公开(公告)号：US09435893B2

公开(公告)日：2016-09-06

申请号：US13549521

申请日：2012-07-16

申请人： Donald C. D. Chang

发明人： Donald C. D. Chang

IPC分类号： H01Q3/00 ,  G01S19/21 ,  G01S19/28 ,  G01S19/35 ,  G01S19/36 ,  H01Q3/26 ,  H01Q25/00 ,  H01Q1/28

CPC分类号： G01S19/21 ,  G01S19/28 ,  G01S19/35 ,  G01S19/36 ,  H01Q1/28 ,  H01Q3/2605 ,  H01Q3/267 ,  H01Q3/2682 ,  H01Q25/00

摘要： An advanced multiple-beam GPS receiving system is achieved that is capable of simultaneously tracking multiple GPS satellites independently, detecting multiple interference signals individually, and suppressing directional gain in the antenna pattern of each beam in the interference directions. The GPS receiving system can be used for both planar and non-planar receiving arrays, including arrays that are conformally applied to the surface of a platform such as an aircraft. The GPS receiver combines spatial filtering and acquisition code correlation for enhanced rejection of interfering sources. Enhanced gain in the direction of GPS satellites and the ability to shape the beam patterns to suppress gain in the direction of interfering sources make the GPS receiving system largely insensitive to interfering and jamming signals that plague conventional GPS receivers.

摘要翻译： 实现了能够独立地同时跟踪多个GPS卫星，分别检测多个干扰信号，抑制干扰方向上每个波束的天线方向图中的方向增益的高级多波束GPS接收系统。 GPS接收系统可以用于平面和非平面接收阵列，包括保形应用于诸如飞行器的平台的表面的阵列。 GPS接收机结合了空间滤波和采集码相关性，以增强干扰源的抑制。 GPS卫星方向的增强增益以及形成波束图案以抑制干扰源方向增益的能力使GPS接收系统对传统GPS接收机的干扰和干扰信号敏感。

公开(公告)号：US09252799B2

公开(公告)日：2016-02-02

申请号：US12951995

申请日：2010-11-22

申请人： Donald C. D. Chang ,  Yulan Sun ,  Frank Lu

发明人： Donald C. D. Chang ,  Yulan Sun ,  Frank Lu

IPC分类号： H04L27/06 ,  H03M1/20 ,  H03M1/12 ,  H03M1/06 ,  H04B1/04 ,  H04B7/10 ,  H03M1/00 ,  H03M1/08 ,  H03M1/18

CPC分类号： H03M1/002 ,  H03M1/0641 ,  H03M1/08 ,  H03M1/12 ,  H03M1/1205 ,  H03M1/1215 ,  H03M1/188 ,  H03M1/20 ,  H04B1/0475 ,  H04B1/123 ,  H04B7/10 ,  H04L27/06

摘要： A receiver with orthogonal beam forming technique is achieved that is capable of differentiating different signal components within the received composite signal. An adaptive processor is used to eliminate the signal component whose phase information is known or can be calculated. The phase information of the major component of a signal can be easily acquired by using a limiter. The phase information of other signal components can be acquired by their direction information and other characteristics, such as modulation scheme, etc. Multiple orthogonal beams can be formed by eliminating one unwanted signal component each time by the adaptive processor until all unwanted signal is eliminated. Thus, a composite signal from multiple sources can be broken down into their component signals.

摘要翻译： 实现了具有正交波束形成技术的接收机，其能够区分接收到的复合信号中的不同信号分量。 使用自适应处理器来消除其相位信息已知或可被计算的信号分量。 可以通过使用限制器容易地获取信号的主要成分的相位信息。 其他信号分量的相位信息可以通过它们的方向信息和诸如调制方案等的其它特性来获取。可以通过自适应处理器每次消除一个不需要的信号分量来形成多个正交波束，直到消除所有不需要的信号。 因此，来自多个源的复合信号可以被分解成它们的分量信号。

公开(公告)号：US09231729B2

公开(公告)日：2016-01-05

申请号：US13778168

申请日：2013-02-27

申请人： Donald C. D. Chang

发明人： Donald C. D. Chang

IPC分类号： H04J3/04 ,  H04J14/08 ,  H04J14/02

CPC分类号： H04J14/08 ,  H04J14/0282 ,  H04J14/0298

摘要： A data communication system comprises a wave-front multiplexer configured to wave-front multiplex first electronic signals into second electronic signals. An electronic-to-optical converter is configured to convert a third electronic signal carrying information associated with the second electronic signals into a first optical signal. An optical transferring module is configured to split the first optical signal into second optical signals, wherein each of the second optical signals carries the same data as the first optical signal carries. Optical-to-electronic converters are configured to convert the second optical signals into fourth electronic signals. Wave-front demultiplexers each are configured to wave-front demultiplex the fourth electronic signals into fifth electronic signals equivalent to the first electronic signals respectively.

摘要翻译： 数据通信系统包括波前多路复用器，其被配置为将第一电子信号波前复用为第二电子信号。 电子对光转换器被配置为将携带与第二电子信号相关联的信息的第三电子信号转换为第一光信号。 光传输模块被配置为将第一光信号分离成第二光信号，其中每个第二光信号携带与第一光信号携带的数据相同的数据。 光 - 电转换器被配置为将第二光信号转换成第四电子信号。 波前解复用器各自被配置为分别将第四电子信号波前解复用为与第一电子信号相当的第五电子信号。

公开(公告)号：US08862050B2

公开(公告)日：2014-10-14

申请号：US13231681

申请日：2011-09-13

申请人： Donald C. D. Chang

发明人： Donald C. D. Chang

IPC分类号： H04B7/185 ,  H04B7/10

CPC分类号： H04J14/06 ,  H04B7/10 ,  H04B7/185 ,  H04L27/26 ,  H04W16/14 ,  H04W72/0446

摘要： A novel terrestrial wireless communications technique for terrestrial portable terminals including hand-held mobile devices and fixed wireless instruments, utilizing a spoke-and-hub communications system, having a plurality of individual hubs and/or base-stations all in communications with the portable terminals. The portable terminals and the hubs are assigned to use incompatible polarity formats in terms of circularly polarity (CP) and linearly polarity (LP). In forward links, a signal processed by the LP ground telecommunications hubs is radiated through multiple antennas with various LP polarities to an individual CP user simultaneously. The multiple paths are organized via assignments of a plurality of polarities, frequency slots, and directions by wavefront multiplexing/demultiplexing techniques such that the same communications assets including frequency spectrum may be re-used by other users. The same polarity diversity methods can be extended to peer-to-peer communications.

摘要翻译： 一种用于陆地便携式终端的新颖的地面无线通信技术，包括手持式移动设备和固定无线设备，利用辐射和轮毂通信系统，其具有与便携式终端通信的多个单独集线器和/或基站 。 便携式终端和集线器被分配为在圆极性（CP）和线性极性（LP）方面使用不兼容的极性格式。 在前向链路中，由LP地面电信集线器处理的信号通过具有各种LP极性的多个天线同时辐射到个人CP用户。 通过波前复用/解复用技术的多个极性，频率时隙和方向的分配来组织多个路径，使得包括频谱的相同通信资产可以被其他用户重新使用。 相同的极性分集方法可以扩展到对等通信。

公开(公告)号：US20120328036A1

公开(公告)日：2012-12-27

申请号：US13274782

申请日：2011-10-17

申请人： Donald C. D. Chang

发明人： Donald C. D. Chang

IPC分类号： H04L1/02

CPC分类号： H01Q25/00 ,  H01Q1/007 ,  H01Q1/2258 ,  H01Q1/2266 ,  H01Q3/2605 ,  H04J13/0003 ,  H04J13/004

摘要： A system is provided that enhances the throughput and reliability of wireless communications by providing multi-beam user terminals that exhibit directional discrimination. Multiple wireless communication channels are matched with multiple beams created from an array antenna by a beam-forming processor. The multiple wireless communication channels are bonded into a single virtual channel, thereby increasing data bandwidth while reducing interference and multi-path effects that can degrade communications. The beam-forming function may be performed in a dedicated beam-forming processor or may reside within a general-purpose microprocessor located in the user terminal. In addition, a wireless communications system with access points featuring multiple beams that exhibit directional discrimination that can concurrently support multiple users with multi-beam terminals via a common frequency channel. Both forward and return links feature multiple-folded frequency reuse, enabling multiple users with higher throughput and improved reliability. The spectrum utility of the communications system has been enhanced with multiple folds.

摘要翻译： 提供了一种系统，其通过提供展现定向鉴别的多光束用户终端来增强无线通信的吞吐量和可靠性。 多个无线通信信道与由波束形成处理器从阵列天线产生的多个波束匹配。 多个无线通信信道被绑定到单个虚拟信道中，从而增加数据带宽，同时减少可能降低通信的干扰和多径效应。 波束形成功能可以在专用波束形成处理器中执行，或者可以驻留在位于用户终端中的通用微处理器中。 此外，具有接收点的无线通信系统具有多个波束，其具有可以经由公共频率信道同时支持具有多波束终端的多个用户的方向性鉴别。 前向和后退链路均具有多重折叠频率重用功能，可为多个用户提供更高的吞吐量和更高的可靠性。 通信系统的频谱效用已经增加了多个折叠。

公开(公告)号：US20120326925A1

公开(公告)日：2012-12-27

申请号：US13549521

申请日：2012-07-16

申请人： Donald C. D. Chang

发明人： Donald C. D. Chang

IPC分类号： G01S19/23 ,  G01S19/21

CPC分类号： G01S19/21 ,  G01S19/28 ,  G01S19/35 ,  G01S19/36 ,  H01Q1/28 ,  H01Q3/2605 ,  H01Q3/267 ,  H01Q3/2682 ,  H01Q25/00

摘要： An advanced multiple-beam GPS receiving system is achieved that is capable of simultaneously tracking multiple GPS satellites independently, detecting multiple interference signals individually, and suppressing directional gain in the antenna pattern of each beam in the interference directions. The GPS receiving system can be used for both planar and non-planar receiving arrays, including arrays that are conformally applied to the surface of a platform such as an aircraft. The GPS receiver combines spatial filtering and acquisition code correlation for enhanced rejection of interfering sources. Enhanced gain in the direction of GPS satellites and the ability to shape the beam patterns to suppress gain in the direction of interfering sources make the GPS receiving system largely insensitive to interfering and jamming signals that plague conventional GPS receivers.

摘要翻译： 实现了能够独立地同时跟踪多个GPS卫星，分别检测多个干扰信号，抑制干扰方向上每个波束的天线方向图中的方向增益的高级多波束GPS接收系统。 GPS接收系统可以用于平面和非平面接收阵列，包括保形应用于诸如飞行器的平台的表面的阵列。 GPS接收机结合了空间滤波和采集码相关性，以增强干扰源的抑制。 GPS卫星方向的增强增益以及形成波束图案以抑制干扰源方向增益的能力使GPS接收系统对传统GPS接收机的干扰和干扰信号敏感。

公开(公告)号：US20120319885A1

公开(公告)日：2012-12-20

申请号：US13525315

申请日：2012-06-17

申请人： Donald C. D. Chang

发明人： Donald C. D. Chang

IPC分类号： H03M1/12

CPC分类号： H04B7/18515 ,  H03F1/0277 ,  H03F1/3247 ,  H03F1/3258 ,  H03F3/211 ,  H03F3/24 ,  H03F3/68 ,  H03F3/72 ,  H03F2201/3212 ,  H03F2203/21106 ,  H03F2203/21109 ,  H03F2203/21136 ,  H03F2203/21145 ,  H03F2203/21175 ,  H03F2203/7215 ,  H03F2203/7224 ,  H03F2203/7236

摘要： A system for processing data streams or signals includes a wave-front multiplexer configured to process first and second input signals into first and second output signals each carrying information associated with the first and second input signals, a first processing unit configured to process a third input signal carrying information associated with the first output signal into a third output signal, a second processing unit configured to process a fourth input signal carrying information associated with the second output signal into a fourth output signal, and a wave-front demultiplexer configured to process fifth and sixth input signals into fifth and sixth output signals each carrying information associated with the fifth and sixth input signals. The fifth input signal carries information associated with the third output signal, and the sixth input signal carries information associated with the fourth output signal.

摘要翻译： 用于处理数据流或信号的系统包括：波前多路复用器，被配置为将第一和第二输入信号处理成第一和第二输出信号，每个输出信号携带与第一和第二输入信号相关联的信息;第一处理单元，被配置为处理第三输入 将与第一输出信号相关联的信号传送到第三输出信号中的第二处理单元，被配置为将携带与第二输出信号相关联的信息的第四输入信号处理为第四输出信号的第二处理单元，以及被配置为处理第五输出信号的波前解复用器 以及第六输入信号，分别输入与第五和第六输入信号相关联的信息的第五和第六输出信号。 第五输入信号携带与第三输出信号相关的信息，第六输入信号携带与第四输出信号相关的信息。

公开(公告)号：US20120212371A1

公开(公告)日：2012-08-23

申请号：US13024244

申请日：2011-02-09

申请人： Donald C. D. Chang

发明人： Donald C. D. Chang

IPC分类号： H01Q3/00

CPC分类号： H04B7/086 ,  H01Q3/24 ,  H01Q3/2605 ,  H01Q3/2647 ,  H01Q3/46 ,  H04B7/0615

摘要： A receive only smart antenna with a command pointing option for communicating with geostationary satellites that autonomously detects the directions from which desired signal are received, and steer the multiple beams accordingly. An array feed is used to illuminate a parabolic reflector. Each feed element of the receive only smart antenna is associated with a unique beam pointing direction. As a receiver is switched to different feed elements, the far-field beam is scanned, making it possible to track a geostationary satellite in a slightly inclined orbit. This eliminates the need for mechanical tracking and maintains high antenna gain in the direction of the geostationary satellite. The receive only smart antenna also features capabilities to form multiple simultaneous beams supporting operations of multiple geo-satellites in closely spaced slightly inclined orbits. The designs can support orthogonal beams for enhanced bandwidth capacity via multiple beams with excellent spatial isolation.

摘要翻译： 具有用于与对地静止卫星进行通信的命令指示选项的仅接收智能天线，其自主地检测所接收的所需信号的方向，并相应地引导多个波束。 阵列馈线用于照亮抛物面反射器。 仅接收智能天线的每个馈送元件与唯一的波束指向方向相关联。 随着接收机被切换到不同的馈送元件，远场光束被扫描，使得可以以稍微倾斜的轨道跟踪对地静止卫星。 这消除了机械跟踪的需要，并在对地静止卫星的方向上保持高天线增益。 仅接收智能天线还具有形成多个同时波束的能力，其支持在紧密间隔的稍微倾斜的轨道中的多个地球卫星的操作。 这些设计可以通过具有优异空间隔离的多个波束支持正交波束，以提高带宽容量。

公开(公告)号：US20120183295A1

公开(公告)日：2012-07-19

申请号：US13231681

申请日：2011-09-13

申请人： Donald C. D. Chang

发明人： Donald C. D. Chang

IPC分类号： H04J14/06

CPC分类号： H04J14/06 ,  H04B7/10 ,  H04B7/185 ,  H04L27/26 ,  H04W16/14 ,  H04W72/0446

摘要： A novel terrestrial wireless communications technique for terrestrial portable terminals including hand-held mobile devices and fixed wireless instruments, utilizing a spoke-and-hub communications system, having a plurality of individual hubs and/or base-stations all in communications with the portable terminals. The portable terminals and the hubs are assigned to use incompatible polarity formats in terms of circularly polarity (CP) and linearly polarity (LP). In forward links, a signal processed by the LP ground telecommunications hubs is radiated through multiple antennas with various LP polarities to an individual CP user simultaneously. The multiple paths are organized via assignments of a plurality of polarities, frequency slots, and directions by wavefront multiplexing/demultiplexing techniques such that the same communications assets including frequency spectrum may be re-used by other users. The same polarity diversity methods can be extended to peer-to-peer communications.

摘要翻译： 一种用于陆地便携式终端的新颖的地面无线通信技术，包括手持式移动设备和固定无线设备，利用辐射和轮毂通信系统，其具有与便携式终端通信的多个单独集线器和/或基站 。 便携式终端和集线器被分配为在圆极性（CP）和线性极性（LP）方面使用不兼容的极性格式。 在前向链路中，由LP地面电信集线器处理的信号通过具有各种LP极性的多个天线同时辐射到个人CP用户。 通过波前复用/解复用技术的多个极性，频率时隙和方向的分配来组织多个路径，使得包括频谱的相同通信资产可以被其他用户重新使用。 相同的极性分集方法可以扩展到对等通信。

公开(公告)号：US20110032173A1

公开(公告)日：2011-02-10

申请号：US12851011

申请日：2010-08-05

申请人： Donald C. D. Chang ,  Michael T. S. Lin ,  Eric Hu

发明人： Donald C. D. Chang ,  Michael T. S. Lin ,  Eric Hu

IPC分类号： H01Q3/01

CPC分类号： H01Q3/06 ,  H01Q3/04 ,  H01Q3/40 ,  H01Q19/10 ,  H01Q19/12 ,  H01Q19/132

摘要： The present invention relates to antenna architectures and methods on re-configurable multi-element antennas via feed re-positioning for various optimized radiation contours, including beam forming (or shaping) and/or null steering on contoured beams, spot beams, and orthogonal beams. The feed re-positioning techniques can also be used in radiation pattern optimization processing during antennas designing phases for fixed beams. The techniques are applicable for satellite communications. For satellite antennas, the beam shaping capability via element repositioning can be utilized for (1) optimized geometries on satellite antennas for given desired coverage areas, (2) re-optimizing radiation contours for reconfigurable antenna on board satellites in operation, (3) additional flexibility for satellite antennas using ground based beam forming (GBBF). As to satellite ground terminals, the same techniques are applicable for both fixed and mobile satellite terminals featuring either single beam or multiple beams. For fixed terminals, are applicable for terrestrial based communications; such as retrofitting existing antennas eliminating interference radiations coming from fixed or slow varying directions.

摘要翻译： 本发明涉及通过用于各种优化的辐射轮廓的馈送重新定位的可重新配置的多元天线的天线结构和方法，包括波束形成（或整形）和/或在轮廓波束，点波束和正交波束上的零转向 。 饲料重新定位技术也可用于固定光束天线设计阶段的辐射图优化处理。 这些技术适用于卫星通信。 对于卫星天线，通过元件重新定位的波束整形能力可以用于（1）用于给定期望覆盖区域的卫星天线上的优化几何形状，（2）在操作中重新优化船上卫星上的可重构天线的辐射轮廓，（3）附加 使用地面波束形成（GBBF）的卫星天线的灵活性。 对于卫星接地终端，相同的技术适用于具有单波束或多波束的固定和移动卫星终端。 对于固定终端，适用于地面通信; 例如改进现有天线，消除来自固定或缓慢变化方向的干扰辐射。