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1.发明授权Distributed radio frequency ranging signal receiver for navigation or position determination 有权分布式射频测距信号接收机，用于导航或位置确定公开(公告)号：US07532160B1
公开(公告)日：2009-05-12
申请号：US10909243
申请日：2004-07-30
摘要： In a local positioning system, a receiver is adapted for receiving signals from a land-based transmitter. The receiver includes an analog decorrelator for decorrelating the transmitted spread spectrum signals. A down converter connected with an antenna may be spaced away from other portions of the receiver. The down converter down converts received ranging signals and provides them to the remotely spaced receiver portions. A signal line connecting the down converter to the receiver may be operable to transmit any two or more of a reference signal provided to the down converter, the down converted intermediate frequency signals provided to the receiver, and power provided to the down converter. The receiver may be positioned adjacent to or as part of a land-based transmitter. By determining positions of two or more antennas, the location of the associated transmitter is determined.
摘要翻译： 在本地定位系统中，接收机适于接收来自陆基发射机的信号。 该接收机包括一个模拟解相关器，用于对发射的扩频信号进行去相关。 与天线连接的降压转换器可以与接收器的其它部分间隔开。 下变频器降低转换接收的测距信号并将其提供给远程间隔的接收机部分。 将下变频器连接到接收器的信号线可以用于发送提供给下变频器的参考信号，提供给接收机的下变频中频信号以及提供给下变频器的功率中的任何两个或多个。 接收器可以定位成与陆基发射器相邻或作为陆基发射器的一部分。 通过确定两个或更多个天线的位置，确定相关联的发射机的位置。
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2.发明授权Multiple frequency antenna structures and methods for receiving navigation or ranging signals 有权用于接收导航或测距信号的多频天线结构和方法公开(公告)号：US07315278B1
公开(公告)日：2008-01-01
申请号：US10909140
申请日：2004-07-30
摘要： In a local positioning system, augmentation of the land-based system is provided by receiving signals from a GNSS. The signals from the land-based positioning system have a code phase accuracy better than one wavelength of a carrier of the signals from the GNSS. Different decorrelation may be used for signals from a satellite than from a land-based transmitter, such as using a digital decorrelator for signals from the satellite and an analog decorrelator for signals from a land-based transmitter. The receivers may include both a GNSS antenna and a local antenna. The phase centers of the two antennas are within one wavelength of the GNSS signals from each other. The local antenna is sized for operation in the X or ISM-bands of frequencies. The GNSS antenna is a patch antenna where the microwave antenna extends away from the patch antenna in at least one dimension.
摘要翻译： 在本地定位系统中，通过从GNSS接收信号来提供陆基系统的增强。 来自陆上定位系统的信号的编码相位精度优于来自GNSS的信号的载波的一个波长。 不同的去相关可以用于来自卫星的信号，而不是来自基于陆地的发射机，例如对于来自卫星的信号使用数字解相关器和用于来自陆地发射机的信号的模拟去相关器。 接收机可以包括GNSS天线和本地天线。 两个天线的相位中心在GNSS信号的一个波长内。 本地天线的大小适合在X或ISM频段中运行。 GNSS天线是贴片天线，其中微波天线在至少一个维度上远离贴片天线延伸。
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公开(公告)号：US07027918B2
公开(公告)日：2006-04-11
申请号：US10408496
申请日：2003-04-07
CPC分类号： G01S19/54 , G01C21/165 , G01S19/50
摘要： A satellite navigation system using multiple antennas for providing the position of multiple fiduciary points on an object even when fewer than four satellites are visible to some or all the antennas. Satellite signals from the multiple antennas are fed into at least one receiver. The receiver or receivers utilize constraint information, which is independent of the satellite signals. These external constraints are used to augment the signals received from the satellites, to obtain the position solution for each antenna. In a preferred embodiment, a common reference clock is used to provide an external constraint. Examples of other external constraints that can be used in the current invention are distance between the antennas, inertial measurement of attitude, rotational or linear position sensors, etc.
摘要翻译： 一种使用多个天线的卫星导航系统，用于在物体上提供多个受信点的位置，即使对于一些或所有天线可见少于四颗卫星。 来自多个天线的卫星信号被馈送到至少一个接收机。 接收机或接收机利用独立于卫星信号的约束信息。 这些外部约束用于增加从卫星接收的信号，以获得每个天线的位置解。 在优选实施例中，使用公共参考时钟来提供外部约束。 可以在本发明中使用的其他外部约束的示例是天线之间的距离，姿态的惯性测量，旋转或线性位置传感器等。
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4.发明授权Multi-frequency pseudolites for carrier-based differential-position determination 有权用于基于载波的差分位置确定的多频伪卫星公开(公告)号：US07023381B2
公开(公告)日：2006-04-04
申请号：US10391161
申请日：2003-03-17
申请人： Kurt R. Zimmerman , Clark E. Cohen , David G. Lawrence , Walter C. Melton , Henry Stewart Cobb , Paul Yalden Montgomery
发明人： Kurt R. Zimmerman , Clark E. Cohen , David G. Lawrence , Walter C. Melton , Henry Stewart Cobb , Paul Yalden Montgomery
CPC分类号： G01S19/11 , G01S5/009 , G01S19/04 , G01S19/07 , G01S19/32 , G01S19/37 , G01S19/41 , G01S19/44
摘要： Apparatus and methods for resolving integer ambiguities in position determination. An embodiment of the invention includes a reference system, augmented with multi-frequency pseudolites using a carrier phase differential GPS implementation, and a mobile system. In one embodiment, the components of the reference system includes one or more multi-frequency pseudolites, one or more multi-frequency reference receivers, a data link standing alone or built into the pseudolites, and the associated antennae for each of these elements. The components of the reference system may be stationary. The mobile system may include a multi-frequency receiver and its associated antennae. Because the mobile systems may passively receive information, an unlimited number of mobile systems may be included in any given embodiment of the invention. A multi-frequency pseudolite uses a single frequency source to synthesize all of the multiple carrier frequencies and all of the multiple base band signals modulated onto carrier frequencies for transmission.
摘要翻译： 用于解决位置确定中的整数模糊度的装置和方法。 本发明的实施例包括使用载波相位差GPS执行的多频伪卫星增强的参考系，以及移动系统。 在一个实施例中，参考系统的组件包括一个或多个多频率伪卫星，一个或多个多频率参考接收机，独立地或内置于伪卫星中的数据链路，以及用于这些元件中的每一个的相关天线。 参考系统的组件可以是静止的。 移动系统可以包括多频接收器及其相关联的天线。 由于移动系统可以被动地接收信息，所以在本发明的任何给定实施例中可以包括无限数量的移动系统。 多频伪卫星使用单个频率源来合成所有的多载波频率以及调制到载波频率上的所有多个基带信号进行传输。
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公开(公告)号：US06880643B1
公开(公告)日：2005-04-19
申请号：US10359409
申请日：2003-02-06
申请人： Kurt R. Zimmerman , Avi Gross , Michael O'Connor , Glen Sapilewski , David G. Lawrence , H. Stewart Cobb , Lars Leckie , Paul Y. Montgomery
发明人： Kurt R. Zimmerman , Avi Gross , Michael O'Connor , Glen Sapilewski , David G. Lawrence , H. Stewart Cobb , Lars Leckie , Paul Y. Montgomery
CPC分类号： E02F3/84
摘要： A land-leveling system that uses the Global Positioning System is provided. The system provides for an earth-moving machine mounted with an antenna that receives GPS signals from the satellites of the Global Positioning System. The earth-moving machine comprises a vehicle attached to a work implement, which is also connected to an actuator. A decision unit mounted on the vehicle sends control signals to the actuator, which controls the elevation of the work implement. These control signals are generated using the signals received from the antenna and the desired grade map. This system has an increased coverage area, more accuracy and round-the-clock operability. The system could be used to carry out all the land-leveling operations viz. surveying, leveling and verifying.
摘要翻译： 提供了使用全球定位系统的地面平整系统。 该系统提供一种安装有天线的移动机器，该天线从全球定位系统的卫星接收GPS信号。 移土机包括附接到工作工具的车辆，该工具还连接到致动器。 安装在车辆上的决定单元向执行器发送控制信号，该控制信号控制作业工具的高度。 这些控制信号使用从天线接收的信号和期望的等级图来产生。 该系统具有增加的覆盖面积，更高的准确度和全天候的可操作性。 该系统可用于执行所有的土地平整操作。 测量，调平和验证。
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6.发明授权公开(公告)号：US06804587B1
公开(公告)日：2004-10-12
申请号：US09993323
申请日：2001-11-15
申请人： Michael L. O Connor , Thomas Bell , Michael L. Eglington , Lars Leckie , Gregory M. Gutt , Kurt R. Zimmerman
发明人： Michael L. O Connor , Thomas Bell , Michael L. Eglington , Lars Leckie , Gregory M. Gutt , Kurt R. Zimmerman
IPC分类号： G06F1900
CPC分类号： E02F9/205 , E02F9/2045 , G05D1/0278 , G05D2201/0201
摘要： A system including a mobile vehicle, an implement, a position sensor, a controller, a user interface (a touch-screen monitor, video monitor or keypad, as examples), a software program to compute a calibration trajectory, and a steering system for steering the vehicle to the desired or adjusted trajectory based on the error between the vehicle's desired and actual positions. In one embodiment, non-co-located sensing and control combine with a calibration procedure to help eliminate model error. Another embodiment uses co-located sensing (but not control) to calibrate the model.
摘要翻译： 一种包括移动车辆，工具，位置传感器，控制器，用户接口（触摸屏监视器，视频监视器或小键盘）的系统）的系统，用于计算校准轨迹的软件程序，以及用于 基于车辆期望位置和实际位置之间的误差，将车辆转向所需或调整的轨迹。 在一个实施例中，非共定位的感测和控制与校准过程结合以帮助消除模型误差。 另一个实施例使用同位置感测（但不是控制）来校准模型。
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公开(公告)号：US07693659B2
公开(公告)日：2010-04-06
申请号：US11190640
申请日：2005-07-27
IPC分类号： G01C21/00
CPC分类号： G01S19/54 , G01C21/165 , G01S19/50
摘要： A satellite navigation system using multiple antennas for providing the position of multiple fiduciary points on an object even when fewer than four satellites are visible to some or all the antennas. Satellite signals from the multiple antennas are fed into at least one receiver. The receiver or receivers utilize constraint information, which is independent of the satellite signals. These external constraints are used to augment the signals received from the satellites, to obtain the position solution for each antenna. In a preferred embodiment, a common reference clock is used to provide an external constraint. Examples of other external constraints that can be used in the current invention are distance between the antennas, inertial measurement of attitude, rotational or linear position sensors, etc.
摘要翻译： 一种使用多个天线的卫星导航系统，用于在物体上提供多个受信点的位置，即使对于一些或所有天线可见少于四颗卫星。 来自多个天线的卫星信号被馈送到至少一个接收机。 接收机或接收机利用独立于卫星信号的约束信息。 这些外部约束用于增加从卫星接收的信号，以获得每个天线的位置解。 在优选实施例中，使用公共参考时钟来提供外部约束。 可以在本发明中使用的其他外部约束的示例是天线之间的距离，姿态的惯性测量，旋转或线性位置传感器等。
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公开(公告)号：US07468697B2
公开(公告)日：2008-12-23
申请号：US11499827
申请日：2006-08-04
IPC分类号： G01S3/02
CPC分类号： G01S13/87 , G01S5/0289 , G01S7/003 , G01S13/74
摘要： A precise positioning method and system is disclosed for allowing an array of ground transmitters to self-survey their relative location at centimeter-level accuracy by transmitting, amongst the ground transmitters in the array, bi-directional ranging signals associated with a wideband code modulation with a chipping rate faster than 30 MHz.
摘要翻译： 公开了一种精确的定位方法和系统，用于通过在阵列中的地面发射机之间传输与宽带码调制相关联的双向测距信号，允许地面发射机阵列以厘米级精度自我测量它们的相对位置， 芯片速度比30 MHz快。
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公开(公告)号：US07385554B2
公开(公告)日：2008-06-10
申请号：US11515547
申请日：2006-09-05
摘要： In a local positioning system, augmentation of the land-based system is provided by receiving signals from a GNSS. The signals from the land-based positioning system have a code phase accuracy better than one wavelength of a carrier of the signals from the GNSS. Different decorrelation may be used for signals from a satellite than from a land-based transmitter, such as using a digital decorrelator for signals from the satellite and an analog decorrelator for signals from a land-based transmitter. The receivers may include both a GNSS antenna and a local antenna. The phase centers of the two antennas are within one wavelength of the GNSS signals from each other. The local antenna is sized for operation in the X or ISM-bands of frequencies. The GNSS antenna is a patch antenna where the microwave antenna extends away from the patch antenna in at least one dimension.
摘要翻译： 在本地定位系统中，通过从GNSS接收信号来提供陆基系统的增强。 来自陆上定位系统的信号的编码相位精度优于来自GNSS的信号的载波的一个波长。 不同的去相关可以用于来自卫星的信号，而不是来自基于陆地的发射机，例如对于来自卫星的信号使用数字解相关器和用于来自陆基发射机的信号的模拟去相关器。 接收机可以包括GNSS天线和本地天线。 两个天线的相位中心在GNSS信号的一个波长内。 本地天线的大小适合在X或ISM频段中运行。 GNSS天线是贴片天线，其中微波天线在至少一个维度上远离贴片天线延伸。
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公开(公告)号：US07345627B2
公开(公告)日：2008-03-18
申请号：US11506587
申请日：2006-08-18
申请人： Kurt R. Zimmerman , H. Stewart Cobb
发明人： Kurt R. Zimmerman , H. Stewart Cobb
IPC分类号： G01S3/02
CPC分类号： G01S19/11 , G01S5/0009 , G01S19/36 , G01S19/37 , G01S19/41 , G01S19/44 , H01Q5/378 , H01Q5/40 , H01Q9/0414 , H01Q9/0464 , H01Q11/08
摘要： To provide sub-meter accuracy in a local positioning system, ranging signals with a high modulation rate of code, such as 30 MHz, or more are transmitted. Code phase measurements may be used to obtain the accuracy without requiring relative motion or real time kinematic processing. The ISM or X-band is used for the carrier of the code to provide sufficient bandwidth within available spectrums. The length of codes used is less than or about a longest length across the region of operation, such as less than 15 kilometers in an open pit mine. The spread spectrum codes from different land-based transmitters are transmitted in time slots pursuant to a time division multiple access scheme for an increase in dynamic range. To avoid overlapping of code from different transmitters, each time slot includes or is separated by a blanking period. The blanking period is selected to allow the transmitted signal to traverse a region of operation. Differential measurements of signals received at a base station and a mobile receiver may improve accuracy.
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