公开(公告)号：US08013787B2

公开(公告)日：2011-09-06

申请号：US10570578

申请日：2004-09-02

申请人： Mangesh Chansarkar ,  Sundar Raman ,  Charles P. Norman ,  Paul A. Underbrink ,  Henry D. Falk ,  James Brown ,  Robert Harvey ,  Peter Michali ,  Williams Higgins ,  Gengsheng Zhang ,  Qingwen Zhang

发明人： Mangesh Chansarkar ,  Sundar Raman ,  Charles P. Norman ,  Paul A. Underbrink ,  Henry D. Falk ,  James Brown ,  Robert Harvey ,  Peter Michali ,  Williams Higgins ,  Gengsheng Zhang ,  Qingwen Zhang

IPC分类号： G01S19/03 ,  G01S19/09 ,  G01S19/37

CPC分类号： G01S19/13 ,  G01S19/24 ,  G01S19/34 ,  G01S19/37 ,  H04B1/707 ,  H04B2201/70715

摘要： Control and feature systems for processing signals from a satellite positioning system include an expert system receiver manager; a joint detection, carrier centering and bit sync acquisition subsystem; peak detection; a multi-dimensional measurement interpolation subsystem; a subsystem for mode switching between a navigational signal; and power control module for a receiver.

摘要翻译： 用于处理来自卫星定位系统的信号的控制和特征系统包括专家系统接收器管理器; 联合检测，载波中心和位同步采集子系统; 峰值检测; 多维测量插值子系统; 用于导航信号之间的模式切换的子系统; 和接收机的电源控制模块。

公开(公告)号：US07995683B2

公开(公告)日：2011-08-09

申请号：US11923500

申请日：2007-10-24

申请人： Xiang Yuan ,  Gang Xie

发明人： Xiang Yuan ,  Gang Xie

IPC分类号： H03D1/00

CPC分类号： G01S19/30 ,  G01S19/37 ,  H04B1/7075 ,  H04B1/7085 ,  H04B2201/70715

摘要： A system and method for providing code tracking in a CDMA based communications receiver. In example systems and methods, a CDMA receiver, such as a GPS receiver, receives a signal and demodulates the signal to yield a digital IF signal. The digital IF signal is down-converted to a received code signal. Early, prompt and late correlation results are determined by correlating the received code signal with early, prompt and late duplicates of the received code signal. The early, prompt and late correlation results are used to calculate a code phase error using a noise-floor independent function of all three correlation results.

摘要翻译： 一种用于在基于CDMA的通信接收机中提供码跟踪的系统和方法。 在示例性系统和方法中，诸如GPS接收机的CDMA接收机接收信号并对信号进行解调以产生数字IF信号。 数字IF信号被下变频为接收的代码信号。 通过将接收到的代码信号与接收到的代码信号的早期，迅速和晚期重复相关来确定早期，及时和晚期的相关结果。 早期，及时和晚期相关结果用于使用所有三个相关结果的噪声层独立函数来计算码相位误差。

公开(公告)号：US07994977B2

公开(公告)日：2011-08-09

申请号：US12326879

申请日：2008-12-02

申请人： Gary Lennen

发明人： Gary Lennen

IPC分类号： G01S19/37 ,  G01S19/33

CPC分类号： G01S19/33

摘要： A system and method capable of mitigating the migration from the current GPS system to the Galileo system and allow a single satellite system positioning receiver to process both GPS signals and Galileo signals.

摘要翻译： 一种能够减轻从当前GPS系统迁移到伽利略系统并允许单个卫星系统定位接收机处理GPS信号和伽利略信号的系统和方法。

公开(公告)号：US07986952B2

公开(公告)日：2011-07-26

申请号：US11438915

申请日：2006-05-22

申请人： Anthony J. Orler ,  Ashutosh Pende

发明人： Anthony J. Orler ,  Ashutosh Pende

IPC分类号： H04Q1/00

CPC分类号： H04W64/00

摘要： A cellular telephone for use with a cellular telephone network includes a GPS receiver section. Position determination related information is transmitted to and from the cellular telephone using a control channel.

摘要翻译： 与蜂窝电话网络一起使用的蜂窝电话包括GPS接收机部分。 使用控制信道将位置确定相关信息发送到蜂窝电话和从蜂窝电话发送。

公开(公告)号：US07974642B2

公开(公告)日：2011-07-05

申请号：US11676927

申请日：2007-02-20

申请人： Xiangdong Lin ,  Mangesh Chambarkar ,  Marlene Wan ,  Lionel Garin

发明人： Xiangdong Lin ,  Mangesh Chambarkar ,  Marlene Wan ,  Lionel Garin

IPC分类号： H04Q5/00

CPC分类号： H04W64/00 ,  G01S5/02 ,  G01S5/0242 ,  G01S5/0278 ,  G01S19/06

摘要： Systems and methods for estimating a cell center location in a wireless communication system having all interface to a satellite positioning system (“SPS”) such as for example, a Geosynchronous Positioning System (“GPS”). The wireless communication system provides service to mobile stations within a cell, each mobile station includes a SPS receiver. Examples of the systems and methods for estimating a cell center location analyze the mobile station locations in a cell as a uniform distribution of mobile station locations and calculate a statistical measure characterizing the mobile station locations as a function of the mobile station locations. In one example, the statistical measure is a maximum likelihood mobile station location. In another example, the statistical measure is the mean mobile station location in the cell. The estimated cell center location may be used to approximate the location of the mobile station during a warm or cold restart of the SPS receiver part of the mobile station.

摘要翻译： 用于估计具有与诸如地球同步定位系统（“GPS”）的卫星定位系统（“SPS”）全部接口的无线通信系统中的小区中心位置的系统和方法。 无线通信系统向小区内的移动台提供服务，每个移动站包括SPS接收机。 用于估计小区中心位置的系统和方法的示例将小区中的移动站位置分析为移动站位置的均匀分布，并且计算表征作为移动站位置的函数的移动站位置的统计量度量。 在一个示例中，统计测量是最大似然移动站位置。 在另一示例中，统计测量是小区中的平均移动站位置。 估计的小区中心位置可以用于在移动台的SPS接收机部分的暖或冷重启期间近似移动台的位置。

公开(公告)号：US07970411B2

公开(公告)日：2011-06-28

申请号：US10885507

申请日：2004-07-03

申请人： Ashutosh Pande ,  Lionel Jacques Garin ,  Kanwar Chadha ,  Kurt Christian Schmidt ,  Leon Kuo-Liang Peng ,  Gengsheng Zhang ,  Nicolas Patrick Vantalon ,  Gregory B. Turetzky

发明人： Ashutosh Pande ,  Lionel Jacques Garin ,  Kanwar Chadha ,  Kurt Christian Schmidt ,  Leon Kuo-Liang Peng ,  Gengsheng Zhang ,  Nicolas Patrick Vantalon ,  Gregory B. Turetzky

IPC分类号： H04W24/00

CPC分类号： G01S19/05 ,  G01S5/0027 ,  G01S19/17 ,  G01S19/25

摘要： An Aided Location Communication System (“ALCS”) is described that may include a geolocation server and a wireless communication device having a GPS section where the GPS receiver section is capable of being selectively switched between a standalone mode and at least one other mode for determining a geolocation of the wireless communications device. An Aided Location Communication Device (“ALCD”) is also described. The ALCD includes a position-determination section having a GPS receiver and a communication section where the position-determination section is selectively switchable between a GPS-standalone mode and at least one other mode for determining a geolocation of the ALCD.

摘要翻译： 描述了可以包括地理位置服务器和具有GPS部分的无线通信设备的辅助定位通信系统（“ALCS”），其中GPS接收机部分能够在独立模式和至少一个其他模式之间选择性地切换以确定 无线通信设备的地理位置。 还描述了辅助位置通信设备（“ALCD”）。 ALCD包括具有GPS接收机和通信部分的位置确定部分，其中位置确定部分可以在GPS独立模式和用于确定ALCD的地理位置的至少一个其他模式之间有选择地切换。

公开(公告)号：US20110102258A1

公开(公告)日：2011-05-05

申请号：US10570833

申请日：2004-09-02

申请人： Paul A. Underbrink ,  Henry D. Falk ,  Steven A. Gronemeyer ,  Chittharanjan Dassannacharya ,  Charles P. Norman ,  Nicolas Vantalon ,  Vojislav Protic

发明人： Paul A. Underbrink ,  Henry D. Falk ,  Steven A. Gronemeyer ,  Chittharanjan Dassannacharya ,  Charles P. Norman ,  Nicolas Vantalon ,  Vojislav Protic

IPC分类号： G01S19/10 ,  G01S19/13 ,  G01S19/24

CPC分类号： H04B1/707 ,  G01S19/37 ,  H04B2201/70715

摘要： A signal processing system for processing satellite positioning signals is described. The system comprises at least one processor and a signal processor operating under a number of operational modes. The signal processor includes at last one of a signal processing subsystem, a fast Fourier transform (FFT) subsystem, and a memory subsystem that are each dynamically and independently configurable in response to the operational modes. Further, the system includes a controller that couples to control transfer of data among the signal processing subsystem and the FFT subsystem via the memory subsystem. Configurability of the memory subsystem includes configuring the memory subsystem into regions according to the operational modes where each region is accessible in one of a number of manners according to the operational modes.

摘要翻译： 描述了一种用于处理卫星定位信号的信号处理系统。 该系统包括在多种操作模式下操作的至少一个处理器和信号处理器。 信号处理器包括信号处理子系统，快速傅里叶变换（FFT）子系统和存储器子系统中的最后一个，每个动态和独立可配置以响应于操作模式。 此外，该系统包括控制器，其经由存储器子系统耦合以控制信号处理子系统和FFT子系统之间的数据传送。 存储器子系统的可配置性包括根据操作模式将存储器子系统配置到区域中，根据操作模式，可以以多种方式之一访问每个区域。

公开(公告)号：US20110034132A1

公开(公告)日：2011-02-10

申请号：US12537295

申请日：2009-08-07

申请人： Daniel Babitch

发明人： Daniel Babitch

IPC分类号： H04B1/40

CPC分类号： H04B15/02 ,  H03L7/16 ,  H04B2215/064 ,  H04B2215/065

摘要： Systems and methods for minimizing electromagnetic interference are provided. A representative electronic device includes a frequency generator that generates clock signals and a computing device that selects at least one generator frequency that minimizes or eliminates electromagnetic interference based on one or more radio bands of interest. The computing device is designed to send instructions associated with synthesizing the at least one generator frequency. The electronic device further includes a frequency synthesizer that receives the generated clock signals and instructions from the frequency generator and the computing device, respectively. The frequency synthesizer synthesizes the at least one generator frequency based on the received clock signal.

摘要翻译： 提供了用于最小化电磁干扰的系统和方法。 代表性的电子设备包括产生时钟信号的频率发生器和选择至少一个发生器频率的计算设备，所述至少一个发生器频率使基于一个或多个感兴趣的无线电频段的电磁干扰最小化或消除。 计算设备被设计成发送与合成至少一个发生器频率相关联的指令。 电子装置还包括频率合成器，其分别从频率发生器和计算装置接收生成的时钟信号和指令。 频率合成器基于所接收的时钟信号来合成至少一个发生器频率。

公开(公告)号：US07881407B2

公开(公告)日：2011-02-01

申请号：US12199066

申请日：2008-08-27

申请人： Mangesh Chansarkar ,  Gang Xie ,  Sanjai Kohli

发明人： Mangesh Chansarkar ,  Gang Xie ,  Sanjai Kohli

IPC分类号： H04L27/00 ,  H03D1/04 ,  G01S19/00

CPC分类号： H04B7/216 ,  G01S19/22 ,  G01S19/40 ,  G01S19/42 ,  G01S19/49 ,  H04B1/707 ,  H04B1/7085 ,  H04B1/7115 ,  H04B2001/70706 ,  H04B2201/70715

摘要： Systems and methods for mitigating multipath signals in a receiver are provided. In this regard, a representative system, among others, includes a receiver comprising an antenna being configured to receive signals from a plurality of satellites, and a computing device being configured to: generate pseudorange measurements based on the received satellites signals, process the generated pseudorange measurements to reduce its pseudorange residuals based on statistical modeling in order to mitigate multipath errors, and compute navigation solutions based on the processed pseudorange measurements. A representative method, among others, for mitigating multipath signals in a receiver, comprises: receiving the pseudorange measurements; processing the received pseudorange measurements to reduce its pseudorange residuals based on statistical modeling in order to mitigate multipath errors; and computing navigation solutions based on the processed pseudorange measurements.

摘要翻译： 提供了用于减轻接收机中的多径信号的系统和方法。 在这方面，代表性系统包括：接收机，其包括被配置为从多个卫星接收信号的天线，以及计算设备，被配置为：基于所接收的卫星信号产生伪距测量，处理所产生的伪距 基于统计建模来减少其伪距残差的测量，以减轻多路径误差，并根据处理的伪距测量计算导航解。 用于减轻接收机中的多路径信号的代表性方法包括：接收伪距测量; 处理所接收到的伪距测量以便基于统计建模来减少其伪距残差以便减轻多路径误差; 以及基于经处理的伪距测量的计算导航解决方案。

公开(公告)号：US07869948B2

公开(公告)日：2011-01-11

申请号：US11741448

申请日：2007-04-27

申请人： Shaowei Han

发明人： Shaowei Han

IPC分类号： G01C21/20

CPC分类号： G01S19/25 ,  G01S19/27

摘要： Provided herein are methods and system for enabling a navigation receiver to generate receiver specific satellite orbital models based on relatively small sets of parameters obtained from a server. In an embodiment, a set of parameters for a satellite includes a force parameter (e.g., solar radiation pressure), initial condition parameters (e.g., satellite position and velocity at a time instance) and time correction coefficients, which the receiver uses in a numerical integration to predict the position of the satellite. The set of parameters needed for the integration is small compared to current methods which require transmission of a complete set of ephemeris and other parameters for each satellite. Since the set of parameters is relatively small, it requires less communication resources to transmit compared to current methods. Further, the integration based on the small set of parameters enables the receiver to predict satellite orbits with low computational load.

摘要翻译： 本文提供的方法和系统使得导航接收机能够基于从服务器获得的相对小的参数集合来生成接收机专用卫星轨道模型。 在一个实施例中，用于卫星的一组参数包括力参数（例如，太阳辐射压力），初始条件参数（例如，时间上的卫星位置和速度）和时间校正系数，接收器使用数字 整合以预测卫星的位置。 与需要传输一组完整的星历和每个卫星的其他参数的当前方法相比，集成所需的一组参数较小。 由于该组参数相对较小，因此与当前方法相比，传输资源要少。 此外，基于小的参数集合的集成使得接收机能够以低计算负荷来预测卫星轨道。