公开(公告)号：US07679998B1

公开(公告)日：2010-03-16

申请号：US12215647

申请日：2008-06-27

Applicant: Charles A. Uzes

Inventor： Charles A. Uzes

IPC: G01S15/00

CPC classification number: H04B11/00 ,  G01S3/04 ,  G01S3/46 ,  G01S3/808 ,  G01S5/0205 ,  G01V1/001

Abstract: A system applicable to acoustic, seismic, electromagnetic, hydrodynamic, and shock waves utilizing a map between signal time series and signal vectors defining the mathematical wave field model characterizing the signal's wave field. This map is developed from wave models relating field values to those on surfaces and corresponding uniqueness theorems. The system should allow for improved resolving power in bearing and elevation for discrimination of sources; detection and direction finding for signals below the average background level; detection based upon resolving power and signal vector characteristics rather than signal to noise ratio; reconstruction of signals of resolved sources for their transmitted information content; and multiple modes of operation. Adaptive incorporation of known undesired signals into the noise background and/or treatment of asymmetric background noise fields is permitted through use of a noise metric-based map yielding signal direction in the presence of diffraction effects.

Abstract translation: 一种适用于声学，地震，电磁，流体动力学和冲击波的系统，利用信号时间序列和定义表征信号波场的数学波场模型的信号矢量之间的映射。 这个地图是从与场地值相关的波浪模型和相应的唯一性定理相结合的。 该系统应允许提高轴承和升降机的分辨力，以便辨别源头; 低于平均背景水平的信号的检测和方向检测; 基于分辨率和信号矢量特征而不是信噪比的检测; 对其传送的信息内容重建信号源; 和多种操作模式。 通过在存在衍射效应的情况下通过使用基于噪声度量的地图产生信号方向来允许将已知不需要的信号自适应地并入噪声背景和/或非对称背景噪声场的处理。

公开(公告)号：US20090219211A1

公开(公告)日：2009-09-03

申请号：US11579282

申请日：2005-09-21

Applicant: Steven F. Kimball

Inventor： Steven F. Kimball

IPC: G01S3/04

CPC classification number: G01S3/14 ,  G01S3/04

Abstract: At least two receiver sets are provided. A data processor is in communication with the receiver sets, wherein the data processor tags position data and radio frequency emission data from the receiver sets. A data storage unit is in communication with the data processor and is at least capable of storing tagged data. A processing unit is capable of processing the tagged data. The processing unit defines a search grid within which to search for the source of the radio frequency emission. The processing unit motion compensates the tagged data separately for each point on the grid. The processing unit assigns a value to each grid point based on a phase coherence of the motion compensated data. The processing unit determines a location within the grid having a highest assigned value, thereby determining the source of the radio frequency emission.

Abstract translation: 提供至少两个接收机组。 数据处理器与接收机组通信，其中数据处理器标签定位来自接收机组的数据和射频发射数据。 数据存储单元与数据处理器通信，并且至少能够存储标记的数据。 处理单元能够处理标记的数据。 处理单元定义搜索网格，在其中搜索射频源的来源。 处理单元运动为网格上的每个点分别补偿标记的数据。 处理单元基于运动补偿数据的相位相干性为每个网格点分配一个值。 处理单元确定具有最高分配值的网格内的位置，从而确定射频发射的来源。

公开(公告)号：US20020196185A1

公开(公告)日：2002-12-26

申请号：US10004251

申请日：2001-11-01

Inventor： Graham P. Bloy

IPC: G01S005/04

CPC classification number: G01S3/04 ,  G01S3/06 ,  G01S3/12 ,  G01S3/66 ,  H01Q3/24 ,  H01Q3/2605 ,  H01Q11/10 ,  H01Q21/062

Abstract: Active high density multi-element antennanull system nullDSnull for radiolocation of RF target radiation has a processor-controlled antenna array nullCAAnull having rings nullR1, R2, R3null concentric about a central axis to define arcuate sectors Sn about the central axis, each ring having adjacent p.c. boards nullPC1, PC2, PC3null with PIN diode-switched antenna elements within sectors. The rings provide three rings nullE1, E2, E3null of discrete dipolar elements, defining electrically isolated antenna units nullASmnull, each radial to the central axis, of quasi-log-periodic configuration. Antenna units are switched in rotational sequence about the central axis to provide narrow beam signal selectivity, directionally rotatable about the central axis. An array control system nullACSnull is operated, as under microprocessor control null34null, by a host system nullHSnull to cause RF scanning. PIN diode switching is used on printed circuit boards within the array. Amplitude and phase comparison modes are used.

Abstract translation: 用于RF目标辐射的无源定位的有源高密度多元素天线系统[DS]具有处理器控制的天线阵列[CAA]，具有围绕中心轴同心的环[R1，R2，R3]，以围绕中心 轴，每个环具有相邻的pc 具有PIN二极管开关天线元件的板[PC1，PC2，PC3]。 环提供离散偶极子元件的三个环[E1，E2，E3]，每个径向为中心轴的电隔离天线单元[ASm]具有准对数周期性配置。 天线单元围绕中心轴以旋转顺序切换以提供窄波束信号选择性，可绕中心轴定向旋转。 阵列控制系统[ACS]由微处理器控制[34]由主机系统[HS]进行操作，以进行RF扫描。 PIN二极管开关用于阵列内的印刷电路板。 使用幅度和相位比较模式。

公开(公告)号：US06437737B1

公开(公告)日：2002-08-20

申请号：US09491367

申请日：2000-01-26

Applicant: Teodoro Azzarelli ,  Paul Kwon

Inventor： Teodoro Azzarelli ,  Paul Kwon

IPC: H01Q300

CPC classification number: G01S3/40 ,  G01S3/04 ,  H01Q3/26 ,  H01Q21/062 ,  H03M7/30

Abstract: Data compression method, system, and program code for compressing antenna pattern data generated by measuring the complex voltage derived from the interaction of a RF waveform and a sensing element are disclosed. The antenna pattern data are modeled with a plurality of infinitesimal antenna elements, each element defined in terms of a distinct position, orientation, and polarization. An analytical expression for the interaction between the plurality of infinitesimal antenna elements and an impinging waveform yields a plurality of expressions for a theoretical voltage. The plurality of infinitesimal antenna elements constitute a mathematical basis set from which a weighted linear combination is constructed. The value of the weights are determined by equating the complex voltage representing the antenna pattern data with the theoretical voltage representing the plurality of weighted infinitesimal antenna elements. In turn, the weights comprise an encoded representation of the antenna pattern data from which the antenna pattern data may be reconstructed or decompressed.

Abstract translation: 公开了用于压缩通过测量从RF波形和感测元件的相互作用导出的复合电压而产生的天线方向图数据的数据压缩方法，系统和程序代码。 天线图案数据用多个无限小天线元素建模，每个元件根据不同的位置，取向和偏振来定义。 用于多个无穷小天线元件和入射波形之间的相互作用的解析表达式产生用于理论电压的多个表达式。 多个无穷小天线元素构成了从其构建加权线性组合的数学基础集合。 通过将表示天线方向图数据的复数电压与表示多个加权的无穷小天线元件的理论电压进行等价来确定权重的值。 反过来，权重包括天线图案数据的编码表示，天线图案数据可以从天线图形数据重构或解压缩。

公开(公告)号：US20020080103A1

公开(公告)日：2002-06-27

申请号：US09996713

申请日：2001-11-30

Applicant: LG ELECTRONICS INC.

Inventor： Cha-Bong Choi

IPC: G09G003/36

CPC classification number: H04N7/18 ,  G01S3/04

Abstract: An apparatus and method for displaying image data direction of a terminal displays direction information in case of displaying an object photographed through a camera installed in a terminal thus to maximize efficiency value of image information and utilize a multiplexing format including direction in an image as a basis data format. To achieve the purpose of the present invention, there is provided an apparatus for displaying image data direction of a terminal in accordance with the present invention comprising a direction sensor for detecting direction of a photographing object in a conventional terminal and a direction displaying apparatus for encoding and packetizing the converted digital direction signal. There is also provided a method for displaying image data direction of a terminal in accordance with the present invention comprising the steps of receiving an image frame from a base station, demultiplexing the received image frame in a multiplexing processing unit and separating the frame into voice, image and direction data and displaying the separated direction and image data on an LCD according to control of the direction displaying processing unit.

Abstract translation: 用于显示终端的图像数据方向的装置和方法在通过安装在终端中的照相机拍摄的对象的显示的情况下显示方向信息，从而使图像信息的效率值最大化并且利用包括图像中的方向的复用格式作为基础 数据格式。 为了实现本发明的目的，提供了一种根据本发明的用于显示终端的图像数据方向的装置，包括用于检测传统终端中的拍摄对象的方向的方向传感器和用于编码的方向显示装置 并将转换后的数字方向信号打包。 还提供了一种用于显示根据本发明的终端的图像数据方向的方法，包括以下步骤：从基站接收图像帧，在多路复用处理单元中对接收到的图像帧进行解复用，并将帧分离成语音， 图像和方向数据，并且根据方向显示处理单元的控制在LCD上显示分离的方向和图像数据。

公开(公告)号：US06104346A

公开(公告)日：2000-08-15

申请号：US226422

申请日：1999-01-06

Applicant: Ronald M. Rudish ,  Edward Magill

Inventor： Ronald M. Rudish ,  Edward Magill

IPC: G01S3/04 ,  G01S3/46 ,  H01Q21/20 ,  G01S5/02

CPC classification number: H01Q21/20 ,  G01S3/04 ,  G01S3/46

Abstract: An antenna and system for determining two-dimensional angle-of-arrival includes circular array interferometers for azimuth, linear interferometers for elevation, and a mast for positioning the interferometers in a vertically stacked orientation. The circular array interferometers exhibit azimuth constant-phase-difference contours orthogonal to elevation constant-phase-difference contours exhibited by the linear interferometers. An antenna and system for determining azimuth of input signals includes ambiguous and non-ambiguous circular array interferometers. The non-ambiguous circular array interferometer resolves ambiguities introduced by the ambiguous circular array interferometer, the at least one ambiguous circular array interferometer operatively coupled to a low-order Butler matrix and power divider/combiner such that a high order Butler matrix is not required to generate omnidirectional phase modes from the ambiguous circular array interferometer. A method for determining phase differences indicative of two-dimensional angle-of-arrival includes determining a first phase difference indicating azimuth using circular array interferometers, determining a second phase difference indicating elevation using linear interferometers, and orienting the interferometers in a vertically stacked orientation such that the azimuth constant-phase-difference contours are orthogonal to the elevation constant-phase-difference contours. A method for determining phase difference representative of azimuth includes determining a phase difference indicative of azimuth using ambiguous circular array interferometer and non-ambiguous circular array interferometers, and resolving ambiguities in azimuth introduced by the ambiguous circular array interferometer using the non-ambiguous circular array interferometer, the at least one ambiguous circular array interferometer operatively coupled to a low-order Butler matrix and power divider/combiner such that a high order Butler matrix is not required to generate omnidirectional phase modes from the ambiguous circular array interferometer. A method for determination of polarization of input signals with only one added element.

公开(公告)号：US5053784A

公开(公告)日：1991-10-01

申请号：US536015

申请日：1990-06-07

Applicant: Lassi Hippelainen

Inventor： Lassi Hippelainen

IPC: G01S3/04 ,  G01S3/40 ,  G01S3/42 ,  H01Q3/08

CPC classification number: G01S3/42 ,  G01S3/04 ,  G01S3/40 ,  H01Q3/08

Abstract: The present invention concerns an apparatus and method for measuring the azimuth and elevation of an object. The apparatus includes a platform; a base plate arranged to the construction of the platform rotatably in a plane, which is essentially horizontal; a sensor frame attached to the base plate; at least three sensor elements attached to the sensor frame; and an electronics unit for the control of the sensor elements, capable of performing the processing of signals received by the sensors. The sensor frame is rigidly attached to the base plate and the directional pattern of the sensor elements is such as to cover the entire angle span of interest in the elevation plane, while the pattern covers an essentially narrower angle in the azimuth plane. The direction finder does not easily lose the tracked object performing movements particularly in the elevation plane.

Abstract translation: 本发明涉及用于测量物体的方位和仰角的装置和方法。 该装置包括一个平台; 基板，其布置成在基本上水平的平面中可旋转地构造平台; 安装在基板上的传感器框架; 至少三个传感器元件附接到传感器框架; 以及用于控制传感器元件的电子单元，其能够执行由传感器接收的信号的处理。 传感器框架刚性地附接到基板，并且传感器元件的方向图案可以覆盖仰角平面中感兴趣的整个角度跨度，而图案在方位平面中覆盖基本上较窄的角度。 方向探测器不容易失去跟踪对象，特别是在仰角平面上进行运动。

公开(公告)号：US3992666A

公开(公告)日：1976-11-16

申请号：US544464

申请日：1975-01-27

Applicant: James H. Edwards ,  Robert M. Mason

Inventor： James H. Edwards ,  Robert M. Mason

IPC: G01H3/08 ,  G01R29/08 ,  G01S3/04 ,  G01R23/16

CPC classification number: G01H3/08 ,  G01R29/0892 ,  G01S3/04

Abstract: Frequency and other characteristics of energy contained in a region of thelectromagnetic or acoustic spectrum under examination is determined by subdividing the region, examining each subdivision for energy content, and then further subdividing and examining those subdivisions exceeding a threshold energy. This process is continued until the bandwidth of the last subdivision is equal to the desired frequency resolution.

Abstract translation: 通过对该区域进行细分，检查每个细分以获取能量含量，然后进一步细分和检查超过阈值能量的细分来确定检测中的电磁或声谱的区域中包含的能量的频率和其它特性。 该过程一直持续到最后细分的带宽等于所需的频率分辨率。

公开(公告)号：US20180337739A1

公开(公告)日：2018-11-22

申请号：US15531650

申请日：2017-05-10

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Sven PETERSSON ,  Fredrik ATHLEY ,  Andreas NILSSON

IPC: H04B17/27 ,  H01Q3/26 ,  H04L5/00 ,  H04W72/04

CPC classification number: H04B17/27 ,  G01S3/04 ,  G01S3/16 ,  G01S3/48 ,  H01Q3/267 ,  H04B7/0617 ,  H04B7/0848 ,  H04B7/086 ,  H04L5/0023 ,  H04L5/0053 ,  H04W72/0446 ,  H04W72/048

Abstract: There is provided mechanisms for estimating angle of arrival of a radio signal in a radio communications network. A method is performed by a radio transceiver device. The radio transceiver device comprises an antenna array that, by means of analog beamforming, is configured to shift between at least two phase center locations. The method comprises obtaining measurements of the radio signal as received by the antenna array using two mutually different phase center locations. The method comprises estimating the angle of arrival of the radio signal using the measurements as obtained using the two mutually different phase center locations.

公开(公告)号：US09995817B1

公开(公告)日：2018-06-12

申请号：US14692192

申请日：2015-04-21

Applicant: Lockheed Martin Corporation

Inventor： David M. Mittiga

IPC: G01B21/22 ,  G01S5/02 ,  G01S3/04

CPC classification number: G01S5/0294 ,  G01B21/22 ,  G01S3/04 ,  G01S5/0018 ,  G01S5/16

Abstract: A tracking computer system may track a target using a single linear array. The system may receive first sensor measurements and one or more additional sensor measurements from the linear array. The system may determine whether a location of the target can be identified based on a cone intersection algorithm. When the target location can be identified based on the cone intersection algorithm, the first and the one or more additional sensor measurements may be applied to the cone intersection algorithm to identify the target location. When target location cannot be identified based on the cone intersection algorithm, the first and the one or more additional sensor measurements may be applied to an angular motion model to determine a best fit arc path corresponding to the target. A true target angle estimate and a target angular velocity may be determined based on the determined best fit arc path.