公开(公告)号：US20230400591A1

公开(公告)日：2023-12-14

申请号：US18104726

申请日：2023-02-01

申请人： Viavi Solutions, Inc.

发明人： Gregor Said Jackson ,  Giovanni D'Andrea

IPC分类号： G01S19/36 ,  G01S19/32 ,  G01S19/42 ,  G01S19/23

CPC分类号： G01S19/36 ,  G01S19/23 ,  G01S19/426 ,  G01S19/32

摘要： In one embodiment, the present invention includes a method of receiving and decoding military L2 or L1 P(Y) or M-Code signals and re-transmitting these in real-time as legacy L1-C/A signals. The decoding process of the P(Y) or M-code is done through the programming by the user of secret keys into an embodiment of this invention. These military code signals are then decoded into standard PVT/PNT information which are typically transmitted on an industry standard serial port and format, which are then re-encoded using a real-time GPS simulator sub-system as legacy L1-C/A code signals, and transmitted to the output of the embodiment of this invention as a standard antenna signal. This output signal could be made compatible with any commercial L1-C/A code GPS receiver, and may thus be decoded by the GPS receiver as if the signals had been received directly from the Satellites. In one application of this embodiment of this present invention the legacy GPS receiver does not know the difference and cannot differentiate between signals generated by this embodiment of the present invention versus true GPS satellite signals received by a real GPS antenna. This embodiment of the present invention allows efficient replacement of legacy GPS antennae without having to change any of the system, setup, cabling, or programming of the legacy GPS receiver system. Another embodiment of this present invention may receive Glonass, BeiDou, or Galileo signals, and output legacy GPS signals to allow a glueless retrofit of legacy GPS receivers to Glonass, BeiDou, or Galileo compatibility.

公开(公告)号：US11691699B2

公开(公告)日：2023-07-04

申请号：US16872620

申请日：2020-05-12

申请人： ThayerMahan, Inc.

发明人： Alexander Lorman

IPC分类号： B63B49/00 ,  G01S19/41 ,  G06F30/331 ,  G01S19/42 ,  B60W60/00

CPC分类号： B63B49/00 ,  G01S19/41 ,  G01S19/426 ,  G06F30/331 ,  B60W60/0011

摘要： Described are navigational systems for vehicles including modular, field-swappable and field-configurable components and a plurality of operational modes.

公开(公告)号：US20180259650A1

公开(公告)日：2018-09-13

申请号：US15977296

申请日：2018-05-11

申请人： Continental Teves AG & Co. oHG

发明人： Henrik Antoni ,  Pierre Blüher ,  Ulrich Stählin ,  Michael Zalewski

IPC分类号： G01S19/42 ,  G01S19/33 ,  G01S19/36

CPC分类号： G01S19/423 ,  G01S19/20 ,  G01S19/215 ,  G01S19/33 ,  G01S19/36 ,  G01S19/426

摘要： A system for receiving and processing satellite signals from satellites of global navigation systems, in particular for a vehicle, having a signal path includes a signal conditioning unit for conditioning received satellite signals, an analysis unit for analyzing the conditioned satellite signals, and a position determination unit for determining measured values utilizing the satellite signals provided by the analysis unit. The measured values include a position, a speed, and/or a satellite time. The system has two signal paths which are separate from one another and each process mutually independent satellite signals for a position.

公开(公告)号：US09933523B2

公开(公告)日：2018-04-03

申请号：US13969497

申请日：2013-08-16

申请人： YOUGETITBACK LIMITED

发明人： William Fitzgerald ,  Patrick Conway ,  Peter Bermingham

IPC分类号： G01S19/01 ,  G01S19/42

CPC分类号： G01S19/01 ,  G01S19/426

摘要： There is disclosed systems and methods to enhance reliability of measured position data. Measuring devices, such mobile phones equipped with location measurement elements (such as GPS, LBS, network location reporting, or tower location triangulation reporting) may collect various samples of positions where the device is believed to be located at particular moments in time; however such measurements often vary even if the device is not moving because of device inaccuracy, atmospheric conditions, obstructing buildings, and the like, making it difficult to determine whether such devices are actually stationary or are in motion over predetermined time periods. Systems and methods of the present invention provide for enhanced accuracy of position data by selectively merging varying location positions that are attributable to noise or accuracy deviations, and providing an enhanced assessment of actual device position.

公开(公告)号：US20170343679A1

公开(公告)日：2017-11-30

申请号：US15665461

申请日：2017-08-01

申请人： YAN SHEN ,  YUANBO LI

发明人： YAN SHEN ,  YUANBO LI

IPC分类号： G01S19/41 ,  G01S19/36

CPC分类号： G01S19/41 ,  G01S19/36 ,  G01S19/426

摘要： The present invention relates to a high-precision real-time satellite positioning apparatus and a method thereof. The present invention has technical features as follows: the apparatus includes a polygonal receiver array formed by a plurality of single-point satellite positioning receivers; an antenna phase center of each single point satellite positioning receiver is disposed at each vertex and center point of the polygonal receiver array; each single-point satellite positioning receiver includes an MCU and a receiver connected with the MCU; and all MCUs are connected in parallel and jointly connected to a processor module.

公开(公告)号：US20170299728A1

公开(公告)日：2017-10-19

申请号：US15074253

申请日：2016-03-18

申请人： Deere & Company

发明人： F. Adhika Pradipta Lie ,  Michael A. Zeitzew ,  Yunfeng Shao ,  Liwen L. Dai

IPC分类号： G01S19/43

CPC分类号： G01S19/43 ,  G01S19/07 ,  G01S19/426 ,  G01S19/45 ,  G01S19/48 ,  G01S19/51

摘要： An offset module or navigation positioning estimator determines a reference frame bias between precise point positioning (PPP) reference frame and an RTK reference frame, where the PPP reference frame is associated with relative position estimates generated by the relative position estimator and where the RTK reference frame is associated RTK position estimates generated by the RTK position estimator. Upon loss of the RTK correction signal, the navigation positioning estimator or controller switches to a relative position mode based a last available RTK position. The relative position estimator determines an estimated relative position based on time-differenced phase measurements by the mobile receiver in the relative position mode. The relative position estimator or offset module offsets the estimated relative position in the relative position mode.

公开(公告)号：US09476990B2

公开(公告)日：2016-10-25

申请号：US14574708

申请日：2014-12-18

申请人： Mitsubishi Electric Research Laboratories, Inc.

发明人： Kyeong Jin Kim ,  Okuary Osechas ,  Andrei Kniazev ,  Kieran Parsons ,  Zafer Sahinoglu

IPC分类号： G01S19/48 ,  B61C17/12 ,  B61L1/14 ,  G01C21/20

CPC分类号： G01S19/48 ,  G01C21/20 ,  G01S19/14 ,  G01S19/26 ,  G01S19/29 ,  G01S19/426 ,  G01S19/50 ,  G01S19/51

摘要： A navigation system includes a first navigation module for determining a first position and a second navigation module for determining a second position. The first and the second navigation modules are mechanically connected, such that the first position is dependent on the second position. Also, the first and the second navigation modules are communicatively connected to exchange information including at least one of the first and the second positions. At an instant of time during an operation of the navigation system, the first navigation module receives the second position from the second navigation module and determines the first position based on the second position.

摘要翻译： 导航系统包括用于确定第一位置的第一导航模块和用于确定第二位置的第二导航模块。 第一和第二导航模块机械连接，使得第一位置取决于第二位置。 此外，第一和第二导航模块通信地连接以交换包括第一和第二位置中的至少一个的信息。 在导航系统操作期间的时刻，第一导航模块从第二导航模块接收第二位置，并且基于第二位置确定第一位置。

公开(公告)号：US20160266259A1

公开(公告)日：2016-09-15

申请号：US14453537

申请日：2014-08-06

申请人： Raytheon Company

发明人： Ian S. Robinson ,  Andrew M. Hautzik ,  Brandon Crow

IPC分类号： G01S19/42 ,  G01S19/21

CPC分类号： G01S19/42 ,  G01S19/215 ,  G01S19/426 ,  G01S19/46 ,  G01S19/50

摘要： A global positioning system (GPS) receiver and system for determining a geographical location associated with the GPS receiver using less than four GPS signals. The system can comprise a constraint module configured to receive one or more constraints that describe at least one characteristic of a GPS receiver when a number of GPS satellites within a line of sight to the GPS receiver is below a defined value. The system can further comprise a pseudo range calculation module configured to calculate a plurality of pseudo ranges between the GPS receiver and the number GPS satellites, wherein the plurality of pseudo ranges are to various orbital positions of the GPS satellites over a period of time; and a geographical location module configured to determine the geographical location of the GPS receiver using the plurality of pseudo ranges and known constraints of motion associated with the GPS receiver.

摘要翻译： 全球定位系统（GPS）接收机和系统，用于使用少于四个GPS信号来确定与GPS接收机相关联的地理位置。 该系统可以包括约束模块，其被配置为当GPS接收机的视线内的GPS卫星数目低于定义值时，接收描述GPS接收机的至少一个特性的一个或多个约束。 所述系统还可以包括：伪距离计算模块，被配置为计算所述GPS接收机与所述GPS卫星数量之间的多个伪距离，其中所述多个伪距离在一段时间内到达所述GPS卫星的各种轨道位置; 以及地理位置模块，被配置为使用与GPS接收机相关联的多个伪距离和已知运动约束来确定GPS接收机的地理位置。

公开(公告)号：US20160018530A1

公开(公告)日：2016-01-21

申请号：US14802895

申请日：2015-07-17

申请人： JAVAD GNSS, Inc.

发明人： Javad ASHJAEE

IPC分类号： G01S19/44

CPC分类号： G01S19/44 ,  G01S19/426 ,  G01S19/428 ,  G01S19/43

摘要： Systems and methods for performing land surveying using real-time kinematic (RTK) engine verification are provided. In one example, a first set of positions of a GNSS receiver may be determined using each of a plurality of RTK engines. If a number of the plurality of RTK engines that produce a fixed solution is greater than or equal to a threshold value, a position of the GNSS receiver may be determined based on at least a portion of the first set of positions. The determined position may then be stored. This process may be repeated any number of times to produce a desired number of stored positions. In response to the number of stored positions being equal to a minimum value, a final position of the GNSS device may be determined based on the stored positions.

摘要翻译： 提供了使用实时运动学（RTK）引擎验证进行土地测量的系统和方法。 在一个示例中，可以使用多个RTK引擎中的每一个确定GNSS接收器的第一组位置。 如果产生固定解的多个RTK引擎的数量大于或等于阈值，则可以基于第一组位置的至少一部分来确定GNSS接收器的位置。 然后可以存储确定的位置。 该过程可以重复任意次数以产生所需数量的存储位置。 响应于存储位置的数量等于最小值，可以基于存储的位置来确定GNSS设备的最终位置。

公开(公告)号：US20150226855A1

公开(公告)日：2015-08-13

申请号：US14428431

申请日：2013-08-07

申请人： TOPCON POSITIONING SYSTEMS, INC

发明人： Sergey Vladislavovich Averin ,  Roman Anatolyevich Nevzorov ,  Andrey Valeryevich Plenkin ,  Vladimir Ivanovich Zubinsky

IPC分类号： G01S19/07

CPC分类号： G01S19/20 ,  G01S19/04 ,  G01S19/07 ,  G01S19/426 ,  G01S19/428 ,  G01S19/43

摘要： Scintillations caused by ionospheric irregularities during Global Navigation Satellite System (GNSS) measurements are detected and mitigated. Detection is based at least in part on statistical properties of geometry-free combination parameters calculated from input GNSS measurements corresponding to the same navigation satellite and different carrier frequencies. Mitigation is based at least in part on ionosphere-free combination parameters calculated from input GNSS measurements corresponding to the same navigation satellite and different carrier frequencies. Depending on the number of satellites with detected scintillations, different algorithms are used to calculate values of target parameters from a set of ionosphere-free combination parameters or from a set of ionosphere-free combination parameters and the remaining input GNSS measurements. Different algorithms accommodate stand-alone mode code phase measurements, stand-alone mode carrier phase measurements, differential navigation mode code phase measurements, and differential navigation mode carrier phase measurements.

摘要翻译： 检测并减轻全球导航卫星系统（GNSS）测量过程中电离层不规则造成的闪电。 检测至少部分地基于从对应于相同导航卫星和不同载波频率的输入GNSS测量计算的几何自由组合参数的统计特性。 减缓至少部分地基于对应于相同导航卫星和不同载波频率的输入GNSS测量计算的无电离层组合参数。 根据具有检测到的闪烁的卫星数量，使用不同的算法从一组无电离子组合参数或一组无电离子组合参数和剩余的输入GNSS测量中计算目标参数的值。 不同的算法适应独立模式码相位测量，独立模式载波相位测量，差分导航模式码相位测量和差分导航模式载波相位测量。