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1.发明授权Control segment-based lever-arm correction via curve fitting for high accuracy navigation 有权通过曲线拟合控制段的杠杆臂校正，实现高精度导航公开(公告)号：US07221316B2
公开(公告)日：2007-05-22
申请号：US11247640
申请日：2005-10-10
IPC分类号： H04B7/185
CPC分类号： B64G1/1014 , B64G1/24
摘要： A method and apparatus for estimating a lever arm correction between the wide beam antenna and the spot beam antenna in a navigational satellite system is disclosed. A prescribed satellite maneuver is used to increase the accuracy of the predicted satellite attitude in determining the lever arm, and lever arm corrections are provided from a ground segment to navigation receivers using curve fit coefficients to permit long range estimates and to minimize data transmission requirements.
摘要翻译： 公开了一种用于估计所述宽波束天线和一个导航卫星系统中的点波束天线之间的杠杆臂的校正方法和设备。 将规定卫星机动用于提高在确定控制杆臂所预测的卫星姿态的精确度，并且从地面部分被提供给使用曲线拟合系数以允许长范围估计，并尽量减少数据传输的要求导航接收机杠杆臂校正。
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公开(公告)号：US07256734B2
公开(公告)日：2007-08-14
申请号：US11214357
申请日：2005-08-29
IPC分类号： H04B7/185
摘要： A method and apparatus for calibrating such a spot beam antenna by use of scanned spot beam signal characteristics measured by a plurality of ground based navigation receivers is disclosed.
摘要翻译： 公开了一种通过使用由多个基于地面的导航接收机测量的扫描点波束信号特性校准这种点波束天线的方法和装置。
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3.发明授权User segment-based lever arm correction via prescribed maneuver for high-accuracy navigation 失效基于用户段的杠杆臂校正通过规定的机动来进行高精度导航公开(公告)号：US07129889B1
公开(公告)日：2006-10-31
申请号：US11247493
申请日：2005-10-10
IPC分类号： H04B7/185
摘要： A method and apparatus for computing a lever arm correction between a wide beam coverage antenna and a steerable spot beam antenna of a navigational satellite is disclosed. A navigation receiver computes the lever arm correction using information from the navigational satellite that allows both the position of the navigational satellite and the navigational receiver to be determined using a known geometry of the steerable spot beam antenna and a prescribed satellite attitude maneuver profile.
摘要翻译： 公开了一种在导航卫星的宽波束覆盖天线和可转向点波束天线之间计算杠杆臂校正的方法和装置。 导航接收机使用来自导航卫星的信息来计算杠杆臂校正，其允许使用可转向点波束天线的已知几何形状和规定的卫星姿态机动轮廓来确定导航卫星和导航接收机的位置。
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公开(公告)号：US20100013703A1
公开(公告)日：2010-01-21
申请号：US11420427
申请日：2006-05-25
摘要： GPS gyro calibration methods and systems are described. In an embodiment, a ground station can receive antenna position data for a spot beam antenna from a global positioning system (GPS) platform where the antenna position data indicates a boresight direction of the spot beam antenna. GPS-enabled receiver(s) can receive scan signals transmitted via the spot beam antenna of the GPS platform, and the GPS-enabled receivers can determine signal power measurements for each of the scan signals. The ground station can receive the signal power measurements from the GPS-enabled receiver(s) and estimate a pointing error of the spot beam antenna based on the signal power measurements and the antenna position data received from the GPS platform. The ground station can then determine gyro calibration parameters from the estimated pointing error and communicate the gyro calibration parameters to the GPS platform to calibrate for gyro drift errors.
摘要翻译： GPS陀螺校准方法和系统进行了描述。 在一个实施例中，地面站可以从全球定位系统（GPS）平台接收点波束天线的天线位置数据，其中天线位置数据指示点波束天线的视轴方向。 支持GPS的接收机可以接收通过GPS平台的点波束天线发送的扫描信号，并且启用GPS的接收机可以确定每个扫描信号的信号功率测量。 地面站可以接收来自支持GPS的接收机的信号功率测量，并且基于从GPS平台接收的信号功率测量和天线位置数据来估计点波束天线的指向误差。 然后，地面站可以根据估计的指向误差确定陀螺仪校准参数，并将陀螺仪校准参数传送到GPS平台，以校准陀螺漂移误差。
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公开(公告)号：US20070273580A1
公开(公告)日：2007-11-29
申请号：US11420420
申请日：2006-05-25
IPC分类号： G01S5/14
CPC分类号： G01S19/02
摘要： Navigation signal group delay calibration methods and systems are described. In an embodiment, a code signal generated in a navigation system platform can be measured where the code signal includes timing delay(s). An additional code signal generated in the navigation system platform can be measured where the additional code signal is designated as a timing reference signal. A differential group delay between the code signal and the timing reference signal can the be mathematically estimated in the navigation system platform to correct for an inaccurate position estimation that would result from the timing delay(s).
摘要翻译： 描述了导航信号组延迟校准方法和系统。 在一个实施例中，可以在代码信号包括定时延迟的情况下测量在导航系统平台中产生的代码信号。 在附加码信号被指定为定时参考信号的情况下，可以测量在导航系统平台中产生的附加码信号。 代码信号和定时参考信号之间的差分组延迟可以在导航系统平台中进行数学估计，以校正由定时延迟引起的不准确的位置估计。
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6.发明授权Space-based lever arm correction in navigational systems employing spot beams 有权采用点光束的导航系统中的空基杠杆臂校正公开(公告)号：US07221317B2
公开(公告)日：2007-05-22
申请号：US11247641
申请日：2005-10-10
IPC分类号： H04B7/185
摘要： A method and apparatus for estimating a lever arm correction between the wide beam antenna and the spot beam antenna in a navigational satellite system is disclosed. A prescribed satellite maneuver is used to increase the accuracy of the predicted satellite attitude in determining the lever arm, and lever arm corrections are provided to navigation receivers using curve fit coefficients to permit long range estimates and to minimize data transmission requirements.
摘要翻译： 公开了一种用于在导航卫星系统中估计宽波束天线和点波束天线之间的杠杆臂校正的方法和装置。 使用规定的卫星机动来增加在确定杠杆臂时所预测的卫星姿态的准确度，并且使用曲线拟合系数将导轨接收器提供杠杆臂校正，以允许长距离估计并且最小化数据传输要求。
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7.发明授权User equipment navigation solution with position determination of a navigation signal reflector 有权用户设备导航解决方案，具有导航信号反射器的位置确定公开(公告)号：US07492314B2
公开(公告)日：2009-02-17
申请号：US11566144
申请日：2006-12-01
CPC分类号： G01S13/003 , G01S19/22
摘要： User equipment navigation solution with position determination of a navigation signal reflector methods and systems are described. In an embodiment, navigation signals transmitted from global positioning system (GPS) platform(s) can be received at a GPS-enabled receiver as direct navigation signals and reflected navigation signals. The direct navigation signals can then be isolated from the reflected navigation signals. Receiver range measurements can be determined from the direct navigation signals which are received via direct signal paths from the GPS platform(s), and a navigation solution of the GPS-enabled receiver can then be resolved from the receiver range measurements. Similarly, reflector range measurements can be determined from the reflected navigation signals which are received via reflected signal paths from a signal reflector, and a position of the signal reflector can then be resolved from the reflector range measurements at the GPS-enabled receiver.
摘要翻译： 描述了导航信号反射镜方法和系统位置确定的用户设备导航解决方案。 在一个实施例中，可以将GPS全球定位系统（GPS）平台发送的导航信号作为直接导航信号和反射的导航信号在启用GPS的接收机上接收。 然后可以将直接导航信号与反射的导航信号隔离。 可以从通过来自GPS平台的直接信号路径接收的直接导航信号来确定接收机范围测量，然后可以从接收机范围测量解析GPS使能的接收机的导航解决方案。 类似地，可以从通过来自信号反射器的反射信号路径接收到的反射导航信号确定反射器范围测量值，然后可以从启用GPS的接收机的反射器范围测量中解析出信号反射器的位置。
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8.发明申请USER EQUIPMENT NAVIGATION SOLUTION WITH POSITION DETERMINATION OF A NAVIGATION SIGNAL REFLECTOR 有权用户设备导航解决方案，具有位置确定导航信号反射器公开(公告)号：US20080129587A1
公开(公告)日：2008-06-05
申请号：US11566144
申请日：2006-12-01
CPC分类号： G01S13/003 , G01S19/22
摘要： User equipment navigation solution with position determination of a navigation signal reflector methods and systems are described. In an embodiment, navigation signals transmitted from global positioning system (GPS) platform(s) can be received at a GPS-enabled receiver as direct navigation signals and reflected navigation signals. The direct navigation signals can then be isolated from the reflected navigation signals. Receiver range measurements can be determined from the direct navigation signals which are received via direct signal paths from the GPS platform(s), and a navigation solution of the GPS-enabled receiver can then be resolved from the receiver range measurements. Similarly, reflector range measurements can be determined from the reflected navigation signals which are received via reflected signal paths from a signal reflector, and a position of the signal reflector can then be resolved from the reflector range measurements at the GPS-enabled receiver.
摘要翻译： 描述了导航信号反射镜方法和系统位置确定的用户设备导航解决方案。 在一个实施例中，可以将GPS全球定位系统（GPS）平台发送的导航信号作为直接导航信号和反射的导航信号在启用GPS的接收机上接收。 然后可以将直接导航信号与反射的导航信号隔离。 可以从通过来自GPS平台的直接信号路径接收的直接导航信号来确定接收机范围测量，然后可以从接收机范围测量解析GPS使能的接收机的导航解决方案。 类似地，可以从通过来自信号反射器的反射信号路径接收到的反射导航信号确定反射器范围测量值，然后可以从启用GPS的接收机的反射器范围测量中解析信号反射器的位置。
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公开(公告)号：US20080154502A1
公开(公告)日：2008-06-26
申请号：US11615259
申请日：2006-12-22
IPC分类号： G01C21/00
摘要： An improved approach to satellite-based navigation (e.g., GPS) is provided. In one embodiment, a method includes receiving a first set of tracking information. A nominal orbital path for the navigation satellite is determined using the first set of tracking information. Ephemeris data corresponding to the nominal orbital path is computed and uploaded to the navigation satellite. Long-term navigation information corresponding to the nominal orbital path is transmitted to a communication system for broadcast to a plurality of navigation devices. A second set of tracking information is received, an orbital path of the navigation satellite using the second set of tracking information is predicted, and a difference between the predicted orbital path and the nominal orbital path is determined. Commands configured to instruct the navigation satellite to adjust an actual orbital path of the navigation satellite to substantially conform to the nominal orbital path are uploaded to the navigation satellite.
摘要翻译： 提供了一种改进的卫星导航方法（如GPS）。 在一个实施例中，一种方法包括接收第一组跟踪信息。 使用第一组跟踪信息确定用于导航卫星的标称轨道路径。 计算对应于标称轨道路径的星历数据并将其上传到导航卫星。 对应于标称轨道路径的长期导航信息被发送到用于广播到多个导航设备的通信系统。 接收第二组跟踪信息，预测使用第二组跟踪信息的导航卫星的轨道，并且确定预测的轨道和标称轨道之间的差。 配置为指示导航卫星调整导航卫星的实际轨道路径以基本上符合标称轨道的命令被上载到导航卫星。
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10.发明申请MULTI-CONSTELLATION GLOBAL NAVIGATION SATELLITE SYSTEM AUGMENTATION AND ASSISTANCE 审中-公开多功能全球导航卫星系统的辅助和辅助公开(公告)号：US20110181465A1
公开(公告)日：2011-07-28
申请号：US12693883
申请日：2010-01-26
申请人： Rongsheng Li , Kamran Ghassemi , Jeff R. Bennett , Michael A. Rizzo, JR. , Jonathan A. Tekawy , Richard T. Cervisi
发明人： Rongsheng Li , Kamran Ghassemi , Jeff R. Bennett , Michael A. Rizzo, JR. , Jonathan A. Tekawy , Richard T. Cervisi
摘要： A multi-constellation GNSS augmentation and assistance system may include a plurality of reference stations. Each reference station may be adapted to receive navigation data from a plurality of different global navigation satellite systems and to monitor integrity and performance data for each different global navigation satellite system. An operation center may receive the integrity and performance data transmitted from each of the plurality of reference stations. A communication network may transmit a message from the operation center to navcom equipment of a user for augmentation and assistance of the navcom equipment.
摘要翻译： 多星座GNSS增强和辅助系统可以包括多个参考站。 每个参考站可以适于从多个不同的全球导航卫星系统接收导航数据，并监视每个不同的全球导航卫星系统的完整性和性能数据。 操作中心可以接收从多个参考站中的每一个发送的完整性和性能数据。 通信网络可以从用户的运营中心向用户的navcom设备发送消息，以增加和辅助navcom设备。
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