专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06836243B2 System and method for processing a signal being emitted from a target signal source into a noisy environment 有权
公开(公告)号：US06836243B2
公开(公告)日：2004-12-28
申请号：US10363331
申请日：2003-07-10
申请人： Matti Kajala , Matti Hāmäläinen
发明人： Matti Kajala , Matti Hāmäläinen
IPC分类号： H01Q326
CPC分类号： H04B7/086 , G01S3/043 , G01S3/802 , H03H21/0012
摘要： The invention relates to a system and method for processing a signal being emitted from a target signal source 20 into a noisy environment, wherein said target signal source 20 is located in a target signal source direction &phgr;s with regard to the position of a transducer array 10, the method comprising the following steps: receiving, transforming and filtering said signal according to filter coefficients of a beamformer 30I, 30II in order to generate at least one beamformer output signal y′i(n), i=1 . . . N, the filter coefficients defining a desired predetermined filter characteristic of the beamformer; and generating a control signal t(n) representing said target signal source direction &phgr;s. It is the object of the invention to improve such a system and method in the way that clear signal reception is achieved for any target signal source direction &phgr;s with only a minimum of computational effort and memory capacity. That object is achieved by providing adjustable filter coefficients which are generated in response to said control signal t(n) such that the beamformer 30I, 30II has a predetermined filtering characteristic for said target signal source 20 at said target signal source direction &phgr;s.

2. 发明授权

US06831600B1 Intermodulation suppression for transmit active phased array multibeam antennas with shaped beams 有权
标题翻译：具有成形梁的发射有源相控阵多波束天线的互调抑制
公开(公告)号：US06831600B1
公开(公告)日：2004-12-14
申请号：US10806776
申请日：2004-03-23
申请人： Alan Cherrette , Erik Lier , Bryan Cleaveland
发明人： Alan Cherrette , Erik Lier , Bryan Cleaveland
IPC分类号： H01Q326
CPC分类号： H01Q3/26 , H01Q25/00
摘要： Methods and apparatus are provided for determining aperture phase distributions for use in radiating signals with an active phased array antenna having multiple beams and multiple carriers. Distinct initial phase distributions corresponding to the carriers are allocated. The initial phase distributions are modified for each of the carriers to generate respective radiation patterns that substantially correspond to respective coverage areas in accordance with amplification and radiation of signals having the initial phase distributions. The modified phase distributions are optimized to simultaneously increase carrier-signal power and reduce an intermodulation product radiated in the respective coverage areas in accordance with amplification and radiation of signals having the modified phase distributions.
摘要翻译：提供了用于确定用于具有多个波束和多载波的有源相控阵天线辐射信号的孔径相位分布的方法和装置。分配对应于载波的不同的初始相位分布。根据具有初始相位分布的信号的放大和辐射，为每个载波修改初始相位分布以产生基本对应于相应覆盖区域的相应辐射图。经修改的相位分布被优化以根据具有修改的相位分布的信号的放大和辐射来同时增加载波信号功率并减少在各个覆盖区域中辐射的互调乘积。

3. 发明授权

US06798380B2 Robust capon beamforming 失效
标题翻译：坚固的卡波束成形
公开(公告)号：US06798380B2
公开(公告)日：2004-09-28
申请号：US10358597
申请日：2003-02-05
申请人： Jian Li , Petre Stoica , Zhisong Wang
发明人： Jian Li , Petre Stoica , Zhisong Wang
IPC分类号： H01Q326
CPC分类号： G01S15/8915 , G10K11/346 , H01Q3/24 , H01Q3/30
摘要： A method for enhanced Capon beamforming, referred to herein as an advanced robust Capon beamformer (advanced RCB), includes the steps of providing a sensor array including a plurality of sensor elements, wherein an array steering vector corresponding to a signal of interest (SOI) is unknown. The array steering vector is represented by an ellipsoidal uncertainty set. A covariance fitting relation for the array steering vector is bounded with the uncertainty ellipsoid. The matrix fitting relation is solved to provide an estimate of the array steering vector.
摘要翻译：一种用于增强的Capon波束成形的方法，这里称为高级鲁棒Capon波束形成器（高级RCB），包括提供包括多个传感器元件的传感器阵列的步骤，其中对应于感兴趣信号（SOI）的阵列导向矢量是未知数阵列导向矢量由椭球不确定度集合表示。阵列导向矢量的协方差拟合关系与不确定椭球相关。求解矩阵拟合关系以提供阵列导向矢量的估计。

4. 发明授权

US06771218B1 Electronically agile multi-beam antenna 失效
标题翻译：电子敏捷多波束天线
公开(公告)号：US06771218B1
公开(公告)日：2004-08-03
申请号：US08392312
申请日：1995-02-13
申请人： Farzin Lalezari , Theresa Cronin Boone
发明人： Farzin Lalezari , Theresa Cronin Boone
IPC分类号： H01Q326
CPC分类号： H01Q1/28 , G01S13/48 , H01Q3/24 , H01Q21/205 , H01Q25/02
摘要： The present invention provides an antenna system including a body for use in determining N unknown parameters values relating to an object located in the vicinity of the system. The system further includes an antenna array comprised of a plurality of elements that are spaced to reduce ambiguities in the subsequently determined N values. In one embodiment, several pair of elements are used. The spacing between the elements comprise the pairs and the spacing between pairs reduces ambiguities. The antenna system also includes a beamformer for producing a plurality of beams and a device for using the plurality of beams to determine N values associated with the object. The amplitude of the plurality of beams can be compared to obtain coarse data on the object. The phases of the plurality of spatially independent but overlapping beams are compared to realize an interferometer that can provide coarse resolution data and/or fine resolution data on the position and/or polarization of an object relative to the antenna system. The amplitudes of the beams can also be compared to obtain coarse data on the position and/or polarization of the object. The beamformer includes a switching network for selecting which elements of the antenna array form the subsets. This permits, for example, the position of the beams to be moved and the baseline of the beams to be varied.
摘要翻译：本发明提供一种天线系统，其包括用于确定与位于系统附近的物体相关的N个未知参数值的主体。该系统还包括由多个元件组成的天线阵列，所述多个元件间隔开以减少后续确定的N值中的模糊度。在一个实施例中，使用几对元件。元件之间的间隔包括成对，并且对之间的间隔减少了歧义。天线系统还包括用于产生多个波束的波束形成器和用于使用多个波束来确定与该对象相关联的N个值的设备。可以比较多个光束的幅度以获得对象上的粗略数据。比较多个空间上独立但重叠的波束的相位，以实现干涉仪，该干涉仪能够提供关于对象相对于天线系统的位置和/或极化的粗分辨率数据和/或精细分辨率数据。也可以比较光束的振幅，以获得物体的位置和/或极化上的粗略数据。波束形成器包括用于选择天线阵列的哪些元件形成子集的交换网络。这允许例如要移动的梁的位置和要改变的梁的基线。

5. 发明授权

US06636177B1 Volumetric phased array antenna system 失效
标题翻译：体积相控阵天线系统
公开(公告)号：US06636177B1
公开(公告)日：2003-10-21
申请号：US09914715
申请日：2002-02-04
申请人： John Arthur Scholz
发明人： John Arthur Scholz
IPC分类号： H01Q326
CPC分类号： H01Q3/2611 , H01Q3/2629 , H01Q3/2635 , H01Q21/065 , H01Q21/20 , H01Q21/205 , H01Q21/22
摘要： A volumetric phased array antenna system comprising a number of antenna elements, each of which is connected to a T/R (transmitter/receiver) module, being under the control of a beam steering computer (BSC), to which T/R module a transmitting signal is fed for forming a transmitting beam, via which T/R modules RF signals are received and via a radar receiver are fed to a signal processing unit connected thereto. The antenna elements are arranged in mutually spaced conformal curved virtual surfaces having the same center of curvature or the same centers of curvature, with each combination of antenna elements in one or more surfaces together forming a volumetric phased array antenna or a part thereof.
摘要翻译：一种体积相控阵天线系统，包括多个天线元件，每个天线元件连接到在波束导向计算机（BSC）的控制下的T / R（发射机/接收机）模块，T / R模块a 馈送发送信号以形成发送波束，通过该发送波束接收T / R模块RF信号，经雷达接收机馈送到与之相连的信号处理单元。天线元件布置在具有相同的曲率中心或相同的曲率中心的相互间隔的共形弯曲虚拟表面中，一个或多个表面中的天线元件的每个组合一起形成体积相控阵天线或其一部分。

6. 发明授权

US06600446B2 Cascadable architecture for digital beamformer 有权
标题翻译：数字波束形成器的级联架构
公开(公告)号：US06600446B2
公开(公告)日：2003-07-29
申请号：US10085210
申请日：2002-02-27
申请人： Thomas A. Moch
发明人： Thomas A. Moch
IPC分类号： H01Q326
CPC分类号： H01Q3/2611 , H01Q3/26
摘要： A cascadable beamformer with the capability to cooperate with one or more cascadable beamformers to build a customized beamforming apparatus. The architecture supports a cascadable beamformer with a covariance estimate logic that supports cascading multiple devices together to support different numbers of input channels, a weighted sum logic that supports cascading multiple devices together to support different numbers of input channels, and a weighted sum logic that supports cascading multiple devices together to support different numbers of output beams.
摘要翻译：一种级联波束形成器，具有与一个或多个可级联波束形成器协作以构建定制的波束形成装置的能力。该架构支持具有协方差估计逻辑的可级联波束形成器，其支持将多个设备级联在一起以支持不同数量的输入通道，支持将多个设备级联在一起以支持不同数量的输入通道的加权和逻辑，以及支持将多个设备级联在一起以支持不同数量的输出光束。

7. 发明授权

US06452988B1 Adaptive sensor array apparatus 有权
标题翻译：自适应传感器阵列装置
公开(公告)号：US06452988B1
公开(公告)日：2002-09-17
申请号：US09344444
申请日：1999-06-29
申请人： Stephen D. Hayward
发明人： Stephen D. Hayward
IPC分类号： H01Q326
CPC分类号： H01Q3/2605
摘要： The invention provides an adaptive sensor array apparatus (100) incorporating a multielement antenna (12) for receiving radiation from a scene (‘S’) and generating signals (e) in response thereto and a processing unit (114) for processing the signals (e) to provide an output signal (y). The unit (114) comprises an adaptive weight computer (136) arranged to generate weighting vectors (w) which are used in the unit (114) to attenuate contributions to the output signal (y) arising from sources of jamming radiation in the scene and transmit contributions to the output signal (y) arising from wanted targets therein. The apparatus (100) incorporates a non-adaptive beamformer unit (132) for preconditioning the signals (e) before they are passed to the computer (136). Preconditioning the signals (e) enhances performance of the apparatus (100) relative to conventional adaptive sensor array apparatus (10).
摘要翻译：本发明提供了一种自适应传感器阵列装置（100），其包括用于从场景（S）接收辐射并响应于此产生信号（e）的多元素天线（12）和用于处理信号的处理单元（114）单元（114）包括自适应加权计算机（136），其被配置为产生在单元（114）中使用的加权向量（w），以衰减对输出信号（y ）从场景中的干扰辐射源产生的信号（e），并且向由其中的有用目标产生的输出信号（y）发送贡献。装置（100）包括非自适应波束形成单元（132），用于在信号（e）之前预处理信号（e）的预处理相对于传统的自适应传感器阵列装置（10）增强了装置（100）的性能。

8. 发明授权

US06218987B1 Radio antenna system 失效
标题翻译：无线电天线系统
公开(公告)号：US06218987B1
公开(公告)日：2001-04-17
申请号：US09073267
申请日：1998-05-06
申请人： Sven Anders Gösta Derneryd , Sven Oscar Petersson
发明人： Sven Anders Gösta Derneryd , Sven Oscar Petersson
IPC分类号： H01Q326
CPC分类号： H01Q3/40 , H01Q1/246 , H01Q25/002 , H01Q25/04
摘要： The invention relates to an apparatus and a method for simultaneously generating, with the same radio antenna apparatus (10), a number of narrow beams and a wide beam, covering substantially the same area covered by the individual pointed beams together. The radio antenna apparatus (10) comprises an antenna array (3) a Butler matrix (2) connected to the antenna array and a set of amplifying modules (1a, . . . 1h). The activation of each of the inputs (L1, . . . , L8) of the radio antenna apparatus corresponds to a radiation pattern characterized by a narrow beam with a high antenna gain from the antenna array (3). By simultaneously activating the beam ports with the same signal with suitable phase relationships a superimposition of the radiation patterns to which the activated beam port corresponds is achieved in such a way that a wide beam is generated. Since all amplifying modules (1a, . . . , 1h) are used simultaneously, the lower antenna gain of the wide beam will be compensated by a corresponding higher amplification. The wide beam will therefore have substantially the same range as the narrow beams.
摘要翻译：本发明涉及一种利用相同的无线电天线装置（10）同时产生多个窄波束和宽波束的装置和方法，该窄波束和宽波束覆盖由各个尖波束覆盖的基本相同的区域。无线电天线装置（10）包括天线阵列（3）连接到天线阵列的巴特勒矩阵（2）和一组放大模块（1a，...，1h）。无线电天线设备的每个输入（L1，...，L8）的激活对应于由天线阵列（3）具有高天线增益的窄波束表征的辐射图。通过以适当的相位关系同时激活具有相同信号的波束端口，实现激活的波束端口对应的辐射图案的叠加，使得产生宽波束。由于同时使用所有放大模块（1a，...，1h），所以宽波束的较低天线增益将通过相应较高的放大来补偿。因此，宽光束将具有与窄光束基本相同的范围。

9. 发明授权

US06184827B2 Low cost beam steering planar array antenna 有权
标题翻译：低成本光束转向平面阵列天线
公开(公告)号：US06184827B2
公开(公告)日：2001-02-06
申请号：US09258231
申请日：1999-02-26
申请人： Deborah Sue Dendy , David Warren Corman , Stephen Chih-hung Ma , Archer David Munger , Keith Vaclav Warble
发明人： Deborah Sue Dendy , David Warren Corman , Stephen Chih-hung Ma , Archer David Munger , Keith Vaclav Warble
IPC分类号： H01Q326
CPC分类号： H01Q3/26 , H01Q3/36
摘要： A planar array antenna for use with an earth-based subscriber unit generates receive or transmit communications beams through the use of digital beamforming networks (210, 211) which provide beam steering in a first dimension. In another dimension, the communications beams are synthesized by way of a waveguide structure (300, FIG. 3) which is repeated for each row of the antenna array. The waveguide outputs are weighted due to the positioning of coupling slots (350) or coupling probes (450) which transfer carrier signals to and from each waveguide. The slots or coupling probes from the waveguides are coupled to a group of barium strontium titanate (BST) (360, FIG. 3) or micro-electromechanical systems (MEMS) switch (460, FIG. 4) phase shift elements which are under the control of a control network (221, 222, FIG. 2). The resulting signals are radiated by the antenna elements of the planar antenna array (310, FIG. 3) to form a communications beam.
摘要翻译：用于与基于地面的用户单元一起使用的平面阵列天线通过使用在第一维度中提供波束转向的数字波束成形网络（210,211）产生接收或发射通信波束。在另一维度上，通过对天线阵列的每一行重复的波导结构（图3中的300）来合成通信波束。由于耦合槽（350）或耦合探针（450）的定位，波导输出被加权，其将载波信号传送到每个波导和从每个波导传送载波信号。来自波导的槽或耦合探针耦合到一组钛酸钡锶（BST）（360，图3）或微机电系统（MEMS）开关（460），图4中的相移元件控制网络（221,222，图2）的控制。所得到的信号由平面天线阵列（图3的310）的天线元件辐射以形成通信波束。

10. 发明授权

US06828934B2 Wavelength division multiplexing methods and apparatus for constructing photonic beamforming networks 失效
标题翻译：用于构建光子束成形网络的波分复用方法和装置
公开(公告)号：US06828934B2
公开(公告)日：2004-12-07
申请号：US10196444
申请日：2002-07-15
申请人： Ronald Regis Stephens
发明人： Ronald Regis Stephens
IPC分类号： H01Q326
CPC分类号： H04J14/02 , H01Q3/2676
摘要： Methods and apparatus for constructing phased array antenna beamforming networks are provided, that allow to scan multiple beams and select appropriate sets of delay lines simultaneously. The beamforming networks disclosed herein generate less losses than conventional ones and in some cases, do not require active switching, making them completely passive. Three main methods are comprised in the invention: (1) laser wavelength hierarchies, (2) arrangements of Wavelengths Division Multiplexing (WDM) components, (3) re-use of laser wavelengths. Multiple laser wavelengths are arranged in groups and subgroups (wavelength hierarchies) in the wavelength domain. By switching between these wavelength groupings, the arrangements of WDM components disclosed herein enable the beamforming network to direct the beam signals to the proper time delay lines, and to differentiate multiple beams. The method of laser wavelength re-use permits to significantly reduce the number of wavelengths utilized, and thus to limit them to the standard wavelengths specified by the ITU.
摘要翻译：提供了用于构造相控阵天线波束形成网络的方法和装置，其允许扫描多个波束并同时选择合适的延迟线组。这里公开的波束形成网络产生比常规波束成形网络更少的损耗，并且在一些情况下，不需要主动切换，使得它们完全被动。本发明包括三个主要方法：（1）激光波长层次，（2）波分复用（WDM）分量的布置，（3）重复使用激光波长。多个激光波长在波长域中以组和子组（波长层级）排列。通过在这些波长分组之间进行切换，本文公开的WDM组件的布置使得波束成形网络能够将波束信号引导到适当的时间延迟线并区分多个波束。激光波长重复使用的方法允许显着减少使用的波长数量，从而将其限制在由ITU规定的标准波长。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式