公开(公告)号：US07936304B2

公开(公告)日：2011-05-03

申请号：US12267429

申请日：2008-11-07

申请人： Thomas J. Barnard ,  Thomas M. Canavan

发明人： Thomas J. Barnard ,  Thomas M. Canavan

IPC分类号： G01S3/16 ,  H01Q3/00

CPC分类号： G10K15/04 ,  H01Q3/2611 ,  H01Q3/36 ,  H01Q11/10 ,  H01Q21/08

摘要： This invention relates to the use of a sufficiently-sampled auxiliary array in combination with one or more under-sampled sub-arrays. The sufficiently-sampled auxiliary array is used to create a signal-free reference (SFR) beam that contains grating lobe interference. The SFR may be used to cancel the interfering grating lobe in an under-sampled main beam by coherently eliminating or subtracting the SFR from the main beam. Exemplary aspects of the invention thus support significant under population of the full aperture and avoid the problems and limitations of previous solution, with consequent savings in sensor hardware cost and weight.

摘要翻译： 本发明涉及充分采样的辅助阵列与一个或多个欠采样子阵列的组合的用途。 充分采样的辅助阵列用于产生包含光栅波峰干涉的无信号参考（SFR）光束。 SFR可以用于通过相干地消除或从主波束中减去SFR来消除欠采样主波束中的干扰光栅。 因此，本发明的示例性方面支持全孔径的显着性，并且避免了先前解决方案的问题和限制，从而节省传感器硬件成本和重量。

公开(公告)号：US20110063170A1

公开(公告)日：2011-03-17

申请号：US12807594

申请日：2010-09-08

申请人： Kunihiko Ookawa

发明人： Kunihiko Ookawa

IPC分类号： H01Q3/00

CPC分类号： H01Q3/2611 ,  G01S7/2813 ,  H01Q1/3233

摘要： A radar apparatus has a transmission array antenna for radiating electromagnetic waves containing a main lobe and a grating lobe in a transmission directivity, a reception array antenna for receiving electromagnetic waves radiated from the transmission array antenna and reflected from a target, and a microcomputer for setting the reception antenna in reception directivities one after another by placing a null point in a grating lobe receiving area of each directivity and placing the null points of the directivities at different positions. The microcomputer produces a reception signal, produced from the received electromagnetic waves containing the main lobe reflected from the target, every change of the reception directivity and detects the target from the average of the reception signals.

摘要翻译： 雷达装置具有发射阵列天线，用于以发射方向辐射包含主瓣和光栅的电磁波，接收阵列天线，用于接收从发射阵列天线辐射并从目标反射的电磁波;以及微型计算机，用于设定 通过在每个方向性的光栅凸角接收区域中放置零点并将方位的零点放置在不同位置，接收方向性接收天线。 微计算机产生从包含从目标反射的主瓣的接收的电磁波产生的接收信号，每接收方向性改变，并根据接收信号的平均值来检测目标。

公开(公告)号：US07876256B2

公开(公告)日：2011-01-25

申请号：US11791065

申请日：2004-11-26

申请人： Hans Hellsten

发明人： Hans Hellsten

IPC分类号： G01S13/00 ,  G01S13/52 ,  G01S3/16

CPC分类号： H01Q3/2611 ,  G01S7/2813 ,  G01S13/0209 ,  G01S13/90

摘要： A method of for processing signals in a radar system is shown comprising an antenna system having at least two antenna elements, a beam forming arrangement (ABF_RX, ABF_TX) for selectively steering the directivity of the antenna system in a given selected direction, the directivity of the antenna system having a main lobe in the selected direction and a back lobe (BL) in another direction and of a lower magnitude than the main lobe. By utilizing various scale and subtract processing both noise levels and ghost signals can be considerably reduced. A SAR radar apparatus has moreover been shown.

摘要翻译： 一种用于在雷达系统中处理信号的方法被示出为包括具有至少两个天线元件的天线系统，用于选择性地在给定选定方向上转向天线系统的方向性的波束形成装置（ABF_RX，ABF_TX），方向性 所述天线系统具有沿所选方向的主瓣和在另一方向上的后瓣（BL），并且具有比主瓣更低的幅度。 通过利用各种尺度和减法处理，可以显着地减少噪声电平和重影信号。 此外还展示了一种SAR雷达装置。

公开(公告)号：US07830982B2

公开(公告)日：2010-11-09

申请号：US11433695

申请日：2006-05-12

申请人： David Keith Mesecher

发明人： David Keith Mesecher

IPC分类号： H04L27/00

CPC分类号： H04B7/0617 ,  H01Q1/282 ,  H01Q3/26 ,  H01Q3/2605 ,  H01Q3/2611 ,  H04L27/362

摘要： An apparatus comprises a plurality of antenna elements, a plurality of digital signal processing devices for supplying phase-and-amplitude-weighted digital baseband signals, a beamforming processor for processing the weighted digital baseband signals to adaptively form a plurality of beam patterns for the antenna elements, a plurality of digital modulators for converting the digital baseband signals into intermediate frequency digital signals, and a modulator for modulating in-phase and quadrature components of the intermediate frequency digital signals to produce composite radio frequency output signals for the antenna elements. Receiving apparatus, and methods of transmitting and receiving a plurality of signals on a plurality of antenna elements are also provided.

摘要翻译： 一种装置包括多个天线元件，用于提供相位和幅度加权的数字基带信号的多个数字信号处理装置，用于处理加权的数字基带信号的波束成形处理器，以自适应地形成天线的多个波束图案 用于将数字基带信号转换为中频数字信号的多个数字调制器，以及用于调制中频数字信号的同相和正交分量的调制器，以产生用于天线元件的复合射频输出信号。 还提供接收装置以及在多个天线元件上发送和接收多个信号的方法。

公开(公告)号：US07817967B2

公开(公告)日：2010-10-19

申请号：US11449115

申请日：2006-06-08

申请人： Peter D. Karabinis ,  Dunmin Zheng

发明人： Peter D. Karabinis ,  Dunmin Zheng

IPC分类号： H03C7/02

CPC分类号： H01Q3/2611 ,  H04B7/18513

摘要： Methods of forming a downlink beam in an adaptive antenna system of a communications system that may reduce inter-system and/or intra-system interference include receiving vectors of signals including signals transmitted by user terminals of the communications system and signals transmitted by transceivers of an independent communications system, obtaining spatial information for the user terminals of the communications system and the transceivers of the independent communications system, generating complex transmitting weights that form spatial nulls directed at the transceivers of the independent communications system, and transmitting a downlink communications signal using the complex transmitting weights. Related systems are also disclosed.

摘要翻译： 在可以减少系统间和/或系统内干扰的通信系统的自适应天线系统中形成下行链路波束的方法包括接收包括由通信系统的用户终端发送的信号的信号的向量和由收发机发送的信号 独立通信系统，为通信系统的用户终端和独立通信系统的收发机获取空间信息，生成形成针对独立通信系统的收发机的空间零点的复合发射权重，以及使用该独立通信系统发送下行链路通信信号 复杂的发射权重。 还公开了相关系统。

公开(公告)号：US07737892B2

公开(公告)日：2010-06-15

申请号：US10550227

申请日：2004-03-19

申请人： Peter Graham Richardson ,  Geoffrey Martin Herbert

发明人： Peter Graham Richardson ,  Geoffrey Martin Herbert

IPC分类号： H01Q3/22 ,  G01S1/00

CPC分类号： H01Q3/2611 ,  G01S7/2813 ,  G01S13/449 ,  G01S13/5244

摘要： A time delay beamformer comprises input channels, which have associated samplers arranged to sample inputs signal carried upon the input channels. The samplers sample the input channels at a number of points in time to produce a number of sampled signals. An adaptive processor receives each of the input signals and each of the sampled signals, and generates processed signals therefrom. Time delay devices introduce a steering time delay to the processed signals and a summer generates a beamformed output signal the delayed processed signals.

摘要翻译： 时间延迟波束形成器包括输入通道，其具有被配置为对输入通道上承载的输入信号进行采样的相关采样器。 采样器在多个时间点对输入通道进行采样，以产生多个采样信号。 自适应处理器接收每个输入信号和每个采样信号，并从中产生处理后的信号。 时间延迟器件对经处理的信号引入转向时间延迟，并且加法器产生波束形成的输出信号延迟处理的信号。

公开(公告)号：US07577398B2

公开(公告)日：2009-08-18

申请号：US10181109

申请日：2001-01-16

申请人： Mano D. Judd ,  Breck W. Lovinggood ,  David T. Tennant ,  Gregory A. Maca ,  William P. Kuiper ,  James L. Alford ,  Michael D. Thomas ,  Jonathon C. Veihl

发明人： Mano D. Judd ,  Breck W. Lovinggood ,  David T. Tennant ,  Gregory A. Maca ,  William P. Kuiper ,  James L. Alford ,  Michael D. Thomas ,  Jonathon C. Veihl

IPC分类号： H04B7/15

CPC分类号： H04B7/15585 ,  G01S19/25 ,  H01Q1/007 ,  H01Q1/246 ,  H01Q3/2611 ,  H01Q3/2647 ,  H01Q3/46 ,  H01Q21/061 ,  H01Q21/28 ,  H01Q21/29 ,  H01Q23/00 ,  H01Q25/005 ,  H04B7/0825 ,  H04B7/10 ,  H04B7/15507 ,  H04B7/1555 ,  H04B7/15564

摘要： A flat-panel repeater includes a housing having a pair of oppositely facing surfaces, at least one antenna element mounted to each of the surfaces for radiating energy in a direction opposite to that of an antenna element mounted to the other of the surfaces, and an electronic circuit mounted within the housing and operatively coupling signals between at least one antenna element on each of the oppositely facing surfaces of the module. Isolation between the antennas on opposite sides of the repeater is improved by various techniques, such as use of adaptive cancellation which removes a significant portion of the feedback signal power, therefore increasing the total system isolation by the same amount. This additional isolation can be used to achieve greater system gain, and therefore significantly extend the range of the system. The repeater may also include a beamforming arrangement for creating a desired antenna pattern of one antenna relative to a base station and a desired antenna pattern of the other antenna relative to subscriber equipment.

摘要翻译： 平板中继器包括具有一对相对表面的壳体，至少一个天线元件安装到每个表面上，用于沿与安装到另一个表面的天线元件的方向相反的方向辐射能量，以及 电子电路安装在壳体内并且可操作地将信号耦合在模块的每个相对面的表面上的至少一个天线元件之间。 通过各种技术来改进中继器相对侧上的天线之间的隔离，例如使用去除反馈信号功率的相当大部分的自适应消除，从而将总系统隔离增加相同的量。 这种额外的隔离可以用于实现更大的系统增益，因此显着地扩展了系统的范围。 中继器还可以包括波束形成装置，用于相对于基站创建一个天线的期望天线方向图，并且相对于用户设备产生另一天线的期望天线方向图。

公开(公告)号：US20090135889A1

公开(公告)日：2009-05-28

申请号：US12329516

申请日：2008-12-05

申请人： Nadar Bolourchi ,  Leonid Kazakevich ,  Rui Yang

发明人： Nadar Bolourchi ,  Leonid Kazakevich ,  Rui Yang

IPC分类号： H04B1/707

CPC分类号： H01Q3/2611 ,  H04B7/0617 ,  H04B7/0669 ,  H04J13/0077 ,  H04W88/08

摘要： The number of users and data capacity of wireless systems are increased by employing apparatus and method for increasing the number of spreading codes available in the system by providing a mechanism to reuse the already allocated spreading code or use the codes that may correlate to those already being used within the same sector/cell. This, in return, provides capacity improvement proportional to the number of added base station (BS) antennas for each cell. An antenna null steering technique for code allocation maintains the cross correlation properties of the codes only for the desired user and to obtain a gain in capacity improvement.

摘要翻译： 通过采用用于增加系统中可用的扩展码数目的装置和方法来提高无线系统的用户数量和数据容量，提供一种机制来重用已经分配的扩展码或使用可能与已经分配的扩展码相关的代码 在相同的扇区/单元格内使用。 这反过来提供了与每个小区的增加的基站（BS）天线的数量成比例的能力提高。 用于代码分配的天线零点转向技术仅针对期望的用户维护代码的互相关性质，并获得容量改进的增益。

公开(公告)号：US07487068B2

公开(公告)日：2009-02-03

申请号：US11674980

申请日：2007-02-14

申请人： Byong-Kun Chang ,  Chang-Dae Jeon

发明人： Byong-Kun Chang ,  Chang-Dae Jeon

IPC分类号： H04B15/00 ,  G06F17/00

CPC分类号： H01Q3/2611 ,  G01S7/023 ,  H01Q3/36 ,  H04B7/0854

摘要： The present invention relates to an interference eliminating method in an adaptive array system, and an array processing device using the interference eliminating method. A predetermined array weight is applied to signals input through respective array elements, and the respective input signals to which the array weight is applied are added to generate an array output signal. Subsequently, the array weight is updated based on the array output signal and a first convergence parameter for unit gain constraint, and the array weight is updated based on the array output signal and a second convergence parameter for null constraint. Since a process for generating the array output signal is repeatedly performed based on the updated array weight, an interference signal is eliminated from the input signal.

摘要翻译： 本发明涉及自适应阵列系统中的干扰消除方法，以及使用干扰消除方法的阵列处理装置。 将预定的阵列权重施加到通过各个阵列元素输入的信号，并且相加输入阵列权重的各个输入信号相加以产生阵列输出信号。 随后，基于阵列输出信号和用于单位增益约束的第一收敛参数来更新阵列权重，并且基于阵列输出信号和用于空限制的第二收敛参数来更新数组权重。 由于基于更新的阵列权重重复执行用于产生阵列输出信号的处理，所以从输入信号中消除干扰信号。

公开(公告)号：US20080316990A1

公开(公告)日：2008-12-25

申请号：US12207593

申请日：2008-09-10

申请人： DAVID STEER ,  KOON HOO TEO ,  ADRIAN SMITH

发明人： DAVID STEER ,  KOON HOO TEO ,  ADRIAN SMITH

IPC分类号： H04Q7/24 ,  H04M1/00

CPC分类号： H01Q3/2611 ,  H01Q3/26

摘要： Embodiments of the invention facilitate providing wireless links with longer link ranges and/or better suppression of interference than can be provided by the integrated antennas of a typical wireless network node. While, in some cases, it is possible to install intermediate wireless network nodes to hop through long expanses between distant wireless network nodes, it is desirable for distantly spaced wireless network nodes to reach one another through a single transit link (i.e. one hop). This approach is preferable because a single transit link is capable of higher data rates and better interference suppression than multi-hop transit links. The present invention provides methods and apparatus for enhancing the link range achievable by typical wireless network nodes so that distantly spaced wireless network nodes are able to communicate with one another using only a single-transit link.

摘要翻译： 本发明的实施例有助于提供具有比典型无线网络节点的集成天线提供的更长的链路范围和/或更好的干扰抑制的无线链路。 虽然在某些情况下，有可能安装中间无线网络节点来跳过远距离无线网络节点之间的长时间扩展，但是期望远距离间隔的无线网络节点通过单个转接链路（即，一跳）彼此到达。 这种方法是优选的，因为单个转接链路能够具有比多跳中继链路更高的数据速率和更好的干扰抑制。 本发明提供了用于增强典型无线网络节点可实现的链路范围的方法和装置，使得远距离间隔的无线网络节点能够仅使用单一转接链路彼此通信。