公开(公告)号：WO2011136886A1

公开(公告)日：2011-11-03

申请号：PCT/US2011029892

申请日：2011-03-25

Applicant: NAVCOM TECH INC ,  DAI LIWEN ,  SHAO YUNFENG ,  ESLINGER DANIEL J

Inventor： DAI LIWEN ,  SHAO YUNFENG ,  ESLINGER DANIEL J

IPC: G01S19/53

CPC classification number: G01S19/54

Abstract: A system and method for determining the heading angle of a vehicle includes first and second antennas (12, 14) associated with the vehicle. The first and second antennas (12, 14) are configured to receive signals comprising global positioning system data. A receiver front end (18) is configured to receive the signals comprising global positioning system data. An electronic data processor (32) is capable of receiving the global positioning system data from the receiver front end (18). The data processor (32) is configured or programmed to execute a method to determine the attitude of the vehicle which may include the heading angle of the vehicle.

Abstract translation: 用于确定车辆的航向角度的系统和方法包括与车辆相关联的第一和第二天线（12,14）。 第一和第二天线（12,14）被配置为接收包括全球定位系统数据的信号。 接收器前端（18）被配置为接收包括全球定位系统数据的信号。 电子数据处理器（32）能够从接收器前端（18）接收全球定位系统数据。 数据处理器（32）被配置或编程为执行一种方法来确定可以包括车辆的行进角的车辆的姿态。

公开(公告)号：WO2005027283A3

公开(公告)日：2005-06-02

申请号：PCT/US2004027344

申请日：2004-08-19

Applicant: NAVCOM TECH INC ,  HATCH RONALD R ,  SHARPE RICHARD T ,  YANG YUNCHUN

Inventor： HATCH RONALD R ,  SHARPE RICHARD T ,  YANG YUNCHUN

IPC: G01S19/48 ,  G01S1/00 ,  G01S19/20

CPC classification number: G01S19/20

Abstract: A method for detecting and identifying a faulty measurement among a plurality of GPS measurements, obtained by a GPS receiver with respect to a plurality of satellites in view of the GPS receiver, determines whether the plurality', of GPS measurements include a faulty measurement. In response to a determination that the plurality of GPS measurements include a faulty measurement, the method identifies a satellite contributing the faulty measurement by computing a correlation value associated with each of the plurality of satellites, and selecting a satellite associated with a highest correlation value as the satellite contributing the faulty measurement.

Abstract translation: 根据GPS接收机，通过GPS接收机相对于多个卫星获得的多个GPS测量结果中检测和识别故障测量的方法确定多个GPS测量是否包括故障测量。 响应于多个GPS测量包括故障测量的确定，该方法通过计算与多个卫星中的每一个相关联的相关值来识别贡献故障测量的卫星，并且选择与最高相关值相关联的卫星作为 该卫星造成有缺陷的测量。

公开(公告)号：WO2008054506A2

公开(公告)日：2008-05-08

申请号：PCT/US2007008960

申请日：2007-04-10

Applicant: NAVCOM TECH INC ,  KNIGHT JERRY E ,  CAHN CHARLES R ,  LI DAVID MAN KUI

Inventor： KNIGHT JERRY E ,  CAHN CHARLES R ,  LI DAVID MAN KUI

IPC: G01S19/30 ,  G01S19/33 ,  G01S19/37

CPC classification number: H04B1/707 ,  G01S19/30 ,  G01S19/33 ,  G01S19/37 ,  H04B2201/70707 ,  H04B2201/70715 ,  H04J13/00 ,  H04J13/10

Abstract: A satellite navigation device 110 including a receiver having an adjustable code generator is described. The adjustable code generator is configurable to generate a set of spread-spectrum code signals. Each spread-spectrum code signal has a respective length corresponding to a repetition period. The set of spread-spectrum code signals includes first and second spread-spectrum code signals having distinct first and second lengths.

Abstract translation: 描述了包括具有可调节代码生成器的接收器的卫星导航装置110。 可调节码发生器可配置为产生一组扩频码信号。 每个扩频码信号具有对应于重复周期的相应长度。 扩频码信号的集合包括具有不同的第一和第二长度的第一和第二扩频码信号。

公开(公告)号：WO2008008146A3

公开(公告)日：2008-04-10

申请号：PCT/US2007013814

申请日：2007-06-13

Applicant: NAVCOM TECH INC ,  ESLINGER DANIEL J ,  SUN JING ,  SHARPE RICHARD T ,  NELSON FREDERICK W ,  PICKETT TERENCE D ,  HATCH RONALD R

Inventor： ESLINGER DANIEL J ,  SUN JING ,  SHARPE RICHARD T ,  NELSON FREDERICK W ,  PICKETT TERENCE D ,  HATCH RONALD R

IPC: G01S19/48 ,  G01S19/43 ,  G01S19/44

CPC classification number: G01S19/48 ,  G01S19/43 ,  G01S19/44

Abstract: The present invention includes a method for a combined use of a local positioning system, a local RTK system and a regional, wide-area, or global differential carrier-phase positioning system (WADGPS) in which disadvantages associated with the local positioning system, the RTK and the WADGPS navigation techniques when used separately are avoided. The method includes determining a first position of the object based on information from the WADGPS, and determining a second position of the object based on position information from a local positioning / RTK positioning system. Thereafter, position determined by the WADGPS and the position determined by the local positioning / RTK positioning system are compared. The WADGPS position is used for navigating the object when the WADGPS position and local positioning / position differ by more than a predefined threshold, and using the local positioning / RTK position for navigating the object when the WADGPS position and local positioning / RTK position differ by less than the predefined threshold.

Abstract translation: 本发明包括一种组合使用本地定位系统，本地RTK系统和区域广域或全球差分载波相位定位系统（WADGPS）的方法，其中与本地定位系统相关的缺点 避免使用RTK和WADGPS导航技术。 该方法包括基于来自WADGPS的信息来确定对象的第一位置，并且基于来自本地定位/ RTK定位系统的位置信息确定对象的第二位置。 此后，比较由WADGPS确定的位置和由本地定位/ RTK定位系统确定的位置。 当WADGPS位置和本地定位/位置相差超过预定阈值时，WADGPS位置用于导航对象，并且当WADGPS位置和本地定位/ RTK位置相差不同时使用本地定位/ RTK位置来导航对象 小于预定阈值。

公开(公告)号：WO2006110262A3

公开(公告)日：2006-12-14

申请号：PCT/US2006009834

申请日：2006-03-14

Applicant: NAVCOM TECH INC ,  STEPHENS SCOTT ADAM

Inventor： STEPHENS SCOTT ADAM

IPC: G01S3/72 ,  G01S3/50 ,  G01S7/02 ,  G01S7/42 ,  G01S13/18 ,  G01S13/75 ,  G01S13/87

CPC classification number: G01S7/026 ,  G01S3/50 ,  G01S3/72 ,  G01S7/42 ,  G01S13/46 ,  G01S13/75 ,  G01S13/876 ,  G01S2013/466 ,  G01S2013/468

Abstract: In one embodiment of a positioning system, a transmit element is configured to transmit at least one electromagnetic pulse having a carrier signal frequency. An antenna array with a plurality of receive elements includes at least two receive elements separated by a spacing more than a half wavelength. Each of the at least two receive elements is configured to receive a return signal over a period of time. The return signal includes a return pulse from an object within a detection area of the system. The wavelength corresponds to the carrier signal frequency of the transmitted pulse. A detector is configured to process the return signal from one receive element and the other receive element so as to isolate the return pulse received at each of the at least two receive elements and thereby determine a position of the object in relation to the system.

Abstract translation: 在定位系统的一个实施例中，发射元件被配置为传送具有载波信号频率的至少一个电磁脉冲。 具有多个接收元件的天线阵列包括至少两个以多于半波长间隔的接收元件。 所述至少两个接收元件中的每一个被配置为在一段时间内接收返回信号。 返回信号包括来自系统的检测区域内的对象的返回脉冲。 波长对应于发射脉冲的载波信号频率。 检测器被配置为处理来自一个接收元件和另一个接收元件的返回信号，以隔离在至少两个接收元件中的每一个接收的返回脉冲，从而确定物体相对于系统的位置。

公开(公告)号：WO2007089767A3

公开(公告)日：2007-10-11

申请号：PCT/US2007002514

申请日：2007-01-31

Applicant: NAVCOM TECH INC ,  HATCH RONALD R ,  STEPHENS SCOTT ADAM

Inventor： HATCH RONALD R ,  STEPHENS SCOTT ADAM

IPC: G01S19/48 ,  G01S5/14 ,  G01S19/41 ,  G01S19/44

CPC classification number: G01S19/41 ,  G01S19/44

Abstract: The present invention includes a method for a combined use of a local positioning system (174), a local RTK system (150) and a regional, wide-area, or global differential carrier-phase positioning system (100) (WADGPS) in which disadvantages associated with the local positioning system (174), the RTK (150) and the WADGPS (100) navigation techniques when used separately are avoided. The method includes using a known position of a user receiver (142) that has been stationary or using ah RTK system (150) to initialize the floating ambiguity values in the WADGPS system (100) when the user receiver (142) is moving. Thereafter, the refraction-corrected carrier-phase measurements obtained at the user GPS receiver (142) are adjusted by including the corresponding initial floating ambiguity values and the floating ambiguity values are treated as well known (small variance) in subsequent processes to position the user receiver (142) in the WADGPS system (100).

Abstract translation: 本发明包括用于组合使用本地定位系统（174），本地RTK系统（150）和区域性，广域或全球差分载波相位定位系统（100）（WADGPS）的方法，其中， 避免了与本地定位系统（174），RTK（150）和WADGPS（100）单独使用时的导航技术相关的缺点。 该方法包括当用户接收机（142）移动时，使用已经静止的用户接收机（142）的已知位置或使用RTK系统（150）初始化WADGPS系统（100）中的浮动模糊度值。 此后，通过包括相应的初始浮点模糊度值来调整在用户GPS接收器（142）处获得的折射校正的载波相位测量值，并且在随后的过程中将浮点模糊度值众所周知（小方差）以对用户进行定位 接收器（142）在WADGPS系统（100）中。

公开(公告)号：WO2005011131A3

公开(公告)日：2006-05-04

申请号：PCT/US2004019967

申请日：2004-06-18

Applicant: NAVCOM TECH INC ,  WOO RICHARD KAI-TUEN ,  RENTZ MARK LINDSAY ,  STEPHENS SCOTT ADAM ,  KAPLAN MARK PHILIP

Inventor： WOO RICHARD KAI-TUEN ,  RENTZ MARK LINDSAY ,  STEPHENS SCOTT ADAM ,  KAPLAN MARK PHILIP

IPC: G01S19/11 ,  G01S5/02 ,  G01S5/14 ,  H04J3/06 ,  H04L7/00 ,  H04Q7/38

CPC classification number: G01S11/08 ,  G01S5/021 ,  G01S5/0289 ,  G01S5/14

Abstract: A positioning system includes a plurality of devices configured to exchange RF signals with one another. A first device periodically receives a message from each other device during time slots assigned them. The received message includes information representing a time of arrival at the other device of a respective message transmitted by the first device. A time of arrival of the message from each of the other devices is determined by the first device. The first device periodically transmits messages to the other devices, each transmitted message including information representing the determined time of arrival for at least one of the other devices. A range from the first device to each of a plurality of the other devices is determined as function of the determined time of arrival of the message from the other device and the time of arrival information in the message from the other device.

Abstract translation: 定位系统包括被配置为彼此交换RF信号的多个设备。 第一设备在分配给它们的时隙期间周期性地从彼此的设备接收消息。 接收到的消息包括表示由第一设备发送的相应消息的到达另一设备的时间的信息。 来自每个其他设备的消息的到达时间由第一设备确定。 第一设备周期性地向其他设备发送消息，每个发送的消息包括表示至少一个其他设备的确定的到达时间的信息。 从第一设备到多个其他设备中的每一个的范围被确定为来自另一个设备的消息的确定的到达时间和来自另一设备的消息中的到达时间信息的功能的函数。

公开(公告)号：WO2005043186A3

公开(公告)日：2005-10-20

申请号：PCT/US2004023461

申请日：2004-07-20

Applicant: NAVCOM TECH INC ,  SHARPE RICHARD T ,  HATCH RONALD R ,  NELSON FREDERICK W

Inventor： SHARPE RICHARD T ,  HATCH RONALD R ,  NELSON FREDERICK W

IPC: G01S5/14 ,  G01S19/07 ,  G01S19/41 ,  G01S19/48

CPC classification number: G01S19/07 ,  G01S19/41

Abstract: A method for generating satellite clock corrections for a WADGPS network computes satellite dock corrections after removing other substantial error components. Errors caused by the ionospheric refraction effects are removed from GPS measurements taken at reference stations using dual-frequency GPS measurements. The multipath noise are removed by smoothing of GPS pseudorange code measurements with carrier-phase measurements. The tropospheric refraction effect can be largely removed by modeling, and if desired, can be improved by the use of small stochastic adjustments included in the computation of the clock correction. After removing the above error factors, satellite clock corrections are computed for individual reference stations, and an average clock correction is formed for each of a plurality of satellites by taking an average or weighted average of the satellite clock corrections over reference stations to which the satellite is visible.

Abstract translation: 用于生成WADGPS网络的卫星时钟校正的方法在移除其他实质性误差分量之后计算卫星坞站校正。 使用双频GPS测量，在参考站进行的GPS测量中将消除由电离层折射效应引起的误差。 通过使用载波相位测量平滑GPS伪距代码测量来消除多径噪声。 通过建模可以很大程度地消除对流层折射效应，并且如果需要，可以通过使用包括在时钟校正计算中的小随机调整来改善。 在去除上述误差因素之后，针对各个参考站计算卫星时钟校正，并且通过对该卫星参考站取得卫星时钟校正的平均或加权平均值，为多个卫星中的每一个形成平均时钟校正 是可见的。

公开(公告)号：WO2005036202B1

公开(公告)日：2005-05-12

申请号：PCT/US2004033482

申请日：2004-10-07

Applicant: NAVCOM TECH INC ,  HATCH RONALD R

Inventor： HATCH RONALD R

IPC: G01S19/04 ,  G01S19/07 ,  G01S19/22 ,  G01S19/41 ,  G01S19/44 ,  G01S19/48 ,  G01S5/14

CPC classification number: G01S19/44 ,  G01S19/41

Abstract: The present invention includes a method for generating an ambiguity-resolved, refraction-corrected, and noise-minimized carrier-phase measurement- The method includes forming a first composite measurement using GPS carrier-phase measurements on the L1, L2 and L5 frequencies. To reduce the noise in the first composite measurement, the method further includes forming a second composite measurement using GPS carrier-phase measurements on at least two of the three GPS carrier frequencies. The second composite measurement is formed to have a small multi-path noise therein so that it can be used to smooth the first composite measurement so that the multipath noise is minimized.

Abstract translation: 本发明包括用于生成模糊度分辨，折射校正和噪声最小化的载波相位测量的方法。该方法包括在L1，L2和L5频率上使用GPS载波相位测量形成第一复合测量。 为了减少第一复合测量中的噪声，该方法还包括在三个GPS载波频率中的至少两个GPS载波频率上使用GPS载波相位测量形成第二复合测量。 第二组合测量被形成为在其中具有小的多路径噪声，使得它可以用于平滑第一组合测量，使得多路径噪声最小化。

公开(公告)号：WO2011094091A3

公开(公告)日：2011-09-22

申请号：PCT/US2011021531

申请日：2011-01-18

Applicant: NAVCOM TECH INC ,  DAI LIWEN ,  WANG CHAOCHAO ,  ESLINGER DANIEL J

Inventor： DAI LIWEN ,  WANG CHAOCHAO ,  ESLINGER DANIEL J

IPC: G01S19/44 ,  G01S19/23

CPC classification number: G01S19/44 ,  G01S19/23

Abstract: A method and system for estimating the position comprises measuring a first carrier phase of a first carrier signal and a second carrier phase of a second carrier signal received by a location-determining receiver (10). A primary real time kinematic (RTK) engine (18) or receiver data processing system (16) estimates a primary integer ambiguity set associated with at least one of the measured first carrier phase and the measured second carrier phase. A quality evaluator (22) determines if a primary integer ambiguity set is resolved correctly to the predefined reliability rate during an earlier evaluation period. A secondary real time kinematic (RTK) engine (20) or receiver data processing system (16) estimates a secondary integer ambiguity set associated with at least one of the measured first carrier phase and the measured second carrier phase during a later period following the earlier evaluation period.

Abstract translation: 用于估计位置的方法和系统包括测量第一载波信号的第一载波相位和由位置确定接收器（10）接收的第二载波信号的第二载波相位。 初级实时运动学（RTK）引擎（18）或接收机数据处理系统（16）估计与所测量的第一载波相位和所测量的第二载波相位中的至少一个相关联的主要整数模糊度集合。 质量评估器（22）确定在较早的评估周期期间主要整数模糊集是否正确地解析为预定的可靠性率。 次级实时运动学（RTK）引擎（20）或接收机数据处理系统（16）估计与之前的较晚时间段中的测量的第一载波相位和测量的第二载波相位中的至少一个相关联的次级整数模糊度集合 评估期。