公开(公告)号：US20040198395A1

公开(公告)日：2004-10-07

申请号：US10830762

申请日：2004-04-23

发明人： Takashi Kimoto ,  Tamio Saito ,  Masanaga Tokuyo ,  Satoru Chikuma ,  Takashi Nishigaya ,  Nobutsugu Fujino

IPC分类号： G01S003/02

CPC分类号： H04W4/02 ,  G01C21/26 ,  G08G1/0962 ,  H04L29/06 ,  H04L67/04 ,  H04L67/16 ,  H04L67/18 ,  H04L69/329 ,  H04M3/493 ,  H04M2207/18 ,  H04M2242/30

摘要： In a mobile communicating system, a mobile terminal has a position information detecting unit detecting position information, a position information transmitting unit transmitting position information to an information center, an up-load data transmitting unit transmitting up-load data to the information center and an information/service utilizing unit utilizing information/service from the information center. The information center has an accumulating unit accumulating information/services, a retrieving unit receiving the position information from the mobile terminal to retrieve the information/services in the accumulating unit, an accumulation controlling unit accumulating the up-load data in the accumulating unit, and an information/service transmitting unit taking out the information/service retrieved by the retrieving unit from the accumulating unit and transmitting it to the mobile terminal, thereby providing not only map information showing the current position of the mobile terminal but also information of facilities on the map to the mobile terminal.

公开(公告)号：US20040189525A1

公开(公告)日：2004-09-30

申请号：US10714673

申请日：2003-11-18

发明人： Edward R. Beadle ,  John F. Dishman ,  Richard H. Anderson ,  Paul D. Anderson ,  Gayle Patrick Martin

IPC分类号： G01S003/02

CPC分类号： G01S3/14 ,  G01S3/74 ,  G06K9/00523 ,  G06K9/624

摘要： A transmitted signal's higher order statistics of temporally dependent waveforms are exploited to geolocate low power signals. The geolocation is independent of the characteristics or encoded data of the transmitted waveform. The method uses spatial fourth order cumulants or spatial second order moments in a Blind Source Separation and generalized eigenvalue decomposition to determine unique matrix pencil eigenvalues and eigenvectors. The eigenvectors provide are orthogonal to the steering vector of the transmitted signal save one, which represents the steering vector. This property is used to determine Steering vectors, AoA or geolocation. The receiver includes a multi-element array and does not need a priori knowledge of the transmitted signal source to geolocate the target transmitter. The methods and apparatus for geolocation does not require typical demodulation.

摘要翻译： 利用时间相关波形的发射信号的高次统计量来分配低功率信号。 地理位置与传输波形的特性或编码数据无关。 该方法在盲源分离和广义特征值分解中使用空间四阶累积量或空间二阶矩，以确定唯一的矩阵笔特征值和特征向量。 特征向量提供与传送信号的导向矢量正交，代表导向矢量。 该属性用于确定转向向量，AoA或地理位置。 接收机包括多元件阵列，并且不需要传输信号源的先验知识来对目标发射机进行地理定位。 地理位置的方法和装置不需要典型的解调。

公开(公告)号：US20040164895A1

公开(公告)日：2004-08-26

申请号：US10724324

申请日：2003-11-26

发明人： Daniel Collin Jenkins ,  Timothy Ronald Jackson ,  Peter Joseph Maimone

IPC分类号： G01S003/02

CPC分类号： H04W12/02 ,  G01S5/0236 ,  G01S5/0289 ,  G01S19/05 ,  G01S19/36 ,  G01S19/48 ,  H04L45/26 ,  H04L63/0428 ,  H04W4/02 ,  H04W28/18 ,  H04W40/244 ,  H04W40/248

摘要： A network, network device and method is disclosed. In one embodiment, a method includes transmitting communication signals from a first network node to a second network node, where the first and second network nodes comprise a network and each include a receiver portion and a transponder portion. The method further comprises receiving, by the first and second network nodes, position signals from a plurality of navigation beacons, and generating transmitter codes for the transponder portions using local code generators of the receiver portions.

摘要翻译： 公开了网络，网络设备和方法。 在一个实施例中，一种方法包括将通信信号从第一网络节点传送到第二网络节点，其中第一和第二网络节点包括网络，并且每个网络节点包括接收器部分和应答器部分。 该方法还包括由第一和第二网络节点接收来自多个导航信标的位置信号，以及使用接收机部分的本地代码生成器生成应答器部分的发射机代码。

公开(公告)号：US20040160365A1

公开(公告)日：2004-08-19

申请号：US10690175

申请日：2003-10-20

发明人： Wyatt T. Riley ,  Christopher Patrick

IPC分类号： G01S003/02

CPC分类号： G01S5/0221 ,  G01S5/0278 ,  G01S19/39

摘要： Methods and apparatuses for the processing of false alarms in position determination. At least one embodiment of the present invention estimates and uses measurement false alarm probabilities in the position determination process. In one embodiment, the estimated measurement false alarm probabilities are combined to determine the reliability of the determined position solution or the reliability of the set of measurements as a collection. In one embodiment, the estimated measurement false alarm probabilities are used in the isolation and elimination of faulty measurements. For example, the traditional geometry based metric for identifying a faulty measurement is further weighted according to the measurement false alarm probabilities in order to determine the faulty measurement.

摘要翻译： 在位置确定中处理假警报的方法和装置。 本发明的至少一个实施例在位置确定处理中估计和使用测量误报概率。 在一个实施例中，组合估计的测量误报概率以确定确定的位置解的可靠性或该组测量的可靠性作为集合。 在一个实施例中，估计的测量误报概率用于隔离和消除故障测量。 例如，为了确定有故障的测量，根据测量误报概率进一步加权用于识别故障测量的传统的基于几何的度量。

公开(公告)号：US20040127228A1

公开(公告)日：2004-07-01

申请号：US10334499

申请日：2002-12-30

发明人： Heung Ryeol You ,  James J. Caffery JR. ,  Saipradeep Venkatraman ,  Saleh Al-Jazzar

IPC分类号： H04Q007/20 ,  G01S003/02

CPC分类号： H04W64/00 ,  G01S5/021 ,  G01S5/14

摘要： Provided is a method for correcting a non-line-of-sight (NLOS) error in a wireless positioning system that enhances the location accuracy of a mobile station by correcting location error caused by NLOS propagation when the mobile station is positioned in a wireless mobile communication environment, and a computer-readable recording medium for recording a program that implements the method. The method checks out the location of the MS in the above environment and provides diverse services by correcting the location error caused by NLOS propagation included in a received signal. That is, a user can enjoy a high-quality location service by receiving the location information only within the radius which user wants, such as traveler's information, vehicle tracking, location service, and location-based advertisements, because the location of the user's MS is detected precisely.

摘要翻译： 提供了一种用于校正无线定位系统中的非视距（NLOS）误差的方法，其通过在移动台位于无线移动台中时通过校正由NLOS传播引起的位置误差来增强移动台的位置精度 通信环境和用于记录实现该方法的程序的计算机可读记录介质。 该方法在上述环境中检查MS的位置，并通过校正由接收到的信号中包括的NLOS传播引起的位置误差来提供不同的服务。 也就是说，用户可以通过仅在用户想要的半径内接收位置信息，例如旅行者信息，车辆跟踪，位置服务和基于位置的广告来享受高质量的定位服务，因为用户的MS 被精确检测。

公开(公告)号：US20040119641A1

公开(公告)日：2004-06-24

申请号：US10732876

申请日：2003-12-10

发明人： Juha Heikki Antero Rapeli

IPC分类号： G01S003/02

CPC分类号： H04W64/00 ,  G01S7/02 ,  G01S7/292 ,  G01S13/74

摘要： The invention relates to a location method based on distance measurements. In such methods the distance between a mobile station and a base station is measured by finding the one-way propagation time between the two radio stations. This one-way propagation time is obtained by sending a location signal and measuring the time of arrival of said location signal. The problem is that the signals which are detected at the receiving station and which are used for such measurements often correspond to reflected radio paths which are longer than direct radio paths. This results in an inaccurate position. The invention proposes a method to ensure that the distance calculation will be done by using the first time of arrival of the location signal, said first time of arrival corresponding to a propagation through the shortest radio path which is likely to be the direct path. This is achieved by using a location signal which includes a plurality of identical messages, and by combining said messages on reception in order to obtain a signal of higher energy of which the shortest path is detected.

摘要翻译： 本发明涉及一种基于距离测量的定位方法。 在这种方法中，通过找到两个无线电台之间的单向传播时间来测量移动台和基站之间的距离。 通过发送位置信号并测量所述位置信号的到达时间来获得该单向传播时间。 问题在于，在接收站处检测到并用于这种测量的信号通常对应于比直接无线电路径长的反射无线电路径。 这导致不准确的位置。 本发明提出一种确保通过使用位置信号到达的第一次来完成距离计算的方法，所述第一时间到达对应于可能是直接路径的最短无线电路径的传播。 这是通过使用包括多个相同消息的位置信号，并且通过在接收时组合所述消息以获得检测到最短路径的较高能量的信号来实现的。

公开(公告)号：US20040095276A1

公开(公告)日：2004-05-20

申请号：US10295935

申请日：2002-11-15

发明人： John Krumm ,  Gregory Smith

IPC分类号： G01S003/02

CPC分类号： G01S5/0252

摘要： A process for measuring the location of people and objects carrying radio frequency (RF) transmitters (TXs) that transmit messages to a plurality of RF receivers (RXs) located in a space. Each RX is in communication with a computer of a computer network and forwards data received from the TXs to the network via its associated computer, along with a value indicating the signal strength of the received TX transmission. The signal strengths attributable to the same transmission are used to form a locating signal strength vector which is then compared to exemplary vectors generated from signal strength readings gathered in a calibration procedure from a set of representative locations in the space. In comparing the locating vector to the exemplary vectors, constraints are enforced on movements between locations (e.g., cannot pass through walls) and to probabilistically enforce expectations on transitions between locations.

摘要翻译： 用于测量携带射频（RF）发射机（TX）的人员和物体的位置的过程，其将消息发送到位于空间中的多个RF接收机（RX）。 每个RX与计算机网络的计算机通信，并且经由其相关联的计算机将从TX发送的数据转发到网络，以及指示接收的TX传输的信号强度的值。 归因于相同传输的信号强度用于形成定位信号强度向量，然后将其与从空间中的一组代表性位置收集的在校准过程中收集的信号强度读数产生的示例性矢量进行比较。 在将定位向量与示例性向量进行比较时，在位置之间的移动（例如，不能通过壁）上执行约束，并概率地强制对位置之间的转变的期望。

公开(公告)号：US20040066327A1

公开(公告)日：2004-04-08

申请号：US10468377

申请日：2003-08-19

发明人： Neil A Salmon

IPC分类号： G01S003/02

CPC分类号： G01K15/00 ,  G01K11/006

摘要： Radiometers detect radio wavelenth electromagnetic radiation and typically have an antenna (16), an amplifier (18) and a detector (20). All three of these components have response characteristics that ma be dependent on temperature, and in the case of systems using radiometer arrays dependent upon temperatures throughout the system. Different temperatures across a multi-channel antenna and differential channel temperature response can result in poor image quality from imaging radiometers. Resolution of a linear array of detector horns is limited by the size of the horns. An imaging radiometer (10) uses a focussing polariser (36), a quarter wave plate (32), a rotating inclined disk (28), and a detector feed array (16) to perform a conical scan, and compensates for variations in operating temperature of a radiometer using one or more of a variety of techniques including calibrating channels relative to each other, calibrating channels using reference temperatures in situo, and calibrating channels using temperature response predictions stored in the radiometer signal processor (22). Aspects of the invention also optimise image resolution, image quality and allow calibration.

摘要翻译： 辐射计检测无线电波长电磁辐射，并且通常具有天线（16），放大器（18）和检测器（20）。 这些组件中的所有三个具有取决于温度的响应特性，并且在使用依赖于整个系统中的温度的辐射计阵列的系统的情况下。 多通道天线的不同温度和差分通道温度响应可能会导致成像辐射计的图像质量差。 检测器喇叭的线性阵列的分辨率受喇叭尺寸的限制。 成像辐射计（10）使用聚焦偏振器（36），四分之一波片（32），旋转倾斜盘（28）和检测器馈送阵列（16）来执行圆锥扫描，并且补偿操作中的变化 使用一种或多种各种技术的温度，包括相对于彼此校准通道，使用原位参考温度来校准通道，以及使用存储在辐射计信号处理器（22）中的温度响应预测校准通道。 本发明的方面还优化图像分辨率，图像质量并允许校准。

公开(公告)号：US20040021603A1

公开(公告)日：2004-02-05

申请号：US10391161

申请日：2003-03-17

申请人： INTEGRINAUTICS CORPORATION, a California corporation

发明人： Kurt R. Zimmerman ,  Clark E. Cohen ,  David G. Lawrence ,  Walter C. Melton ,  Henry Stewart Cobb ,  Paul Yalden Montgomery

IPC分类号： G01S003/02

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。

公开(公告)号：US20040017313A1

公开(公告)日：2004-01-29

申请号：US10386586

申请日：2003-03-11

发明人： Alberto Menache

IPC分类号： G01S003/02

CPC分类号： G01S5/021 ,  G01S5/06 ,  G01S5/14

摘要： A method for tracking objects within a three-dimensional capture zone includes placing at least four sensors around the capture zone. A stationery reference tag is placed within the capture zone. Tags are coupled to objects to be tracked in the capture zone. Signals are periodically transmitted from the reference and object tags. These signals are received and the identification code, and code phase and carrier phase measurements are extracted. The code phrase and carrier phase measurements are processed to determine the position of each object tag with respect to the reference tag at each sampling instant.