：2004-07-27
申请号：US10230424
申请日：2002-08-28
申请人： Frank Taormina , Donald C. D. Chang , Kar W. Yung , David C. Cheng , William W. Mayfield , John Novak, III , Arthur W. Wang
发明人： Frank Taormina , Donald C. D. Chang , Kar W. Yung , David C. Cheng , William W. Mayfield , John Novak, III , Arthur W. Wang
IPC分类号： B46G100
CPC分类号： H04B7/195
摘要： A satellite communication system has a first deployment of a plurality of satellites deployed in a medium earth orbit and two later deployments of a plurality of satellites deployed in the medium earth orbit. The first deployment is spaced so that the second deployment may be easily deployed and interleaved into the first deployment. A ground terminal is used for communicating with the satellites in the first and second deployments.
摘要翻译： 卫星通信系统首先部署在中等地球轨道上部署的多个卫星，以及部署在中等地球轨道上的多个卫星的两个后续部署。 第一部署是间隔开的，使得第二部署可以容易地部署和交错到第一部署中。 接地终端用于与第一和第二部署中的卫星进行通信。
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27.发明授权Signal processing circuit for communicating with a modular mobile satellite terminal and method therefor 有权用于与模块化移动卫星终端通信的信号处理电路及其方法公开(公告)号：US06667715B1
公开(公告)日：2003-12-23
申请号：US09376941
申请日：1999-08-18
IPC分类号： H01Q322
CPC分类号： H01Q21/062 , H01Q1/288 , H04B7/18571
摘要： A signal processing circuit for satellite communications signal includes a first one dimensional digital beam forming circuit for forming a beam signal in a first direction and a second one dimensional digital beam forming circuit for forming a beam in a second direction. A direction filtering circuit is coupled between the first one dimensional digital beam forming circuit and the second one dimensional digital beam forming circuit. The filtering circuit determining a communications signal direction of the satellite communications signal and tunes the filter to reduce a filter bandwidth and a frequency range of said beam signal prior to processing through the second one dimensional digital beam forming circuit.
摘要翻译： 用于卫星通信信号的信号处理电路包括用于在第一方向上形成波束信号的第一一维数字波束形成电路和用于在第二方向上形成波束的第二一维数字波束形成电路。 方向滤波电路耦合在第一一维数字波束形成电路和第二一维数字波束形成电路之间。 所述滤波电路确定所述卫星通信信号的通信信号方向，并调谐所述滤波器以在通过所述第二一维数字波束形成电路进行处理之前降低所述波束信号的滤波器带宽和频率范围。
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28.发明授权公开(公告)号：US06501941B1
公开(公告)日：2002-12-31
申请号：US09432440
申请日：1999-11-02
申请人： Donald C. D. Chang , Kar W. Yung , David C. Cheng , Urban A. Von Der Embse , John I. Novak, III , Frank A. Taormina , Ming U. Chang
发明人： Donald C. D. Chang , Kar W. Yung , David C. Cheng , Urban A. Von Der Embse , John I. Novak, III , Frank A. Taormina , Ming U. Chang
IPC分类号： H04B7185
CPC分类号： H04B7/18519 , B64G1/1007 , B64G1/242
摘要： Methods for increasing the efficiency of satellite constellation operations are disclosed. The steps of the present invention comprise calculating the maximum number of communications signals that each satellite in the satellite constellation can generate, determining an operational constraint on each satellite, the operational constraint limiting the number of communications signals that each satellite can radiate substantially simultaneously, determining an operational space for each satellite wherein the operational space is defined using the operational constraint and the calculated number of signals, and using the operational space for each satellite in the constellation to determine the operational point for the constellation.
摘要翻译： 公开了提高卫星星座操作效率的方法。 本发明的步骤包括计算卫星星座中每个卫星可以产生的通信信号的最大数量，确定每个卫星的操作约束，限制每个卫星可基本上同时辐射的通信信号的数量的操作约束，确定 每个卫星的操作空间，其中使用操作约束和所计算的信号数定义操作空间，并且使用星座中的每个卫星的操作空间来确定星座的操作点。
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29.发明授权Method and system for determining a position of a transceiver unit utilizing two-way ranging in a polystatic satellite configuration including a ground radar 有权用于在包括地面雷达的多立体卫星配置中利用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：US06340947B1
公开(公告)日：2002-01-22
申请号：US09746997
申请日：2000-12-22
IPC分类号： G01S504
CPC分类号： G01S5/0054 , G01S5/14 , G01S13/003 , G01S13/74 , G01S13/878 , G01S19/03 , G01S19/09 , G01S19/15 , G01S19/36 , G01S19/49
摘要： A method and system for determining the position of an object, such as an aircraft, utilizes two-way ranging with a polystatic satellite configuration and ground radar. A ground transceiver at a first known location provides a bidirectional communication path between the ground transceiver and the object wherein the ground transceiver transmits a first ranging signal to the object and the object transmits a second ranging signal to the ground transceiver in response to the first ranging signal. A first communication transceiver at a second known location 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 third ranging signal from the object in response to the first ranging signal. A second communication transceiver at a third known location for providing a second unidirectional communication path between the second communication transceiver and the object wherein the second communication transceiver performs one of transmitting a fourth ranging signal to the object and receiving a fourth ranging signal from the object in response to the first ranging signal. A signal processor determines a first, second and third path length, and determines the position of the object based on the first, second and third known locations and the first, second and third path lengths.
摘要翻译： 用于确定诸如飞行器的物体的位置的方法和系统利用多声道卫星配置和地面雷达的双向测距。 在第一已知位置处的接地收发器提供接地收发器和对象之间的双向通信路径，其中接地收发器向对象发送第一测距信号，并且对象将响应于第一测距向对接收发信机发送第二测距信号 信号。 在第二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响应中接收来自对象的第三测距信号 到第一个测距信号。 在第三已知位置处的第二通信收发器，用于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四测距信号并从对象接收第四测距信号 响应第一个测距信号。 信号处理器确定第一，第二和第三路径长度，并且基于第一，第二和第三已知位置以及第一，第二和第三路径长度来确定对象的位置。
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30.发明授权Method and system for determining a position of a communication satellite utilizing two-way ranging 有权用于利用双向测距来确定通信卫星的位置的方法和系统公开(公告)号：US06229477B1
公开(公告)日：2001-05-08
申请号：US09174182
申请日：1998-10-16
IPC分类号： H04B7185
摘要： A method and system for determining a position of an orbiting transceiver in a communications network includes at least a first and second transceiver at a first and second known location, respectively, on Earth. The first and second transceivers are adapted to transmit and receive communications signals to and from the orbiting transceiver. A processor coupled to one of the first and second transceivers determines a first and second range measurement between each of the first and second transceivers and the orbiting transceiver, respectively, as well as corresponding first and second range rates representative of a time rate of change of the first and second range measurements. The processor then determines a circle of intersection representative of the set of possible positions for the orbiting transceiver based on the first range measurement and the first range rate wherein the circle of intersection includes a specific orientation in space, a specific radius and a center in a specific, three-dimensional position relative to the known position of the first transceiver. An angular position of the orbiting transceiver is then determined along the circle of intersection based on the known position of the second transceiver and the second range measurement. Finally, the position of the orbiting transceiver is determined based on the circle of intersection and the angular position.
摘要翻译： 用于确定通信网络中的轨道收发器的位置的方法和系统包括分别位于地球上的第一和第二已知位置处的至少第一和第二收发器。 第一和第二收发器适于向和/或绕轨道收发信机发送和接收通信信号。 耦合到第一和第二收发器中的一个的处理器分别确定第一和第二收发器和绕动收发器中的每一个之间的第一和第二范围测量，以及相应的第一和第二范围速率，其代表时间变化率 第一和第二范围测量。 然后，处理器基于第一范围测量和第一范围速率来确定代表轨道收发信机的一组可能位置的交集圈，其中交集圈包括空间中的特定取向，特定半径和 相对于第一收发器的已知位置的特定的三维位置。 然后，基于第二收发器的已知位置和第二范围测量，沿着交叉圆圈确定轨道收发器的角度位置。 最后，轨道收发器的位置基于交点和角位置确定。
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